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1. 41 3 mm 0 25 i s E t gt 60 mm 0 2 5 mm 101 8mm 0 5 20 5 mm 0 2 90 mm 20 2 209 150 mm 0 3 101 6 mm 94 mm 0 5 0 2 70mm 202 4 30 9 mm 0 2 3 8 mm 0 3 Figure 2 12 Autoloader fixing points 203 2 _______ 208 149 3 82 6 85 8 21 8 A g Y M3 max depth 4 0 mm all places 79 2 9 r Tolerances are 0 6 mm unless otherwise stated 146 1 0 8 139 7 J 2 12 Edition 8 December 1999 Note Note Installation Airflow and Cooling Requirements Airflow and Cooling Requirements In order to keep temperature and humidity at acceptable levels you are advised to ensure that forced airflow is provided across the drive or autoloader Depending on the type of installation the airflow may be as low as 0 03 m min 1 ft min through the drive or 0 3 mm 0 01 in of water pressure drop This level of airflow may be achieved by the use of a very small fan say 40 mm 1 in square As a guideline a typical 80mm 3 in square fan in a system box produces 0 6 to 0 9 m min 20 to 30 ft min Make sure you do not have any unfilled peripheral slots in your system These may cause airflow to bypass the drive completely Monitoring Airflow The relationship between airflow and pressure drop depends heavily on the actual design of the cabinet in which the drive is placed The important factor is to ensure that the drive is within the specified t
2. observed Parameter Specification Ambient Operating 5 C to 40 C AT lt 10 C h Temperature Non Operating 40 C to 70 C AT lt 20 C h Humidity Operating 20 to 80 RH non condensing Maximum wet bulb temperature 26 C ARH lt 30 h Non Operating 5 to 95 RH ARH lt 30 h Vibration Operating 3 axes for Swept Sine 0 3 g peak 5 500 Hz 1 octave min ind Random 5 350 Hz 0 00053 g Hz aitoloaders 350 500 Hz 6 dB octave 500 Hz 0 000271 g2 Hz 0 5 g rms Non Operating 3 axes Swept Sine 0 75 g peak 5 500 Hz 1 octave min Random 5 100 Hz 0 020 g Hz 100 137 Hz 6 dB octave 137 350 Hz 0 0107 g Hz 350 500 Hz 6 dB octave 500 Hz 0 0052 g2 Hz 2 41 g rms Shock Operating drives 3 axes 5 0 g peak for 3 ms half sine autoloader 1 axis no performance change Operating drives 2 axes 8 0 g peak for 11 ms half sine 3 faces autoloader 1 axis no data loss Non Operating 6 faces 90 0 g peak for 3 ms half sine no damage 30 0 g peak for 26 ms trapezoidal Altitude Operating 0 km to 4 6 km 0 to 15 000 ft Non Operating 0 km to 15 2 km 0 to 50 000 ft Transportatio Vibration Swept Sine 0 5 g peak 5 200 5 Hz 1 octave min n Type 1 package 3 axes 5 min dwell at peak resonance Type 1 One Random 5 100 Hz 0 015 g2 Hz drive packaged 100 200 Hz 6 dB octave individually 200 Hz 0 0038 g2 Hz 1 47 g rms also ten drives 30 min axis Seis Impact 10 vertical impacts 6 fac
3. lt 0 15V lt 0 15V lt 0 15V lt 0 1V lt 0 1V lt 0 15V lt 0 1V lt 0 1V lt 0 15V lt 0 15V 12V current typical 0 1A operation 0 1A 0 12A 0 12A lt 0 2A 0 06A 0 03A lt 0 25A lt 0 25A lt 0 25A lt 0 25A3 0 4A 0 4A lt 1 12A 12V current worst case peaks lt 2s 0 4A 0 4A 0 8A 0 51A 0 3A 0 8A2 2 0A 0 8A2 2 0A 1 2A 1 2A2 2 049 12V power supply noise amp ripple peak to peak lt 0 15V lt 0 15V lt 0 15V lt 0 15V lt 0 15V lt 0 15V lt 0 15V lt 0 15V lt 0 15V Power consumption typical operation lt 5 W lt 5 W 8 55 W 5 7W 3 8W gw 6 8W gw 73W 73W 16 6W Power consumption worst case 8 8W 145 if programming the EEPROM During rewind the typical 12V current is 0 2A for about 90 seconds 8 8W 15 6W 2embedded drive 10 2W 6 1W 15 6W 28W Schanger mechanism 20 3W 20 3W 29 5W3 Appendix A 5 Edition 8 December 1999 Quality and Regulatory HP HP HP HP HP HP HP HP HP HP HP 35470A 35480A C1534A C1536A C1533A C1537A C1539A C1553A C1557A C5683A C5713A Specified MTBF 200 000 200 000 300 000 300 000 35 000 55 000 400 000 hours atx duty cycle 5 5 12 12 30 30 12 Drive life 2 000 2 000 6 000 6 000 6000 6000 6000 tape pulling hours Chan
4. 8 10 NRZI 8 10 NRZI 8 10 NRZI 8 10 NRZI 8 10 NRZI 8 10 NRZI 8 10 NRZI Data density on tape 61 000 bpi 61 000 bpi 6 1 000 bpi 61 000 bpi 61 000 bpi 122 000 bpi 61 000 bpi 61 000 bpi 122 000 bpi 122 000 bpi 122 000 bpi Track density 1869 tpi 1869 tpi 1869 tpi 1869 tpi 2793 tpi 2793 tpi 2793 tpi 2793 tpi 2793 tpi DDS 1 60m cartridges are not supported in DDS 4 drives 90m cartridges are read only 3738 tpi 3738 tpi Appendix A 3 Edition 8 December 1999 Mechanical Load mechanism HP 35470A reels raised HP 35480A reels raised HP C1534A cartridge lowered HP C1536A cartridge lowered HP C1533A reels raised HP C1537A reels raised HP C1539A cartridge lowered HP C1553A reels raised HP C1557A reels raised HP C5683A cartridge lowered HP C5713A cartridge lowered Tension control firmware firmware mechani cal tension arm mechani cal tension arm firmware firmware firmware mechanical firmware firmware firmware firmware Independent reel motor control No No No Number of tape guides Normal tape speed 8 mm s 0 315 ips 8 mm s 0 315 ips 15 5 mm s 0 61 ips 10 4 mm s 0 41 ips 15 5 mm s 0 61 ips 15 5 mm s 0 61 ips 10 4mm s 0 41 ips 23 39 mm s 0 9
5. Briefly the development of the DDS formats to date has been as follows DDS 1 DDS 1 was originally called DDS It uses 60m and 90m cartridges and does not allow hardware data compression DDS1 DC DDS1 DC or simply DDS DC extended DDS 1 to include hardware data compression This can typically double the capacity of a tape DDS 2 DDS 2 includes the features of DDS 1 and DDS DC but increases the amount of data that can be written to a single cartridge in two ways m It uses longer thinner tapes 120m m It writes data in narrower tracks Together these features mean that a DDS 2 tape can hold twice the data of a DDS 1 90m tape DDS 3 DDS 3 stores data at twice the density of DDS 1 and DDS 2 and also allows more of the tape to be used for data As a result a DDS 3 125m tape holds three times the data of a DDS 2 tape DDS 4 DDS 4 tape at 150m is longer than DDS 3 125m tape It holds holds two thirds again as much data as a DDS 3 tape These formats are described in much more detail in Chapter 3 of Background to DDS Products Volume 4 of the HP DDS Technical Manual Choosing Cartridges To exploit the full potential of a DDS format drive you should use matching cartridges DDS 1 cartridges for DDS 1 drives DDS 2 cartridges for DDS 2 drives and DDS 3 cartridges for DDS 3 drives This will allow the drives to store the maximum amount of data on a tape However HP DDS drives are backward compatible This means that for
6. DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 nor supported DDS 1 read only DDS 2 DDS 3 DDS 4 Edition 8 December 1999 1 5 Introduction Related Documents HP C5713A The HP C5713A DDS 4 Autoloader combines a changer mechanism with an HP C5683A DDS 4 tape drive mechanism The autoloader houses up to six DDS cartridges in a removable magazine which enables you to back up 240 gigabytes of data overnight assuming a data compression ratio of 2 1 High speed file retrieval and tape swapping typically allows access to any file in an average of ninety seconds The embedded drive has the features listed for the HP C5683A above The autochanger adds the following a A Liquid Crystal Display LCD giving clear and comprehensive indications of the status of the autoloader a A low cost magazine carrying up to six DDS cartridges giving a magazine capacity of 240 gigabytes for DDS 4 cartridges and 2 1 data compression 4 Compatibility with the SCSI 2 Medium Changer command set a A common SCSI 2 interface for the drive and changer a A standard 5 inch full height form factor Tapes are used as follows DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 nor supported DDS 1 read only DDS 2 DDS 3 DDS 4 Related Documents The following documents provide additional information Documents Specific to HP DDS Drives m HP DDS Technical Manual Vol 2 Integration Guide part no C1533 90906 m HP DDS Technical Manual Vol 3
7. The SCSI Interface part no C1533 90907 m HP DDS Technical Manual Vol 4 Background to DDS Products part no C1533 90908 m HP DDS Technical Manual Vol 5 HP DDS Configuration Guide part no C1533 90915 Contact your HP supplier for copies General Documents and Standardization m Small Computer System Interface SCSI 1 ANSI X3 131 1986 The ANSI authorized standard for SCSI implementation available through ANSI m Enhanced Small Computer System Interface SCSI 2 ANSI X3T9 2 1993 Rev 10L available through ANSI m DDS 1 a ECMA 170 a ISO IEC 12247 1993 a ANSIX3 203 and X3 206 m DDS DC a ECMA 150 2nd Edition a ISO IEC 11557 1992 1 6 Edition 8 December 1999 Introduction Ordering Supplies m DCLZ a ECMA 151 2nd Edition a ISO IEC 11558 1992 a ANSI X3 223 m DDS 2 a ECMA 198 2nd Edition a ISO IEC 13923 1995 m DDS 3 a ECMA 236 1st Edition m DDS 4 a ECMA 288 1st Edition Copies of General Documents can be obtained from ANSI 11 West 42nd Street New York NY 10036 8002 USA ISO CP 56 CH 1211 Geneva 20 Switzerland ECMA 114 Rue du Rh ne Tel 41 22 849 6000 CH 1204 Geneva Web URL http www ecma ch Switzerland Global Engineering 2805 McGaw Tel 800 854 7179 or 714 261 1455 Documents Irvine CA 92714 USA Ordering Supplies Part number for supplies are as follows C5718A 150m DDS 4 Media Recognition System cartridge C5708A 125m DDS 3 Media Recognition
8. lt 14s lt 14s lt 15s Fast Search average file access time Note 52s 40s 40s 45s 40s 40s 50s 50s 90m DDS 2 DDS 3 DDS 2 DDS 2 DDS 2 DDS 4 DDS 4 n s not supported HP C1534A does not support data compression These are uncompressed capacities t read only wide SCSI Assumptions m Tapes conform to the DDS Media Specification m Tape heads are cleaned regularly using the guidelines in Chapter 3 m Drive and tapes are kept within environmental specifications m C3 ECC frames read after write and read retries use the default settings m Transfer rates are using the optimal tape type DDS 2 tape in a DDS 2 drive DDS 3 in a DDS 3 drive DDS 4 tapes in a DDS 4 drive Data Capacity Using data compression on the drives except the HP C1534A the actual capacity that can be achieved depends on the nature of the data Load and Unload Times The load time is from when a cartridge is inserted to when the drive is ready to start acting upon the next host command The time taken to unload and eject a cartridge depends heavily on the length of tape the number of partitions and the current position on the tape The tape must first be rewound which could take up to 80s for a DDS 2 tape 60s for DDS 1 90m if EOD is near the end of the tape The drive then updates the Tape log Finally the drive performs the unloading procedure As a result the entire eject sequence
9. 04h DISCONNECT 05h INITIATOR DETECTED ERROR 06h ABORT 07h MESSAGE REJECT 08h NO OP NO OPERATION 09h MESSAGE PARITY ERROR OAh LINKED COMMAND COMPLETE OBh LINKED COMMAND COMPLETE with flag OCh BUS DEVICE RESET 8Xh IDENTIFY For DDS 1 DDS 2 and DDS 3 drives EXTENDED MESSAGE 01h is only supported with the Extended Message Code of 01h SYNCHRONOUS DATA TRANSFER REQUEST All drives support both synchronous and asynchronous data transfer and no vendor unique codes are implemented The IDENTIFY message 80h FFh is only supported for the values 80h and COh 7 2 Edition 8 December 1999 Interface Implementation Supported Status Codes Supported Status Codes The following status codes are supported 00h GOOD 02h CHECK CONDITION 03h BUSY 10h INTERMEDIATE GOOD 18h RESERVATION CONFLICT Supported Commands The following commands are supported They include all Mandatory and Extended commands and most Optional commands Opcode Command 00h Oth 02h 03h 05h 07h 08h OAh OCh 10h 11h 12h 13h 15H TEST UNIT READY REWIND REQUEST BLOCK ADDRESS REQUEST SENSE READ BLOCK LIMITS INITIALIZE ELEMENT STATUS READ WRITE SEEK BLOCK WRITE FILEMARKS SPACE INQUIRY VERIFY MODE SELECT Description Checks if the drive is ready Tells the drive to position the tape at the beginning of the currently active partition Not HP C1534A 36A Returns a count re
10. 4 0 in The overall dimensions of the autoloader without the front panel are as follows Height 82 6 mm 3 25 in Depth 203 2 mm 8 0 in Width 146 1 mm 5 75 in Weight HP C1533A HP C1537A 1 kilogram 2 2 lb without a cartridge HP C1534A HP C1536A 0 66 kilogram 1 5 lb without a cartridge HP C1539A 0 685 kilogram 1 5 lb without a cartridge HP C5683A 0 716 kilogram 1 58 lb without a cartridge HP C1553A HP C1557A 2 2 kilogram 4 8 lb without a magazine HP C5713A 1 989 kilogram 4 38 1b without a magazine Orientation Autoloaders only The autoloaders are designed to operate in two orientations as shown in figure 8 1 Figure 8 1 Operating orientations 1 O eo HHE mmm Ama See As a special order the HP C1553A can be supplied for use in the vertical orientation with a different front panel that has the icons and LCD rotated 8 2 Edition 8 December 1999 Physical and Safety Specifications Environmental Environmental These specifications are for the drive or autoloader not for any particular DDS format cartridge Ifa cartridge is used which has more stringent requirements than these specifications the cartridge s requirements should be
11. Edition 1 June 94 All Edition 2 November 94 Minor updates Edition 3 May 95 Cosmetic changes Draft Edition 4 Nov 95 Addition of HP C1537A and HP C1553A Draft Edition 5 July 1996 Addition of HP C1539A Edition 6 September 1996 Addition of HP C1557A Edition 6 1 March 1997 Changed MTBF for HP C1553A p 9 2 Changed duty cycle for HP C1557A p 9 2 Tolerances and dimensions on Figure 2 8 changed slightly Inclusion of supported Mode and Log pages p 7 5 Edition 6 2 October 1997 Small changes Edition 6 3 May 1998 Small changes Edition 7 May 1999 Addition of HP C5683A HP C5713A and HP C1536A Edition 8 December 1999 Small changes Note As far as this manual is concerned m the HP C1554A is identical to the HP C1537A m the HP C1599A is identical to the HP C1539A m the HP C5648A is identical to the HP C1557A m the HP C5737A is identical to the HP C1536A The inclusion of a particular drive or autoloader in this document does not imply that that drive or autoloader is currently available The Purpose of this Manual This manual provides a comprehensive introduction to HP DDS drives E HP C1534A DDS 1 Drive with a capacity of 2 gigabytes E HP C1536A HP C5737A DDS 1 Drive with a capacity of 4 gigabytes using 2 1 data compression m HP C1533A DDS 2 Drive with a capacity of 8 gigabytes using 2 1 data compression E HP C1539A HP C1599A DDS 2 Drive with a capacity of 8 gigabytes using 2 1 data compression E HP C1553
12. FH 5 FH 3 HH 5 4 FH Format DDS 1 DDS DC DDS 2 DDS 3 DDS 2 DDS 2 DDS 3 DDS 4 DDS 4 DCLZ Data Compression No Yes Yes Yes Yes Yes Yes Yes Yes Capacity with 2 1 data compression where supported DDS 1 60m 1 3 GB 2 6 GB 2 6 GB 2 6 GB 2 6 GB 15 6 GB 15 6 GB n s n s DDS 1 90m 2 0 GB 4 0 GB 4 0 GB 4 0 GB 4 0 GB 24 GB 24 0 GB 4 0 GB 24 GB DDS 2 120m n s n s 8 0 GB 8 0 GB 8 0 GB 48 GB 48 0 GB 8 0 GB 48 GB DDS 3 125m n s n s n s 24 0 GB n s n s 144 0 GB 24 0 Gb 144 GB DDS 4 150m n s n s n s n s n s n s n s 40 0 Gb 240 GB Maximum Sustained Transfer Rate no compression 183 KB s 183KB s 510 KB s 1 MB s 510 KB s 510 KB s 1 MB s 3 MB s 3 MB s 2 1 compression n s 366 KB s 1 02 MB s 2 MB s 1 02 MB s 1 02 MB s 2 MB s 6 MB s 6 MB s Error Rate lt 1 in 101 lt 1 in 10 lt 1in 10 lt 1 in 10 lt 1tin101 lt 1 in 10 lt 1 in 10 lt 1 in 101 lt 1 in 101 Data Buffer 512 KB 512 KB 1 MB 2MB 1 MB 1MB 2 MB 8 MB 8 MB Firmware upgrade via Yes Yes Yes Yes Yes Yes Yes Yes Yes SCSI or cartridge Read after write RAW Yes Yes Yes Yes Yes Yes Yes Yes Yes Interface SE narrow SCSI 2 Yes Yes Yes Yes Yes Yes Yes Yes Yes Ultra wide LVD and SE multi mode SCSI No No No No No No No No No MTBF Hours 200 000 200 000 200 000 200 000 300 000 40 000 55 000 400 000 100 000 Duty cycle 5 5 12 12 12 30 30 12 30 n s not supported SE Single Ended 1 2 Edition 8 December 1999 Introduction DDS Formats and Compat
13. The Load Tape button A liquid crystal display LCD Three lights LEDs the Magazine Present light the Operator Attention light and the Tape Activity light 4 2 Edition 8 December 1999 Operation Autoloaders Front Panel Front Panel Buttons Select Button The Select button allows you to select any of the cartridges in the magazine after the magazine has been autoloaded into the unit If you press the Select button repeatedly the display cycles through the cartridges available in the magazine You then press the Load Tape button to load the selected cartridge In Random mode the Select button is disabled Load Tape Button Use the Load Tape button to load the selected cartridge from the magazine into the drive This puts the drive into Stacker mode when the selected cartridge is ejected following a host UNLOAD command the drive will automatically load the next highest numbered cartridge In Random mode the Load Tape button is disabled Eject Button The Eject Button starts the unload process The drive unloads any currently loaded cartridge and the changer mechanism returns the cartridge to the magazine The magazine is then ejected The button can also be used to force ejection in an emergency See Forcing Ejection on page 4 9 Note The host computer can disable the Eject Button by sending a SCSI PREVENT MEDIA REMOVAL command Front Panel Liquid Crystal Display LCD The five display regions of the
14. Try again with a smaller partition 1 or if possible a longer tape Press the Eject button The drive is reading data from the tape A read has failed The host should reposition and try again The drive is rewinding the tape to the beginning of partition A SCSI command error has been detected Action Check the SCSI interface connection and try again The drive is searching for a record filemark setmark or BOD Beginning of Data towards the beginning of the tape in SCSI terms it is responding to a SPACE command with a negative Count field The drive is searching for a record filemark setmark or EOD End of Data towards the end of the tape in SCSI terms it is responding to a SPACE command with a positive Count field Tape selection is locked SCSI PREVENT MEDIUM REMOVAL is in operation This is displayed when you press the Select button and for a short time after the button is released The autoloader is performing its power on self test A cartridge is in the drive but not loaded the tape has not been threaded There is a cartridge in the autoloader but there is no magazine present to put it in Action Insert an empty magazine to retrieve the cartridge The cartridge in the drive is faulty possibly because the tape has snapped or the cartridge has an invalid pattern of identification holes Action Use a new cartridge and ensure that it is Media Recognition System A READ SPACE WRITE or WRITE FILEM
15. emergency removal 6 3 forcing ejection 4 9 inserting 4 6 loading cartridges in 4 6 ordering 1 7 Magazine Present light 4 4 maintenance 2 media 5 1 life expectancy 5 4 specifications 8 4 Media Caution signal 3 2 3 5 Media Recognition System 2 10 3 3 4 6 5 3 A 3 Glos 2 Medium Changer commands 1 4 7 2 message information 4 6 messages error 4 6 SCSI supported 7 2 shown on LCD 4 4 4 11 status 4 5 types 4 11 mode pages 7 5 MOVE MEDIUM 4 10 MRS see Media Recognition System MTBF 1 2 9 2 A 6 N narrow SCSI Glos 4 N Group writing 1 3 Glos 3 number codes on front panel 4 11 O offline Glos 3 online 3 3 Glos 3 operation autoloader 4 1 drives 1 Operator Attention Required light 4 4 4 6 4 8 4 9 4 11 option switches autoloader ordering supplies 1 7 orientation of the autoloader 8 2 P packaging 8 3 partitions Glos passive termination 1 8 PCM A 3 performance specification 10 1 physical specification 8 2 power connection 2 2 consumption A 5 extender 2 4 requirements 8 5 A 5 power fail handling 10 3 Edition 8 December 1999 PREVENT MEDIA REMOVAL PRML problems prolongin head life random mode randomizing RAW retry limit rear panel autoloader drives records related documents reliability replaceable parts reposition time retries limits rewrites retry limit S safety SCSI 1 6 7 1 Glos 3 Glo N N Q AS o a m 1 O o 1
16. example a DDS 2 drive can read and write DDS 1 tapes Note that it will use DDS 1 format so the full advantage of DDS 2 will be lost Drives are not forward compatible so for example a DDS 2 drive cannot read or write a DDS 3 tape It will simply eject it The following table summarizes which drive can write and read which tapes The capacities given are those that can typically be obtained using data compression DC where possible They assume a compression ration of 2 1 Capacities are for a single cartridge 5 2 Edition 8 December 1999 DDS 1 60m HP C1534A Yes not DC 1 3 GB Yes not DC 2 GB Cartridges Choosing Cartridges Cartridge Types DDS 1 90m DDS 2 120m DDS 3 125m DDS 4 150m HP C1536A Yes 2 6 GB Yes 4GB HP C1533A HP C1539A HP C1553A Yes 2 6 GB Yes 4GB HP C1537A HP C1557A 2 6 GB Yes 4 GB 24 GB HP C5683A HP C5713A Yes 4GB Yes 24 GB read only Yes cartridge can be read and written to in the format ofthe tape unless stated otherwise No cartridge will be ejected and so can neither be read nor written to DDS Logo Media To identify computer grade DDS media easily look for the DDS logos These indicate that the media meets the DDS specifications laid down by the ECMA ISO IEC and ANSI standards see chapter 1 The DDS 1 DDS 2 and DDS 3 logos are show in figure 5 1 Figure 5 1 DDS logos DDS 3 Logo DDS DDS 1 Logo DI Digital DS
17. pa S Fi J gt 1 a mr o co en gt T du o 23 commands supported connection and termination HP C1533A 53A HP C1534A 36A HP C1537A documents ID HP C1533A 53A 37A 2 6 HP C1534A 36A interface Medium Changer commands messages supported ordering accessories termination SE search speed Select button self test time taken during sequential access Sequential Access command set sequential mode service setmarks shock 2 AS N N gt N 1 00 1 O N L N iN N N 1 N j 1 00 Q pu o a Oo H Q Q un re zi 09 o a Qa a gt f O S i de S m gt amp Palak D A ES E are NIN do la single ended Glos 3 combining with LVD devices 2 7 single ended SCSI Glos 4 specifications EMC 8 4 environmental 8 3 A 6 media 8 4 performance 10 1 physical 8 2 speed fast search A 4 search A 6 tape A 4 stabilizing 5 5 Glos 4 stacker mode 4 2 Glos 5 status codes 7 3 status messages 4 5 storage box 1 7 stuck cartridge or magazine 6 3 SUN 2 9 supplies 17 supported commands 7 3 suspended particles 8 3 switches autoloader option 2 2 2 3 configuration 2 9 synchronous data transfer 7 2 Glos 1 system area Glos 5 T tape format identifying 4 8 guides A 4 life expentancy 5 4 speed A 4 stabilizing 5 5 Tape Activi
18. 2 7 Mixing SE and LVD Ultra and Ultra2 SCSI Devices 2 7 Setting the SCSIID 2 7 Data Compression Control 2 8 Termination Power 2 8 Configuration Switches 2 9 Data Compression not HP C1534A 2 9 Media Recognition System MRS 2 10 Switches 4to8 2 10 Autoloader Option Switches 2 10 Fixing Requirements 2 12 Airflow and Cooling Requirements 2 13 Operation Drives Front Panel 3 2 Media Caution Signal 3 2 Loading and Unloading 3 3 Inserting Cartridges 3 3 Removing Cartridges 3 4 Forcing the Ejection of a Cartridge 3 4 Taking Care of the Drive 3 5 Head Cleaning 3 5 Prolonging Head Life 3 5 Temperature and Condensation 3 6 Removing Power from the Drive 3 6 Upgrading Firmware from Tape 3 6 Edition 8 December 1999 Contents 1 4 Operation Autoloaders Modes of Operation 4 2 Front Panel 4 2 Front Panel Buttons 4 3 Front Panel Liquid Crystal Display LCD 4 3 Front Panel Lights 4 4 LCD Messages Categories 4 4 Loading the Magazine and Cartridges 4 6 Ejecting the Magazine and Cartridges 4 8 Forcing Ejection 4 9 Head Cleaning 4 9 Avoiding Condensation 4 11 LCD Messages 4 11 Number Codes HP5713A only 4 11 Localizing the Display HP C5713A only 4 15 Upgrading Firmware from Tape 4 16 Self Test 4 17 Replaceable Parts 4 17 5 Cartridges DDS Formats 5 2 Choosing Cartridges 5 2 Write Protecting a Cartridge 5 4 Life Expectancy of Tapes 5 4 Humidity 5 5 Using Labels 5 5 6 Troubleshooting General Procedure 6 2
19. 68 way terminated LVD SE Ultra2 quality conductor for DDS 4 drives 1m the connector comes as part of the cable 92222D SCSI extender cable 1252 3251 SCSI bus passive terminator K2291 SCSI bus active terminator 1252 5634 SCSI bus SLICK active terminator for HP NetServers You should use active termination on the SCSI bus for devices which support a transfer rate of more than 5 MB s or when there is any such device on the bus It is possible to use HP DDS drives at 5 MB s in which case passive termination is a possibility However HP recommends that you use of active termination in all cases 1 8 Edition 8 December 1999 Installation Edition 8 December 1999 2 1 Installation Power Connection Power Connection The power connections are shown in figures 2 1 and 2 3 for drives and figures 2 2 and 2 4 for autoloaders Figure 2 1 Power connections pre DDS 4 drives Rear of Drive 5V 12V 5V gnd 12V gnd Figure 2 2 Power connections pre DDS 4 autoloaders 5V 5V gnd 12V gnd 12V Changer Rear of the embedded drive power Figure 2 3 Power connections DDS 4 drives Rear of Drive rrrrrrrrrrrrrrrrrrrerrerrrrrrrrrrrrr rrrrrrrrrrerrrrrrrrrrerrerrrrrrrrrrr 2 2 Edition 8 December 1999 Installation Grounding Figure 2 4 Power connections pre DDS 4 autoloaders Autoloader option switches 5V 5V
20. DDS 1 format plus an extension to include data compression as follows a Compressed data can be stored in a way that maintains the full functionality of the DDS format and ensures backwards compatibility with existing DDS drives a Any DDS 1 and DDS DC cartridge can be read whether data compression is switched on or off a Data is automatically decompressed on reading even if data compression is switched off a Mixing compressed and uncompressed data is supported This means that a cartridge can be written with uncompressed data and read in any DDS drive Tapes are used as follows DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 DDS 1 DDS 1 not supported not supported not supported Edition 8 December 1999 1 3 Introduction DDS Formats and Compatibility HP C1533A and HP C1539A HP C1599A The HP C1533A and HP C1539A implement the DDS 2 format This includes all of the features of the DDS 1 and DDS DC formats plus the ability to read and write with much higher capacity when using DDS 2 cartridges The drives read and write using DDS 1 format when using DDS 1 media 60m and 90m The HP C1539A has a TapeAlert feature that allows software and operating systems to warn users of problems which may occur such as a cartridge nearing the end of its useful life and to recommend actions that the user can take to recover from the situation The drive also has an improved internal clean
21. S VS The drive is being upgraded with the new firmware The cartridge loaded in the drive mechanism is a firmware upgrade tape cartridge Firmware upgrade data is being read from a tape A firmware upgrade failed because of an error in reading data from the tape Action Try again If it still fails call for service A firmware upgrade failed because the tape is write protected Action Change the write protect switch on the tape and try again A firmware upgrade failed because of an error in writing a modified upgrade count to the tape Action Try again If it still fails call for service The autoloader is waiting for you to insert a magazine A load command has failed or a load or change partitions command has failed to read the System area of the tape whcih stores information about tape usage Action Use a new cartridge A load command has failed or a load or change partitions command has failed to read the System area of the tape whcih stores information about tape usage Action Press the Eject button Manual loading is locked PREVENT MEDIA REMOVAL is in operation This is displayed when you press the Load Cartridge button Hither a cartridge is being moved from the magazine and placed into the drive mechanism or the drive is loading a cartridge The drive is moving the tape to a point specified by the host The autoloader is examining the magazine to determine which slots are occupied The autoloader i
22. System cartridge C5707A 125m DDS 2 Media Recognition System cartridge C5706A 90m DDS 1 Media Recognition System cartridge C5705A 60m DDS 1 Media Recognition System cartridge C5709A Cleaning cartridge 92283L Lockable storage box for 12 cartridges C1571A Magazine for the HP C1553A HP C1557A and HP C5713A autoloaders C1572A Autoloader magazine complete with five DDS 2 cartridges and one cleaning cartridge C15570 Autoloader magazine complete with five DDS 3 cartridges and one cleaning cartridge C7436A Autoloader magazine complete with five DDS 4 cartridges and one cleaning cartridge Edition 8 December 1999 1 7 Introduction Ordering Supplies SCSI Accessories 92222A SCSI interface cable low to low density connectors 0 5m 92222B SCSI interface cable low to low density connectors 1 0m 92222C SCSI interface cable low to low density connectors 2 0m K2296 SCSI interface cable high to low density connectors 0 9m K2297 SCSI interface cable high to low density connectors 1 5m C5743A SCSI interface cable 68 pin high to 68 pin high density connectors LVD SE Ultra2 quality conductors for DDS 4 drives 2 5m C5742A SCSlIinterface cable 68 pin high to 68 pin high density connectors LVD SE Ultra2 quality conductors for DDS 4 drives 1 5m C5741A SCSI interface cable 68 pin high to 68 pin high density connectors LVD SE Ultra2 quality conductors for DDS 4 drives 0 9m C7424A Internal SCSI cable 4 connector
23. a device is granted its request it and the target to which it wants to send information can transfer the data using one of three protocols assuming both devices support them asynchronous synchronous and wide In asynchronous transfers the target controls the flow of data The initiator can only send data when the target has acknowledged receipt of the previous packet All SCSI devices must support asynchronous transfer In synchronous data transfer the initiator and target work in synchronization allowing transmission of a packet of data to start before acknowledgment of the previous transmission In wide data transfer two bytes are transferred at the same time instead of a single byte HP DDS drives support asynchronous synchronous and 8 bit wide transfers Edition 8 December 1999 Glossary 1 DCLZ DDS differential ECC ECMA EOD fast searching filemark forced ejection FRU host load LVD magazine Media Recognition System MRS Data Compression Lempel Ziv A compression algorithm based on the Lempel Ziv LZ2 LZW algorithms but with improved performance Digital Data Storage is a recording format that builds on the DAT format to support the storage of computer data It was developed originally by Hewlett Packard and Sony as an industry standard The first generation standard was DDS 1 or simply DDS to which was added data compression to produce the DDS DC standard Further enhancements notabl
24. can be configured to provide power by setting a jumper on the rear panel see Figure 2 6 Terminators can be of two types active and passive Active termination is recommended for a bus that has the tape drive on it because although more expensive it ensures better and more secure performance A technique of ensuring that the read head stays in the center of the track that it is reading The drive measures the time it takes to reach a particular point on the track and ifthis time is less than or greater than its expected value the drive adjusts the tape speed to compensate In HP s DDS 3 and DDS 4 drives time tracking replaces the Automatic Track Following ATF used in DDS 1 and DDS 2 drives and allows more of each track to be available for data storage DDS 3 and DDS 4 drives still write ATF signals on DDS 1 and DDS 2 tapes to ensure full backward compatibility The rate at which data is transferred from one device to another for example from the host computer to the tape drive during backup The addition of commands to SCSI that are not included in the standard Edition 8 December 1999 Glossary 5 Edition 8 December 1999 Index A acceptability 8 7 acoustic noise emissions 8 3 active termination 1 8 Activity light 3 2 airflow 2 13 monitoring 2 13 algorithms Lempel Ziv Glos allow resequencing 2 11 altitude 8 3 ANSI 1 6 Glos 1 application software 2 9 asynchronous data transfer 7
25. can only be returned to its original source slot in the magazine Prolonging Head Life Drives are optimized to achieve the best performance possible and a typical head life in excess of 6000 hours This figure assumes that you use the appropriate tape 4 10 Edition 8 December 1999 Note Operation Autoloaders Avoiding Condensation for the drive such as DDS 4 media with DDS 4 drives and that you follow a typical usage pattern You may not attain the typical head life when m You use an older tape format such as DDS 2 tapes with a DDS 3 drive m A large proportion of cartridges loaded are being used for the first time Avoiding Condensation Condensation is bad for tape drives where a thin tape is passing across a rapidly spinning head To minimize the risk of condensation keep to the environmental requirements on page 8 3 To avoid temperature problems follow these guidelines m Position the autoloader in a position where the temperature is relatively stable for example away from open windows fan heaters and doors m Avoid leaving cartridges in severe temperature conditions for example in a car standing in bright sunlight m Avoid transferring data reading from and writing to cartridges when the temperature is changing by more than 10 C 50 F per hour m After either cartridge or autoloader has experienced an extreme change of temperature more than 15 C 59 F do not use the autoloader for at least
26. can take between 30 seconds and 2 minutes HP 1534A 36A drives with firmware version T503 do not load or save the Tape log so their load and unload times are less 10 2 Edition 8 December 1999 Performance Specification Autoloader Swap Times The average cartridge swap time is 15 seconds where a swap is defined as follows 1 The drive rewinds the cartridge and unloads it 2 The changer mechanism returns the cartridge to the magazine 3 The changer selects another cartridge from the magazine and transfers it to the drive 4 The drive loads the new cartridge The actual time will depend on the position in the magazine Retries Limits on Rewrites For Read After Write rewrites each frame can be rewritten up to a maximum of 127 times giving 128 writes ofthe frame In addition the total number of frame rewrites within one group is 128 Power Fail Handling Ifthere is a power fail the drive performs the following actions and reverts to its default configuration when power is restored 1 The drive executes the Power Up sequence of self tests 2 Ifa tape is present it is threaded with the usual load sequence 3 The drive fails the next host command and returns a CHECK CONDITION status The host should then send a REQUEST SENSE command The drive responds with the UNIT ATTENTION sense key and sets the Additional Sense bytes to indicate that the drive has been power cycled Edition 8 December 1999 10 3 Performan
27. conditions are as follows 5 4 Edition 8 December 1999 Cartridges Humidity m Environmental Conditions Sustained use at the low end ofthe humidity specification will reduce the tape life m Computer Performance The lower the performance of the computer the more likely that streaming cannot be maintained and that an increase in the number of passes over given areas of tape will occur m Backup Software Package The backup package may access certain areas of tape frequently or there may be a high system overhead that may cause streaming to stop Both of these factors increase the number oftape passes in a given area Because these parameters vary from system to system it is difficult to give a definitive statement of the number of backup operations achievable using a particular tape As a guideline we recommend that you limit the use of a tape to around 75 backup operations in worst case conditions of the following m Environment sustained low humidity m Computer Performance streaming failures m Backup Software Package accessing certain tape areas frequently or causing streaming failure Humidity To avoid condensation problems allow a tape to stabilize after it has been moved from one temperature and humidity to another for at least two hours before you use it Using Labels Cartridge and magazine labels must be firmly stuck to the recessed label area and nowhere else To avoid a mechanism jam observe the
28. connectors 2 Clean the tape heads with the cleaning cartridge 3 Ifthe problem persists check the environmental conditions against the specified limits Perhaps move the drive to a more suitable site m Has a new operating system been installed in the host computer Has new backup software been installed The problem could lie with the host or the software Consult the computer s operating manuals the software manual or seek help from a service engineer 6 2 Edition 8 December 1999 Troubleshooting Emergency Removal of a Magazine or Cartridge autoloaders only Emergency Removal of a Magazine or Cartridge autoloaders only Caution This procedure should only be performed by a qualified service engineer Considerable care is required and full anti static precautions must be taken Warranty conditions may be violated In the event of a mechanical jam the LCD will display Error x If the actions proposed on page 4 12 fail to clear the jam and if you must remove the magazine or cartridge then use the following procedure 1 Power down the system and remove the autoloader Place it upside down on a bench 2 Unscrew the securing bracket at the rear ofthe autoloader that fixes the drive mechanism in the autoloader 2 screws see figure 6 1 Note You cannot remove the bracket fully until after step 3 ta Pr 3 Gently pull upwards on the drive mechanism by gripping the SCSI connector The drive will rotate
29. enabled You can use a combination of Ultra and Ultra2 devices Each device will operate at its optimum speed Setting the SCSI ID The SCSI ID is set using jumpers on the set of pins beside the SCSI connector at the rear of the drive as shown in figure 2 8 Edition 8 December 1999 2 7 Installation SCSI Connection and Termination DDS 4 drives only Figure 2 8 Rear panel of the HP C5683A C5713A A rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr Compression on off using a control cable bits The three significant bits in the ID give a range of 0 through 15 as follows SCSI ID Bit3 Bit2 Bit1 BitO SCSIID Bit3 Bit2 Bit1 BitO o 0 0 0 0 8 1 0 0 0 1 shorted 1 0 0 0 1 9 1 0 0 1 O open 2 0 0 1 0 10 1 0 1 0 3 0 0 1 1 11 1 0 1 1 4 0 1 0 0 12 1 1 0 0 5 0 1 0 1 13 1 1 0 1 6 0 1 1 0 14 1 1 1 0 7 0 1 1 1 15 1 1 1 1 The drive reads the SCSI ID at power up and during self test Data Compression Control Data compression can be controlled through the jumper pin shown in figure 2 8 The pin is only monitored at power on and controls whether data compression is enabled by default Any subsequent change to the pin is ignored Pin State Unconnected default Connected to OV Effect Data compression is controlled by configuration switches 1 and 2 on the underside of the drive and through the SCSI MODE SELECT command Data compression is d
30. into the drive The autoloader will then automatically perform a cleaning cycle 4 At the end of the cleaning cycle the drive automatically ejects the cartridge and the changer mechanism replaces it in the magazine 5 Note the date on the label on the cleaning cartridge so that there is a record of how many times it has been used After 50 uses discard the cartridge If you decide to leave a cleaning cartridge permanently in the magazine it will reduce the amount of data you can back up to the magazine since you will only have five slots available for data cartridges Cleaning the Heads in Random Mode 1 The host sends a MOVE MEDIUM command to move the cleaning cartridge from the magazine to the drive The autoloader will only recognize that the cartridge is a cleaning cartridge once it is loaded into the drive 2 The drive will then automatically carry out a cleaning cycle 3 The drive automatically ejects the cartridge after the cleaning cycle is complete The changer returns the cartridge to its magazine slot without further host involvement In Random mode the host can program a routine cleaning cycle say once a week The cleaning cartridge remains in a set position such as slot 6 ready for use at the designated time Remember that this will reduce the amount of data you can back up to the magazine since you will only have five slots available for data cartridges Using the SCSI MOVE MEDIUM command a cleaning cartridge
31. is online when a tape is loaded The host has access to all command operations including those that access the tape set configurations and run diagnostic tests A part of a tape that can be treated as a complete and independent whole A tape can have one or two partitions Partial Response Maximum Likelihood a method of recovering data from a signal that can cope with the higher density of data used by the DDS 3 format a linear density of 122 000 bits per inch which is twice that of DDS 1 and DDS 2 The technique not only identifies data bits more accurately but by scanning the bits surrounding a bit being read it can deduce the correct value for dubious bits Autoloaders only In Random mode cartridges are used in order dictated by the host or the user rather than sequentially as in Stacker mode For each cartridge to be used the host must issue a SCSI MOVE MEDIUM command to instruct the autoloader to move the cartridge from the magazine to the drive When the cartridge is full or when no further use is to be made of it the host must again use the MOVE MEDIUM command to load another Random mode is sometimes referred to as Changer mode A recoding of data symbols before they are written to tape in order to provide a consistently high RF envelope level An inconsistent RF envelope is one of the criteria for rewriting a frame on read after write Read after write improves data integrity by reading data immediately after it is wr
32. mechanism replaces the cartridge in the magazine 5 The magazine is ejected If the host sends an Unload command LOAD UNLOAD with the LOAD bit set to 0 the same procedure is followed but the magazine is not ejected at the end If you press the Eject button during the 30 seconds when the autoloader checks magazine slots following insertion of a magazine the magazine will be ejected immediately even if Medium Removal Prevention is in force If the host has previously sent a PREVENT MEDIA REMOVAL command the unloading action is different in two ways m The Eject button is disabled and has no effect It does not initiate an unload sequence m An Unload command puts the drive into the semi loaded state That is it takes the drive offline and unthreads the tape but does not eject it The effects of PREVENT MEDIA REMOVAL continue until an ENABLE MEDIA REMOVAL command is received or the drive is reset 4 8 Edition 8 December 1999 Caution Note Operation Autoloaders Head Cleaning Forcing Ejection You can lose data if you force ejection of a tape The tape may also end up invalidly formatted because EOD End of Data may not have been written Only force ejection as a last resort to recover a cartridge Never use it as a quick way of ejecting the cartridge If you press the Eject button when the drive is busy it may be a long time before the drive will respond to the request because it will finish the task it is pe
33. response to a SCSI LOAD UNLOAD command or if you press the Unload button For either of these methods the drive performs an Unload sequence 1 The tape is rewound to BOP for Partition 0 2 Ifthe tape is write enabled the copy of the Tape log is written back to tape This does not occur for HP C1534A 36A drives with firmware version T503 3 The tape is then rewound to BOM unthreaded from the mechanism and ejected If the host has previously sent a PREVENT MEDIA REMOVAL command operation of the Unload button is disabled pressing the button has no effect and does not initiate an Unload sequence The Unload button returns to normal operation when the drive receives an ENABLE MEDIA REMOVAL command or a SCSI reset Forcing the Ejection of a Cartridge Only force ejection as a last resort to recover a cartridge Never use it as a quick way of ejecting the cartridge You may lose data if you force ejection The tape can also end up invalidly formatted because EOD may not have been written If you press the Unload button when the drive is busy it may be a long time before the drive will respond to the request because it must first finish the task on which it is engaged This ensures that the task is terminated in a controlled manner and no data is lost However there may be occasions when you need to unload a cartridge urgently even at the risk of losing data To do this you must force ejection There are two ways of doing this
34. that an autoloader or drive will reformat it for normal data use although given the amount of use it will have had it is not advisable to use it for data m You cannot otherwise convert a firmware upgrade tape for normal data use 1 Ensure that the drive is not engaged in any SCSI activity the Tape Activity light is off and the host is not going to be accessing the drive 2 Place the Firmware Upgrade tape into magazine slot 1 and insert the magazine into the autoloader 3 Use the front panel Select button to select magazine slot 1 4 Press the Load Tape button to load the upgrade tape into the drive The autoloader will then automatically upgrade the firmware It is critically important that you do not power down the drive during this 5 When the LCD shows the message New Fw the firmware has been successfully upgraded and the upgrade tape has been returned to the magazine Press the Eject button to eject the magazine Remove the Firmware Upgrade tape and replace it in its box Upgrade Tapes for Multiple Drives From late 1995 autoloaders and drives will begin to be able to support tapes that contain upgrades for more than one drive When the upgrade tape is inserted the drive reads successive upgrades from the tape until it reaches one that matches its hardware It will then upgrade the firmware The whole process will take about 15 seconds longer for each upgrade version that needs to be skipped If you insert a ta
35. the host to configure the drive setting Immediate Mode Read after Write C3 Error Correction N Group Writing managing the number and size of partitions and changing the active partition N Group writing is not supported on the HP C1537A Edition 8 December 1999 7 3 Interface Implementation Supported Commands Opcode Command 16h 17h 19h 1Ah 1Bh 1Bh 1Ch 1Dh 1Eh 1Eh 1Fh 2Bh 34h 3Bh 3Ch 4Ch 4Dh A5h B8h RESERVE UNIT RELEASE UNIT ERASE MODE SENSE LOAD UNLOAD Enhanced LOAD UNLOAD RECEIVE DIAG RESULTS SEND DIAGNOSTIC PREVENT MEDIA REMOVAL Enhanced PREVENT MEDIA REMOVAL MEDIA CENSUS LOCATE READ POSITION WRITE BUFFER READ BUFFER LOG SELECT LOG SENSE MOVE MEDIUM READ ELEMENT STATUS Description Reserves the drive for the exclusive use of the initiator or for another specified SCSI device Releases the drive if it is currently reserved by the initiator Third party release is supported Erases part or all of the remaining data within a partition beginning at the current logical position Allows the drive to report its current configuration Tells the drive to load or unload a cartridge Unload at EOD and retensioning are not supported Autoloaders only A vendor unique version of LOAD UNLOAD which allows hosts that do not support different LUNs and the Medium Changer command set to operate with the autoloader It allows the host to specif
36. the next functional state State Messages Reset Firmware Magazine Load Cartridge Load Tape Upgrade Motion Self Test Test OK FW Upgrade FW Check FW Program New FW No Upgrade Insert Mag Mag Check Mag Eject Mag Loaded Mag Loaded SemiLoaded Loading Unloading Cleaning FW Tape Tape Loaded Ready xxm Read Write x y Search gt gt Search lt lt Rewind Format Erase Locate Partition Edition 8 December 1999 4 5 Caution Note Operation Autoloaders Loading the Magazine and Cartridges Error Messages The LCD can display a range of error messages relating to the autoloader s operation If a fault has been detected with the mechanism or loss of data may result the error message may be accompanied by the Operator Attention Required light being lit or flashing This is indicated in the OAR column in the alphabetical list of messages on page 4 11 Where possible actions that you can take to recover from the error are also given For further information on errors see Chapter 6 Troubleshooting Information Messages Informational messages are displayed when power is applied to the autoloader They indicate its identity SCSI ID and configuration They also tell you when you have pressed the front panel buttons to confirm that the autoloader has recognized the action Loading the Magazine and Cartridges Use the correct cartridges m Only use cartridges labe
37. transfer A section in the Lead in Area at the beginning of a partition used to store the tape usage information The Tape log contains details ofthe history of a tape the total number of groups written of RAW retries of groups read of C3 ECC retries and of loads The log is copied into RAM when the tape is loaded into the drive updated as the tape is used and loaded back into the System area on the tape when it is unloaded Note For HP C1534A 36A drives firmware version T503 the Tape log is neither loaded from tape nor copied back when the tape is unloaded The TapeAlert log holds a set of flags that indicate faults with the drive or tape For example the Not Data Grade flag is set to indicate that the drive has detected that a tape that is not Media Recognition System is loaded By reading this log host software or the operating system can inform users of existing or impending conditions and can give advice For example the software might recommend that you use a new tape or clean the heads A SCSI bus or cable can have many devices plugged into it but the end of the cable furthest from the host computer must always be terminated to avoid signals being reflected back and interfering with other signals The terminator both absorbs signals and provides power to the lines in the cable For this reason it must itself be provided with power a The HP C1534A 36A are permanently configured to provide such power Q The other drives
38. up pivoting from the front face see figure 6 2 As the drive starts to pivot it reaches a position where you can remove the securing bracket Figure 6 2 Rear view lifting the drive and removing the magazine front face of drive Edition 8 December 1999 6 3 Troubleshooting Emergency Removal of a Magazine or Cartridge autoloaders only 4 After removing the bracket rotate the drive fully forward exposing the magazine area Remove the magazine by gently lifting it away from the spring loaded pusher bar This is located on the right side looking from the rear 5 Ifa cartridge remains jammed in the drive proceed as follows a Disconnect the red interface cable from the pivoted front face of the drive the DAI interface cable see figures 6 2 and 6 3 b Remove the top lid of the drive mechanism 4 screws c Insert a 1 5 mm hexagonal key or a small crosspoint Posidrive 0 screwdriver into the aperture on the right side of the drive looking from rear This gives you access to the motor worm wheel as shown in figure 6 3 Turn the hexagonal key or small crosspoint screwdriver anticlockwise to release the cartridge this may take more than 1000 turns Figure 6 3 Turning the motor worm wheel to release the cartridge Red interface cable connects here Kx front face gt of drive 4 To reassemble the autoloader the steps are almost the reverse of the above procedure a Place the lid correctly on the drive mech
39. 0555 3 1982 after 1 Jan 2001 EN 61000 3 3 1995 IEC 61000 3 3 1994 Immunities before 1 Jul 2001 EN 50082 1 1992 IEC 801 2 1991 IEC 801 3 1984 IEC 801 4 1988 after 1 Jul 2001 EN 55024 1998 CISPR 24 1997 IEC 61000 4 2 1995 IEC 61000 4 3 1995 IEC 61000 4 4 1995 IEC 61000 4 5 1995 IEC 61000 4 6 1996 IEC 61000 4 8 1993 IEC 61000 4 11 1994 Media Specifications Parameter Specification Storage Temperature 5 C to 32 C Humidity 20 RH to 60 RH Wet Bulb Temp 26 C max Transportation Temperature 40 C to 45 C recommended Humidity 5 RH to 80 RH Wet Bulb Temp 26 C max 8 4 Edition 8 December 1999 Physical and Safety Specifications Power Requirements Power Requirements The power requirements are as follows m 5V 5 Ripple lt 150 mV peak peak lt 100 mV peak peak for the HP C1533A and HP C1553A m 12V 10 5 for drives other than the HP C1537A when programming EEPROM Ripple lt 150 mV peak peak On powering up both supplies should come up within 1 second of each other On powering down the 12V supply should be maintained within 10 limit until the 5V supply drops below 4 5V The specified ratings are as follows 5V supply 12V supply HP C1534 36A Typical Operation Worst Case Peaks lt 1s HP C1533A Typical Operation Worst Case Peaks lt 1s HP C1537A Typical Operation Worst Case Peaks lt 2s HP C1539A Typical Operation Worst Case Peaks lt 1s HP C5683A Typical Opera
40. 1995 3 LOG SENSE The HP C1534 and HP C1536A do not support the following Log Pages a Read and Write Error Counters a Write and Read Frames Error Counter Pages a Bad Group Log Page Drive Counters a Mechanism Counters For early versions of the firmware the Tape log is not updated on unloading 4 LOGSENSE HP C1539A DDS 3 and DDS 4 drives support the TapeAlert Log page and the Read Retry Log page 5 READ BUFFER Drive Failure Codes in EEPROM The HP 35470 80A return information in 10 byte slots The HP C1534 36A use the same format as the DDS 2 DDS 3 and DDS 4 drives and return information in 3 byte slots 6 REQUEST SENSE The data length is 19 bytes for the HP 35470 80A and 22 bytes for the HP C1534 36A 7 REQUEST SENSE Some vendor unique drive error codes in byte 17 have different definitions for different drives 8 MODE SELECT Disconnect Reconnect Page The Bus Inactivity default value is 39h for the HP 35470 80A and 38h for the HP C1534 36A Edition 8 December 1999 Appendix A 7 Edition 8 December 1999 ANSI asynchronous autoload autoloader block BOM BOP C3 ECC changer checksum compression DAT data randomizer data transfer phase Glossary American National Standards Institute which sets standards for SCSI and the safety of electrical devices amongst other things see data transfer When a tape cartridge is inserted a tape drive with autoload will automa
41. 2 Glos 1 Attention light 3 2 3 5 auto eject 2 11 autoloader 1 4 Glos 1 connections 2 2 fixing points 2 12 front panel 4 2 grounding 2 3 operating 4 1 option switches 2 2 2 3 2 10 orientation 8 2 random mode 4 2 stacker mode 4 2 swap times 10 3 autoloading Glos 1 auto stack 2 11 B background to DDS products 1 6 backup software problems 6 2 blocks Glos 1 BOM 3 3 4 8 Glos 1 BOP 3 3 4 8 Glos 1 buffer data 1 2 A 6 buttons Eject 4 3 4 9 Load Tape 4 3 Select 4 3 Unload 3 2 3 4 Cc C3 ECC 1 3 Glos 1 cables 2 4 ordering 1 8 SCSI 2 5 2 7 capacity 1 2 10 2 A 3 cartridges 5 1 choosing 5 2 cleaning 3 5 compatibility 5 2 emergency removal 6 3 forcing ejection 3 4 4 9 inserting 3 3 loading in magazine 4 6 ordering 1 7 problems 6 2 removing 3 4 stabilizing Glos 4 types supported 5 3 A 3 changer mechanism Glos life expectancy 9 2 changer mode 4 2 checksum 1 3 Glos 1 cleaning cartridge 3 5 4 9 cleaning heads autoloader 4 9 drives 3 5 commands supported 7 3 compatibility cartridges 5 2 electromagnetic 8 4 compression see data compression condensation 3 6 4 11 5 5 conditions of acceptability 8 7 Configuration Guide 1 6 configuration switches 2 9 connection power 2 2 SCSI HP C1533A 53A 2 5 2 7 HP C1534A 36A 2 4 HP C1537A 2 6 2 8 connectors SCSI 2 4 2 5 2 7 cooling 2 13 A 4 CSA 8 7 D DAT Glos 1 cartridges 3 3 4 6 Edition 8 December 1999 data
42. 2 ips 23 39 mm s 0 92 ips Fast search tape speed multiple of normal speed 100x 100x 70x DDS 1 105x DDS 2 100x DDS 3 70x DDS 1 105x DDS 2 70x DDS 1 105x DDS 2 100x DDS 3 68 4 68 4 Drum speed reading and writing 2000 rpm 2000 rpm 5737 rpm 3825 rpm DDS 3 5737 rpm 5737 rpm 3825 rpm DDS 3 11479 rpm DDS 4 11479 rpm DDS 4 Windowless drum Yes Yes No No No No Yes Yes Forced air cooling recommended No No No 1 cu ft min 1 cu ft min Edition 8 December 1999 Appendix A 4 Electrical HP 35470A Power requirements 5V 45 12V 10 HP 35480A 5V 15 12V 110 HP C1534A 5V 1 5 12V 10 HP C1536A 5V 5 12V 10 HP C1533A 5V 15 12V 1 5 HP C1537A 5V 15 12V 15 HP C1539A 5V 1 5 12V 10 HP C1553A 5V 15 12V 10 HP C1557A 5V 5 12V 10 HP C5683A 5V 15 12V 45 HP C5713A 5V 5 12V 10 5V current typical 0 6A operation 0 6A 0 6A 0 6A lt 1 2A 0 95A lt 0 65A lt 1 2A lt 0 75A lt 1 2A lt 0 75A 0 5A 0 5A2 lt 0 63A 5V current worst case 0 6A peaks lt 1s 0 6A 0 8A 0 8A 1 2A 0 95A 1 0A 1 2A 0 75A 1 2A2 0 75A 0 85A 0 85A 0 75A 5V power supply noise lt 0 15V amp ripple peak to peak
43. 3 Digital Data Data Storage Storage Digital Digital D Data DDS 2 Logo lb 4 Data Storage Storage The Media Recognition System MRS enables drives to identify DDS grade media DDS MRS cartridges have a series of stripes on the transparent leader at the beginning ofthe tape HP drives can be configured to treat non MRS tapes as write protected In other words the drive will only be allowed to read non MRS cartridges not write to them DDS 4 Logo DDS 1 MRS tapes can be recognized by the logo in figure 5 2 MRS is used on all DDS 2 and DDS 3 tapes with the logos shown in figure 5 1 Figure 5 2 DDS Media Recognition System logo Digital Data Storage Media Recognition System Cartridges with the old DDS 1 logo as shown in figure 5 1 are in no way inferior they simply do not carry the stripes on the leader tape so the drive cannot recognize them as DDS quality All DDS cartridges produced from early 1993 should have the Media Recognition System stripes HP cartridges have the same part numbers as before In order to configure the drive to write to the old DDS cartridges figure 5 1 see Configuration Switches on page 2 9 Edition 8 December 1999 5 3 Cartridges Write Protecting a Cartridge Prolonging Head Life Drives are optimized to achieve the best performance possible and a typical head life in excess of 6000 hours This figure assumes that you use the appropriate tape for the drive such as DDS 4 media wi
44. A DDS 2 Autoloader with a capacity of 48 gigabytes using 2 1 data compression E HP C1537A HP C1554A DDS 3 Drive with a capacity of 24 gigabytes using 2 1 data compression E HP C1557A HP C5648A DDS 3 Autoloader with a capacity of 144 gigabytes using 2 1 data compression m HP C5683A DDS 4 Drive with a capacity of 40 gigabytes using 2 1 data comprssion E HP C5713A DDS 4 Autoloader with a capacity of 240 gigabytes using 2 1 data compression It gives details of how to install and operate the drives and contains full specifications of all the drives Further information is available in volumes 2 5 of the HP DDS Technical Manual E Volume 2 Integration Guide m Volume 3 The SCSI Interface m Volume 4 Background to DDS Products E Volume 5 DDS UNIX Configuration Guide See Chapter 1 for details of these and other documents Edition 8 December 1999 Intro 3 Intro 4 Edition 8 December 1999 Contents Introduction HP DDS Drives 1 2 DDS Formats and Compatibility 1 3 Related Documents 1 6 Ordering Supplies 1 7 SCSI Accessories 1 8 Installation Power Connection 2 2 Grounding 2 3 SCSI Connection and Termination DDS 1 drives only 2 4 Setting the SCSIID 2 4 Data Compression Control 2 5 Termination Power 2 5 SCSI Connection and Termination DDS 2 and DSS 3 drives only 2 5 Setting the SCSIID 2 6 Data Compression Control 2 6 Termination Power 2 6 SCSI Connection and Termination DDS 4 drives only
45. ARKS command encountered EOP unexpectedly When reading this may mean the required data is on the next cartridge in the sequence A READ command has encountered compressed data on the tape and the drive is not currently configured to decompress data The host may have disabled data compression or configuration switch 2 on the underside of the autoloader may be off so the host s ability to control the drive s state is disabled Action Check that the host has not disabled data compression Make sure that switch 2 is on by reconfiguring the drive using the configuration switches on the underside of the autoloader A WRITE READ SPACE or REWIND command has failed to complete The tape is positioned on the far side of the bad groups of data Action Reposition and try again The cartridge is stuck in the drive Action Try forcing ejection see page 4 9 If this fails call for service 4 14 Edition 8 December 1999 Operation Autoloaders Localizing the Display HP C5713A only 4002 1004 8022 8015 1010 8010 8003 8018 8023 LCD Message Unable to boot Cleaning tape Unloading UpgradeErr Worn Media Write x y Write Fail Write Fail Clean or Use New Tape Write Protected Tape Wrong FW Type OAR Meaning S The system cannot boot from a cleaning cartridge Either the drive is unloading a cartridge or a cartridge is being ejected from the drive and replaced in the magazi
46. Default MRS is active Non Media Recognition System tapes are treated as if they are write protected Note There is an exception in the case of drives integrated into SUN and IBM systems where switch 8 controls MRS Switches 4 to 8 Switches 4 to 8 are used to specify connectivity and functionality according to host or customer requirements The default setting is all switches on Autoloader Option Switches The autoloader option switches are on the rear panel see figure 2 10 The switches are read at power on Figure 2 10 Autoloader option switches Switches are set to ON o0o ez _ ei Bann monomnnonnonnonnannonnanann onsmnnannonnnnnannonnnnnn eeo When the autoloader is switched off you can set the following configurations other settings are not used at this time For more precise details and settings recommended for different systems see the HP DDS Configuration Guide Volume 5 of the HP DDS Technical Manual Note LUN 0 is the drive mechanism LUN 1 is the changer mechanism 2 10 Edition 8 December 1999 Switches Installation Autoloader Option Switches LUN 0 Drive Inquiry Allow Resequencing LUN 1 Magazine Auto stack Ready Auto eject Enabled Enabled Enabled Enabled Enabled Enabled Enabled Auto stack Auto eject Allow R
47. Emergency Removal of a Magazine or Cartridge autoloaders only 6 3 7 Interface Implementation The SCSI Interface 7 2 Supported Messages 7 2 Supported Status Codes 7 3 Supported Commands 7 3 Supported Mode Pages 7 5 Supported Log Pages 7 5 8 Physical and Safety Specifications Dimensions and Weight 8 2 Orientation Autoloaders only 8 2 Environmental 8 3 Electromagnetic Compatibility 8 4 Media Specifications 8 4 Power Requirements 8 5 Safety 8 7 Contents 2 Edition 8 December 1999 Conditions of Acceptability 8 7 9 Reliability Summary 9 2 Mean Time Between Failures MTBF 9 2 Drive Life 9 3 Data Interchange 9 3 Data Reliability 9 3 10 Performance Specification Power Fail Handling 10 3 A Product Comparisons Physical A 2 Media Related A 3 Mechanical A 4 Electrical A 5 Quality and Regulatory A 6 Interface and Performance A 6 Additional Differences A 7 Glossary Index Edition 8 December 1999 Contents 3 Contents 4 Edition 8 December 1999 Introduction Edition 8 December 1999 1 1 Introduction HP DDS Drives HP DDS Drives HP C1533A HP C1534A HP C1536A HP C1537A HP C1539A HP C5683A drive mechanisms HP C1553A HP C1557A HP C5713A autoloader mechanisms The family of DDS drives from HP is outlined in the following table HP C1834A ee TON HP CIBS3A Map careaay rp ciosan HP C1S53A fr ossaa HP C5683A HP C5713A Size 3 HH 3 HH 3 HH 392 HH 3 HH 5
48. LCD provides information about the autoloader Note that the exact display shown in figure 4 2 can never occur all the sections are showing at the same time so that you can see where they are Figure 4 2 Front panel LCD D Loading 2_ Bee 3 BB S 111100111111 KA 1 The 10 character dot matrix display provides information on the autoloader s operating status and potential error conditions See LCD Messages Categories on page 4 4 for details of the kinds of messages that can be displayed here 2 The 7 segment display shows the number of the current cartridge loaded in the drive or the cartridge selected when you press the Select button repeatedly Edition 8 December 1999 4 3 Operation Autoloaders LCD Messages Categories 3 DC Data Compression and WP Write Protected in the center of the LCD indicate when data compression is being used for writing and whether the cartridge is write protected 4 The six numbered boxes on the right of the LCD are individually lit to show which magazine slots contain a cartridge 5 The display at the bottom of the LCD shows how much tape has been used in the current partition The more lines shown the more tape has been used When all the lines show the partition is full Front Panel Lights The autoloader has three front panel lights see figure 4 1 Magazine Present top light green Steady green A magazine is installed Flashing
49. No No No No No No Termination power jumper jumper permanent permanent jumper jumper jumper jumper jumper jumper Humidity sensor Yes Yes No No No No No No No No Appendix A 2 Edition 8 December 1999 Supported media Media Related HP 35470A HP 35480A HP C1534A HP C1536A HP C1533A HP C1537A HP C1539A HP C1553A HP C1557A HP C5683A HP C5713A MRS support optional optional Hardware data compression DCLZ No Yes Format compatibility DDS 1 DDS1 DC DDS 2 DDS 3 DDS 4 Yes No No No No Yes Yes No No No Yes No No No No No No No No No Yes Yes Yes Yes No No No No No Yes Yes Yes Yes No No Yes Yes Yes Yes No Yes Yes Yes Yes Capacity typical using 2 1 data compression where supported 60m DDS 1 90m DDS1 DC 120m DDS 2 125m DDS 3 150m DDS 4 1 3 GB 2 0 GB No No No 2 6 GB 4 0 GB No No No 1 3 GB 2 0 GB No No No 2 6 GB 4 0 GB No No No 2 6 GB 4 0 GB 8 0 GB No No 2 6 GB 4 0 GB 8 0 GB 24 0 GB No 2 6 GB 4 0 GB 8 0 GB No No 15 6 GB 24 0 GB 48 0 GB No No 15 6 GB 24 0 GB 48 0 GB 144 GB No n s 4 0 GB 8 0 GB 24 0 GB 40 0 GB n s 24 0 GB 48 0 GB 144 GB 240 GB Data encoding 8 10 NRZI 8 10 NRZI 8 10 NRZI 8 10 NRZI
50. O HEWLETT PACKARD HP DDS Drives HP C1533A DDS 2 Drive 8 gigabyte HP C1534A DDS 1 Drive 2 gigabyte HP C1536A amp HP C5737A DDS DC Drive 4 gigabyte HP C1537A amp HP C1554A DDS 3 Drive 24 gigabyte HP C1539A amp HP C1599A DDS 2 Drive 8 gigabyte HP C1553A DDS 2 Autoloader 48 gigabyte HP C1557A amp HP C5648A DDS 3 Autoloader 144 gigabyte HP C5683A DDS 4 Drive 40 gigabyte HP C5713A DDS 4 Autoloader 240 gigabyte User Manual Part Number C1534 90911 Edition 8 December 1999 Hewlett Packard Ltd Computer Peripherals Bristol Filton Road Stoke Gifford Bristol BS12 6QZ U K Notice The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or direct indirect special incidental or consequential damages in connection with the furnishing performance or use of this document This document contains proprietary information which is protected by copyright All rights reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Copyright 1999 by Hewlett Packard Limited Printing History Version Date Changed Pages
51. a Compression Control Data compression can be controlled through the jumper pin shown in figure 2 7 The pin is only monitored at power on and controls whether data compression is enabled by default Any subsequent change to the pin is ignored Pin State Effect Unconnected Data compression is controlled by configuration switches 1 and 2 on the default underside of the drive and through the SCSI MODE SELECT command Connected to 0V Data compression is disabled The setting of configuration switch 1 is ignored Switch 2 is valid However data compression can still be controlled through MODE SELECT Note that when reading the drive will always decompress compressed data It follows from this that if you want to use this pin you should set configuration switch 1 on the underside of the drive to ON Termination Power The drive will provide termination power for the SCSI termination resistors ifa Jumper is set across the two pins marked Term power in figure 2 7 2 6 Edition 8 December 1999 Cable Connector Terminator Note Installation SCSI Connection and Termination DDS 4 drives only SCSI Connection and Termination DDS 4 drives only For the HP C5683A and HP C5713A ultra wide LVD and single ended multi mode SCSI is supported Only unshielded connectors can be used The drive does not support termination on the device itself Normally drives such as this are not required to be at the en
52. ages 4 4 Edition 8 December 1999 Reset Firmware Upgrade Magazine Load Cartridge Load Tape Motion Operation Autoloaders LCD Messages Categories E Information messages These types are described below All the messages are listed on page 4 11 in alphabetical order The type of message is indicated by the letter S Status E Error or I Informational Status Messages The status messages that appear on the LCD cover five functional states or areas of activity of the autoloader When switched on the autoloader moves through the states in the following order At power on the autoloader is in Reset state until the self test has been passed If a firmware upgrade tape is in the drive or an upgrade is taking place over the SCSI bus from the host the autoloader moves into the Firmware Upgrade state after passing the self test If no upgrade is being performed the autoloader moves into the Magazine Load state and remains there until a magazine has been loaded After a magazine has been loaded the autoloader moves into the Cartridge Load state until a cartridge has been moved to the drive and loaded Once a tape has been loaded the Tape Motion state covers activity involving the tape including reading and writing data The table below shows the messages that can be displayed in each functional state The messages in brackets are not displayed on the LCD because the autoloader will have already have moved to
53. al Access devices store data sequentially in the order in which it is received Tape devices are the most common sequential access devices Devices such as disk drives are Direct Access devices where data is stored in blocks not necessarily sequentially Direct Access allows for speed of retrieval but at a price A special recorded element within a partition to which the drive can fast search without having to know the number ofrecords or filemarks that precede the setmark see SCSI Leaving a cartridge for a period of time in the room in which it is to be used in order to avoid condensation problems caused by changes in humidity and temperature A period of two hours is recommended Glossary 4 Edition 8 December 1999 stacker mode Autoloaders only In Stacker mode cartridges are used sequentially from the synchronous system area Tape log Tape Alert termination time tracking transfer rate vendor unique autoloader magazine The cartridge selected by the user by pressing the front panel Select button and then loaded by pressing the Load button is used first When it is full the changer mechanism automatically moves it back to the magazine and then moves the cartridge in the next highest numbered slot to the drive This continues until all the cartridges have been used To load cartridges under host control the device must be in Random mode Stacker mode is sometimes referred to as Sequential mode see data
54. ane fl 800 MA ll a a a a a a et Idle Drive Fast Forward Autoloader Read Write Rewind Activity Load Unload 8 6 Edition 8 December 1999 Physical and Safety Specifications Safety Safety All HP DDS drives conform to the following safety standards m UL 1950 Safety of Information Equipment Including Electrical Business Equipment Second Edition m CSA C22 2 Number 950 M1986 Safety of Information Equipment Including Electrical Business Equipment m TUV EN60 950 Safety of Information Technology Equipment including Electrical Business Equipment 1992 Al A2 1993 m IEC 950 Safety of Information Technology Equipment including Electrical Business Equipment Conditions of Acceptability Use the drives only in equipment where the suitability of the combination has been determined by an appropriate certification organization for example Underwriters Laboratories Inc or the Canadian Standards Association in North America and the British Standards Institution or Verband Deutscher Elektrotechniker in Europe Other considerations include the following m A drive must be installed in an enclosure to limit an operator s access to live parts to provide system stability and to give the drive the necessary grounding integrity m A drive must only be supplied by a Safety Extra Low Voltage secondary circuit in accordance with DIN VDE 0805 During incorpora
55. anguage feature Press the Select button to scroll through the available languages The selected language is displayed in the LCD display If you select Numeric messages will be displayed as numerical codes which are defined in LCD Messages on page 4 11 Press the Load button to store the selected language and exit the language selection utility To exit the language selection facility without selecting a language press the Enter button If the Select button is not pressed for two minutes the drive will automatically exit the language selection facility without selecting a language Edition 8 December 1999 4 15 Operation Autoloaders Upgrading Firmware from Tape Upgrading Firmware from Tape The autoloader allows you to upgrade its firmware by inserting a Firmware Upgrade tape In order to do this proceed as follows The process will take at least 3 minutes to complete Caution Do not disconnect power at any time during the upgrade or it may result in the autoloader having corrupt firmware or no firmware at all The autoloader will then have to be returned to the factory Note m Ifthe firmware upgrade is incompatible with your hardware no upgrade will take place The LCD will show the message Wrong Fw the upgrade cartridge will be returned to the magazine and the magazine ejected m The upgrade tape must not be write protected m The upgrade tape can only be used a certain number of times After
56. anism and attach it with the four screws while pushing down gently b Fit the front of DAT drive under the pivot points c Connect the red interface cable d Rotate the drive back into position and when you reach the point mentioned in step 3 insert the securing bracket e Push the drive fully home f Insert the two screws into the securing bracket at the rear and tighten them see figure 6 1 6 4 Edition 8 December 1999 Interface Implementation Edition 8 December 1999 7 1 Note Interface Implementation The SCSI Interface The SCSI Interface The drives use SCSI 2 as the interface to connect to the host system Throughout this chapter the term SCSI implies SCSI 2 The SCSI implementation provides the drives with a standard set offeatures and functions These include the following m DDS 1 DDS 2 DDS 3 drives Single ended narrow SCSI connection m DDS 4 drives LVD single ended multi mode SCSI m Synchronous data transfers m Asynchronous data transfers m Implementation of all mandatory and most optional commands of the Sequential Access command set m Autoloaders only Full implementation of mandatory Medium Changer commands More detailed information on the SCSI interface can be found in the documents listed in Chapter 1 Supported Messages The following messages are supported 00h COMMAND COMPLETE 01h EXTENDED MESSAGE SDTR and WDTR 02h SAVE DATA POINTER 03h RESTORE POINTERS
57. ation problems Integration Guide interchange format interface cables ordering interface implementation 3 5 4 10 Hewlett Packard workstations Index T a D T amp Od ur O 9 D Eu RS ra ES T N N pa 00 un N bo T bo T RS zn ur a 1 G Q a o T D p I bo 1 g w a a oh iN a Glos 2 bo RS AR do m do IF RS re RS I iN a for P In br do gt N en y w m m bo ma ror Y no e wo ral 00 T Index 2 J jams avoiding 4 6 L labels where to stick them 3 3 4 6 5 5 languages on front panel 4 15 LCD 4 3 localizing 4 15 messages 4 4 4 11 LEDs see lights Lempel Ziv algorithm Glos 2 life expectancy of changer mechanism 9 2 of tapes 5 4 life of drive 9 3 lights A 2 Activity 3 2 Attention 3 2 3 5 Magazine Present 4 Operator Attention Required 4 4 4 6 4 8 4 9 4 11 Tape Activity 4 4 liquid crystal display see LCD Load Tape button 4 3 loading Glos 2 cartridges 3 3 4 6 magazine 4 6 sequence 3 3 4 8 time taken during 4 8 10 2 A 6 localizing the front panel display 4 15 log pages 7 5 logs Tape Glos 5 TapeAlert 1 4 Glos 5 logs Tape 4 8 low voltage differential see LVD LUN 0 drive inquiry 2 11 LUN 1 magazine ready 2 11 LVD Glos 4 combing with SE devices 2 7 M magazine Glos 2 ejecting 4 8
58. buffer capacity density randomizer data compression 1 3 2 9 A 3 Glos T bo r du 10 2 E du e do Rp cable control HP C1533A 53A 37A 2 6 2 8 HP C1536A 2 5 switches 2 9 data reliability 9 2 error rate 9 3 data transfer Glos 1 asynchronous 7 2 synchronous 7 2 DC on front panel LCD 4 4 DCLZ A 3 Glos 2 DDS formats 1 3 5 3 A 3 Glos 2 DEC 2 9 density of data on tape A 3 differential SCSI Glos 4 dimensions 2 12 8 2 direct access Glos 4 documents related 3 1 6 drive life expectancy 9 2 drivers 2 9 E ECMA Glos 2 Eject button 4 3 4 9 ejecting the magazine 4 8 ejection forcing 3 4 4 9 electromagnetic compatibility 8 4 ENABLE MEDIA REMOVAL 3 4 enclosures 8 7 environmental specification 8 3 A 6 EOD 3 4 4 9 Glos 2 error messages 4 6 error rate 9 3 A 6 extender cable 1 8 F fast SCSI Glos 4 fast search Glos 2 speed A 4 faults 6 1 filemarks Glos 2 Index 1 firmware upgrading autoloader drives fixing points flashing lights forcing ejection form factor format see DDS form format of tape identifying front panel autoloader drives lights localizing number codes FRU fusing G grounding autoloader head cleaning autoloader drives head life prolonging host problems HP C1533A HP C1534A HP C1536A HP C1537A HP C1539A HP C1553A HP C1557A humidity 2 humidity sensor IBM RS 6000 inserting a magazine inserting cartridges install
59. ce Specification 10 4 Edition 8 December 1999 Appendix A Product Comparisons Edition 8 December 1999 Appendix A 1 Form factor The following tables compare features of HP DDS drives Physical HP 35470A HP 35480A 3 5 HP C1534A 3 5 HP C1536A 3 5 HP C1533A 3 5 HP C1537A 3 5 HP C1539A 3 5 HP C1553A 5 25 HP C1557A 5 25 HP C5683A 3 5 HP C5713A 5 25 Dimensions in mm Width Depth Height 101 6 4 0 150 5 9 41 3 1 6 101 6 4 0 150 5 9 41 3 1 6 101 6 4 0 150 5 9 41 3 1 6 101 6 4 0 150 5 9 41 3 1 6 101 6 4 0 150 5 9 41 3 1 6 101 6 4 0 150 5 9 41 3 1 6 101 6 4 0 150 5 9 41 3 1 6 146 1 5 75 203 2 8 0 82 6 3 25 146 1 5 75 203 2 8 0 82 6 3 25 101 6 4 0 150 5 9 41 3 1 6 146 1 5 75 203 2 8 0 82 6 3 25 Weight no cartridge or magazine ikg 2 2 Ib 1 kg 2 2 Ib 0 66 kg 1 5 Ib 0 66 kg 1 5 Ib 1 kg 2 2 lb 1 kg 2 2 Ib 0 685 kg 1 5 Ib 2 2 kg 4 8 Ib 2 2 kg 4 8 Ib 0 716 kg 1 58 Ib 1 989 kg 4 38 Ib Autochanger No No No No No No No Yes Yes No Yes Lights LEDs 2 bi color 2 bi color 2 2 2 2 2 3 LCD 3 LCD 2 3 LCD Termination resistors Yes Yes No No No
60. changed between drives which conform to the same DDS format Data Reliability The unrecoverable error rate on read is specified as less than 1 in 10 bits read For further details refer to Designing a Data Storage Format for Digital Audio Tape DAT produced for the DDS Manufacturers Group and available from Hewlett Packard see Chapter 1 Edition 8 December 1999 9 3 Edition 8 December 1999 9 4 10 Performance Specification Edition 8 December 1999 10 1 Capacity 2 1 compression 1 3 GB 2 6 GB 2 6GB 2 6 GB 15 6 GB 15 6 GB n s n s 2 0 GB 4 0GB 4 0 GB 4 0 GB 24 0 GB 24 0 GB 4 0 GB 24 0 GB DDS 1 60m cart DDS 1 90m cart DDS 2 120m cart DDS 3 125m cart DDS 4 150m cart Performance Specification HP C1534A HP C1536A HP C1533A HP C1537A HP C1539A HP C1553A HP C1557A HP C5683A HP C5713A n s n s 8 0 GB 8 0 GB 48 0 GB 48 0 GB 8 0 GB 48 0 GB n s n s n s 24 0 GB n s 144 0 GB 24 0 GB 144 0 GB n s n s n s n s n s n s n s 40 0 GB 240 0 GB Transfer Rate Max Sustained Nativel 183 KB s 183 KB s 510 KB s 1 MB s 510 KB s 510 KB s 1 MB s 3 MB s 3 MB s Max Burst Asynch Max Burst Synch 1 6 MB s 3 MB s 3 MB s 3 MB s 3 MB s 3 MB s 6 MB s 6 MB s 5 MB s 8 MB s 10 MB s gt 10 MB s 8 MB s 10 MB s 40 MB s 40 MB s Average Cartridge Load Time lt 14s lt 14s lt 14s lt 13s swap time swaptime lt 15s swap time
61. d of a bus but if this is unavoidable HP recommends the use of the feed through SCSI terminator listed below which plugs directly into the rear of the drive Use active termination because the drive is capable of a transfer rate greater than 5 MB s The following are possible cable and terminator sources Internal 4 connectors 68 way Ribbon Cable LVD SE HP C7424A Ultra 2 quality conductors 1m the connector comes as part of the cable 3M Connector 3425 7650 3M Strain Relief 3448 3050 Methode Datamate SCSI Terminator DM 2750 01 LVD SE When using feed through termination termination power must be supplied to pin 26 of the SCSI Interface Power can be supplied by any device on the bus If you want the drive to supply it set a jumper across the two pins marked Term power in figure 2 7 Be careful when inserting and removing feed through terminators to avoid damaging the end walls of the terminator and the drive Mixing SE and LVD Ultra and Ultra2 SCSI Devices If you combine SE and LVD devices on the same bus the host bus adapter will automatically switch to single ended mode and optimum performance for any device on the bus will be at Ultra speeds and cable length This means that the performance of any Ultra2 devices will drop to that of Ultra devices All other devices will operate at their optimum speed If you connect only LVD devices the bus will operate in low voltage differential mode and Ultra2 speeds will be
62. e now performs a load sequence This takes a maximum of 25 seconds from the time the cartridge is inserted to the time the drive is ready to start acting upon the next command from the host The sequence is as follows a The drive mechanism threads the tape and rewinds it to Beginning of Media BOM It checks the tape format such as DDS 2 or audio and the number of partitions If the tape is blank the drive leaves the tape at Beginning of Media BOM and awaits the next command b If the tape is in DDS format and is write enabled the drive performs write and read tests If the error rate is high the Operator Attention Required light flashes and clean Me is displayed on the LCD c The drive copies the Tape log from the tape into RAM d The drive rewinds to BOP Beginning of Partition and goes online awaiting a command from the host 6 Once the drive is online it sends a CHECK CONDITION on receipt of the next SCSI command from the host The UNIT ATTENTION key is set in the returned REQUEST SENSE data to indicate that the tape may have been changed Ejecting the Magazine and Cartridges To eject a cartridge from the autoloader press the Eject button The following sequence of events occurs 1 The tape is rewound to BOP Beginning of Partition 2 Ifthe tape is write enabled the copy of the Tape log held in RAM is written back to tape 3 The tape is then rewound to BOM Beginning of Media and unthreaded 4 The changer
63. ed 02h OFh 10h 11h 1Ch 1Dh 1Fh Mode Page Disconnect Reconnect Data Compression Characteristics not HP C1534A Device Configuration Medium Partitions TapeAlert HP C1539A DDS 3 and DDS 4 drives only Element Address Assignment autoloaders only Device Capabilities autoloaders only Supported Log Pages The following Log pages are supported 02h 03h 2Dh 2Eh 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h 3Ah 3Bh 3Ch 3Dh 3Eh Log Page Write Error Counters Read Error Counters Reserved DDS 3 and DDS 4 drives only TapeAlert log HP C1539A DDS 3 and DDS 4 drives only Tape Log Tape Capacity Log Buffer Trace Log Device Trace Log Write Frames Error Counters Read Frames Error Counters Bad Group Log Drive Counters Mechanism Counters Data Compression Log not HP C1534A Data Compression Trace Log not HP C1534A Channel Trace Log Autoloader Trace Log autoloaders only Autoloader Retry Counters autoloaders only Read Retry Log HP C1539A DDS 3 and DDS 4 drives only Edition 8 December 1999 7 5 Interface Imple tation Supported Log Pages 7 6 Edition 8 December 1999 Physical and Safety Specifications Edition 8 December 1999 8 1 Physical and Safety Specifications Dimensions and Weight Dimensions and Weight The overall dimensions of drives are as follows Height 41 3 mm 1 6 in Depth 150 mm 5 9 in Width 101 6 mm
64. ee page 4 9 l This is displayed when you press the Eject button The drive is erasing data from the tape E F The mechanism has jammed The number x gives the reason for the jam Action Press the Eject button to attempt to recover the cartridge and magazine Ifthe problem persists note the value of x and call for service l HP OBDR requires a cartridge in slot 1 from which it can boot l The system cannot boot from the loaded tape I A forced ejection is in progress see page 4 9 S A SCSI command for generating a one or two partition tape is being executed or the drive is changing the size of the partitions on an existing two partition tape S Firmware upgrade data is being checked for compatibility E F The autoloader has failed to upgrade the drive firmware because the new firmware is corrupt Action Obtain a good copy of the firmware upgrade 4 12 Edition 8 December 1999 Operation Autoloaders LCD Messages 3003 3005 3001 8025 8027 8026 2002 8003 8007 1021 2009 1003 1016 1002 1001 1006 8005 3004 8016 4000 1017 LCD Message FW Program FW Tape FW Upgrade FW Read Fail FW Tape Write Protected FW Write Fail Insert Mag Load Fail Try New Tape Load Fail Press Eject Load Lock Load Tape Loading Locate Mag Check Mag Eject Mag Loaded Media Removal Prevented New FW No EODmark OBDR Mode Partition Type OAR Meaning S
65. emperature limits An appropriate method to establish whether you have adequate airflow over the drive is to measure temperatures at two key sites Each product must meet two conditions Max Temp Location Difference The temperature of the biggest integrated circuit in the center of the PCB 39 C HP 35470A U5 HP C1534A U4 HP C1557A U7 HP 35480A U5 HP C1536A U4 HP C5683A U6 HP C1533A U13 HP C1539A U6 HP C5713A U6 HP C1553A U13 HP C1537A U7 The temperature of the head tape interface on the left hand side looking from the front 12 C The maximum difference between the applied temperature and the measured temperature For example if the applied temperature is 25 C in other words ambient and the measured temperature is 40 C the maximum difference will be 40 25 15 C The same applies to the head tape interface For example if the applied temperature is 25 C you should provide sufficient air flow so that the temperature of the head tape interface does not exceed 37 C 37 25 12 The test conditions should be as follows 1 Power up the drive with a tape loaded but not performing any commands 2 Allow a minimum of two hours for the temperature to stabilize Testing should be completed for the worst case physical configuration for airflow Edition 8 December 1999 2 13 Installation Airflow and Cooling Requirements Alternative Method A simpler but less accurate method is to monitor a single p
66. er of the magazine see figure 4 3 Make sure that the small arrows on the magazine and cartridge line up You can use any number of cartridges from 1 to 6 and place them in any of the magazine slots However for ease and speed of use start by using slot 1 During a sequential backup by default the drive will attempt to load the first cartridge from slot 1 To install the magazine insert it into the slot in the front of the autoloader with the large arrow uppermost and pointing towards the autoloader see figure 4 3 Apply steady pressure until the mechanism takes the magazine and pulls it into the autoloader The autoloader then performs a self test routine This also checks which magazine slots contain cartridges When the self test and magazine check is complete if you are using the autoloader in Stacker mode select the cartridge with which you want the sequence to start by pressing the Select button When the correct number is displayed press the Load Tape button to load the cartridge In Random mode the host computer selects and moves a cartridge from the magazine into the drive mechanism The drive is configured to use DDS Media Recognition System cartridges Any cartridge that is not DDS Media Recognition System will be treated as write protected you will only be able to read it not write to it Edition 8 December 1999 4 7 Note Operation Autoloaders Ejecting the Magazine and Cartridges 5 The driv
67. er on self test time lt 14s lt 14s lt bs lt bs lt 10s lt 10s lt 10s lt bs lt bs lt 15s lt 15s 15st Load time lt 30s lt 30s lt 14s lt 14s lt 14s lt 14s lt 13s loading a cartridge in the embedded drive Taverage time for the changer mechanism to swap a cartridge between the magazine and the drive wide SCSI Edition 8 December 1999 Appendix A 6 Additional Differences 1 Minimum SCSI transfer size to guarantee streaming HP 35470 80A HP C1534A 36A 5 KB HP C1533 37 39A 6 KB HP C5683 5713A 8 KB The following notes concern SCSI commands 2 INQUIRY Standard Inquiry Data Format page Product Revision Level The HP 35470A 80A uses a numeric format showing the basic firmware revision and the drive variant such as 10 9 Here the basic revision level is 10 and the variant is 9 For the full firmware revision code see the INQUIRY Firmware Revisions page code COh bytes 5 29 This might show the full firmware revision as 10 7 for example Other HP DDS drives use an alphanumeric format giving the firmware date code For the HP C1533A 53A this is in the form yymm where yy is the year and mm the month For example 9503 would mean March 1995 The HP C1534A 36A use the same basic method but the first digit ofthe year is replaced by the letter T For example T503 would indicate an HP C1534A 36A with firmware of March
68. es and 4 bottom package together Type 1 package corners from 910 mm height for a single drive 760 mm for ten packaged together Suspended Operating and Non Suspended particle environment Particles Operating particles lt 200 microgram cubic meter Acoustic Noise Emissions lt 5 0 bel soundpower Edition 8 December 1999 8 3 Physical and Safety Specifications Electromagnetic Compatibility Electromagnetic Compatibility The EMC performance of internal autoloaders depends on the characteristics of the system in which the autoloader is installed Hewlett Packard has tested internal autoloaders installed in network servers and in external desktop enclosures to verify EMC performance against existing regulatory standards Hewlett Packard will also ensure that internal autoloaders will comply with new regulatory standards by or before their date of implementation Implementation European Economic International Date Area Standards Standards Radiated and Conducted Emissions before 1 Aug EN 55022 1994 CISPR 22 1993 2001 Amendment A1 1995 A1 1995 Amendment A2 1997 A2 1996 from 1 Aug 2001 EN 55022 1998 CISPR 22 1997 Harmonic Current Emissions before 1 Jan 2001 EN 60555 2 1987 IEC 60555 2 1982 A1 1985 after 1 Jan 2001 EN 61000 3 2 1995 IEC 61000 3 2 1995 Amendment A1 1998 A1 1997 Amendment A2 1998 A2 1998 Voltage Fluctuations and Flicker before 1 Jan 2001 EN 60555 3 1987 IEC 6
69. es not support data compression The pin is only monitored at power on and controls whether data compression is enabled by default Any subsequent change to the pin is ignored Pin State Unconnected default Connected to OV Effect Data compression is only controlled by configuration switches 1 and 2 on the underside of the drive and through MODE SELECT Data compression is disabled The setting of configuration switch 1 is ignored Switch 2 is valid Data compression can still be controlled through MODE SELECT Note that when reading the drive will decompress compressed data Note It follows that if you are using this pin you should set configuration switch 1 on the underside of the drive to ON Termination Power The HP C1534A and HP C1536A are permanently configured to provide termination power SCSI Connection and Termination DDS 2 and DSS 3 drives only Only a single ended narrow SCSI configuration is supported with a maximum sustained transfer rate of 8 MB s See Section 4 Physical Characteristics of the SCSI X3T9 89 042 Standard Only use unshielded connectors The drive does not support termination on the device itself Normally drives such as this are not required to be at the end of a bus but if this is unavoidable HP recommends the use of the feed through SCSI terminator listed below which plugs directly into the rear of the drive Use active termination because the drive is capable of a tra
70. esequencing LUN 1 Magazine Ready LUN O Drive Inquiry The autoloader enters Stacker mode see Modes of Operation on page 4 2 after a magazine has been inserted The first cartridge is loaded automatically When the autoloader is in Stacker mode it will eject the magazine after the last cartridge in the magazine is unloaded While the autoloader is in Stacker mode you can select another cartridge to be loaded into the drive by using the Select and Load buttons When this option is not enabled the Load and Select buttons are ignored in Stacker mode A TEST UNIT READY command to LUN 1 will receive a NOT READY status message unless a magazine in present and magazine census data is available When this option is not enabled a TEST UNIT READY command will receive a GOOD status report whenever the autoloader has completed the power on self tests This provides a method of detecting whether a magazine is present The product ID sent in response to an INQUIRY command to LUN 1 will be that of the embedded tape drive When this option is not enabled the ID sent is that of the entire autoloader Edition 8 December 1999 2 11 Installation Fixing Requirements Fixing Requirements The position of fixing points is shown in figure 2 11 for drives and figure 2 12 for autoloaders Note Screw threads must not penetrate more than 4 mm into the drive Figure 2 11 Drive fixing points gt lt 4 mm 0 15
71. fferent settings for different configurations for example to enable and disable the Media Recognition System MRS The HP DDS Configuration Guide Volume 5 ofthe HP DDS Technical Manual lists them all and offers configuration advice Default and most PC Applications Hewlett Packard Workstations Series 300 400 700 800 SUN IBM RS 6000 DEC Data Compression not HP C1534A Switches 1 and 2 are disabled in the HP C1534A because the drive does not support data compression Switches 1 and 2 are normally used to configure the way in which data compression is set for the drive The following table shows the available options Switch 1 Switch 2 Meaning Compression enabled at power on with host control Compression enabled at power on no host control Compression disabled at power on The host is allowed to control compression Compression disabled at power on no host control Note that with switch 1 on data written to the tape will be compressed without the knowledge of the host Edition 8 December 1999 2 9 Installation Autoloader Option Switches Media Recognition System MRS Switch 3 is normally used to configure the drive to respond to DDS Media Recognition System tapes MRS is discussed more fully in Chapter 5 IA The Media Recognition System is disabled All DDS tapes are treated the same whether they possess the Media Recognition stripes or not
72. flashes amber and continues to be displayed when you repeat the operation with a new tape HP C1534A HP C1536A HP C1533A Number of DDS cartridges used each day lt 1 2 3 4 Cleaning Interval Weekly Twice a week Daily HP C1537A HP C1539A HP C5683A Number of DDS cartridges used each day lt 1 2 3 4 Cleaning Interval 8 weeks 4 weeks 3 weeks Weekly Clean the heads using a cleaning cartridge HP 92283K as follows 1 Insert the cleaning cartridge into the drive The drive automatically takes the cartridge loads it and cleans the heads 2 After about 30 seconds 20s for the HP C1537A the drive ejects the cartridge 3 Take the cleaning cartridge out of the drive and write the date on the label on the cartridge This provides a record of how many times the cartridge has been used You need to know this because a cleaning cartridge has a life of typically 50 cleaning cycles Cleaning cartridges can only be used about 50 times For the HP C1537A HP C1539A and HP C5683A software applications can warn you when the cleaning cartridge has reached the end of its life and needs replacing by polling the drive s TapeAlert log For other drives the cartridge will be ejected after only about 14 seconds when the cleaning cartridge has expired In the case of the HP C1533A the Media Caution signal may still be displayed If any of these events occurs discard the cleaning cartridge and repeat the cleaning ope
73. following recommendations m Labels must be firmly stuck and not peeling off or curling at the corners m Labels must only be stuck within the label area m A label must not be stuck on top of another label m Only use the labels that are supplied with the cartridges or magazine Figure 5 4 Magazine label area Only stick a label here Edition 8 December 1999 5 5 Cartridges Using Labels 5 6 Edition 8 December 1999 This chapter contains a few hints for approaching troubleshooting together with a detailed description of the emergency procedure that a qualified service engineer can use to retrieve a magazine or cartridge from an autoloader in the event of a jam For details of error messages displayed on the front panel LCD ofan autoloader see LCD Messages Categories on page 4 4 and LCD Messages on page 4 11 Troubleshooting Edition 8 December 1999 6 1 Troubleshooting General Procedure General Procedure If a problem occurs the first step is to try to establish whether the problem lies with the cartridge the drive the host computer and connections or the way the system is being operated m Has the system just been installed There could be an installation problem Check through the information in Chapter 2 Check the power connectors and SCSI cabling Is the SCSI ID correctly set Is there a SCSI system conflict Has the SCSI bus been correctly terminated Have the c
74. ge model described in Changer Life above The MTBF for the drive mechanism would be 200 000 power on hours with the typical duty cycle for DDS format drives of 12 With the heavier 30 duty cycle within the autoloader this reduces to 80 000 hours Combining these two gives an overall MTBF of 40 000 hours at a 30 duty cycle This is calculated as follows Drive MTBF y O 12 200 000 hrs Autochanger mechanism MTBF 30 80 000 hrs For the drive embedded in an autoloader The factor for usage in the autoloader is A 2 5 O so MTBF 30 80000 hours 200000 2 5 So we now have MTBF py 30 80 000hrs MTBF 30 80 000hrs The FPMH Failure Rate Mechanism Hours for the whole autoloader is the sum of the reciprocals of the individual MTBF for drive and autochanger mechanism I ip Be A FPMH MTBF MTBF 80000 80000 The MTBF for the whole autoloader is then the reciprocal of this FPMH 1 1 40000 hours FPMH 25x10 MTBF Drive Life The expected life of the HP C1534A 36A is equivalent to 2 000 hours of tape pulling For the other higher performance drives the expected head life is equivalent to 6 000 hours of tape pulling The drive is designed to operate in streaming and repositioning modes Sustained low data transfer rates may cause premature failure through an excessive number of starts and stops Data Interchange According to specification cartridges can be inter
75. ger life cartridge swaps gt 100 000 gt 100 000 Uncorrectable error rate lt 1 in 1015 lt 1 in 1045 lt 1 in 1013 lt 1 tin 1025 lt 1 in 1025 lt 1 in 1015 lt 1 in 1015 lt 1 in 1015 lt 1 in 1015 UL CSA amp TUV approved Yes Yes Yes Yes Yes Yes Yes Yes Yes Environmental specs HP B2 HP B2 HP B2 HP B2 HP B2 HP B2 HP B2 HP B2 HP B2 ITE EMC specs Yes Yes Yes Yes Yes Yes Yes Yes Yes Interface and Performance HP HP HP HP HP HP HP HP HP HP HP 35470A 35480A C1534A C1536A C1533A C1537A C1539A C1553A C1557A C5683A C5713A Buffer size 1 MB 1 MB 512 KB 512 KB 1 MB 2 MB 1 MB 1 MB 2 MB 8MB 8 MB Transfer Rates maxima using the optimal cartidge type for each drive such as DDS 2 for DDS 2 drives Sustained native 183 KB s 183 KB s 183 KB s 183 KB s 510 KB s 1 MB s 510 KB s 510 KB s 1 MB s 3 MB s 3 MB s Burst asynchronous 1 5 MB s 1 5 MB s 1 5 MB s 1 5 MB s 3 MB s 3 MB s 3 MB s 3 MB s 3 MB s 6 MB s 6 MB s Burst synchronous lt 5 MB s lt 5 MB s lt 5 MB s lt 5MB s lt 8 MB s 10 MB s lt 10 MB s lt 8 MB s 10 MB s 40 MB s 40 MB s Mean reposition time lt 2 5s lt 2 5s lt 3 0s lt 3 0s lt 2 5s lt 2 5s lt 3s lt 2 5s lt 2 5s lt 2 5s lt 2 5s Mean time to fast lt 30s lt 30s 52s 52s 40s 40s 40s 40s 40s 50s 50s search on an xm DDS 1 DDS 1 DDS 1 DDS 1 DDS 2 DDS 3 DDS 2 DDS 2 DDS 3 DDS 4 DDS 4 cartridge 90m 90m 90m 90m Pow
76. gnd 12V gnd 12V Rear ofthe embedded drive Changer power Figure 2 5 Y cord connections Changer Drive 5Y Gnd Gnd 12V SV Gnd Gnd 12v For autoloaders connect power by using the Y Cord connector shown in figure 2 5 which is supplied with the autoloader Note that the two ground lines are routed separately and only connected together to a common ground at the external power supply connector 5V Gnd Gnd 12V KA QO QO 9 I i pi Grounding The 5V and 12V grounds are both connected to the chassis The following are appropriate parts to make up a mating connector Housing AMP part number 1 480424 0 Pins for 18 AWG cable AMP part number 60619 4 quantity 4 Edition 8 December 1999 2 3 Installation SCSI Connection and Termination DDS 1 drives only SCSI Connection and Termination DDS 1 drives only Only a single ended narrow SCSI configuration is supported The hardware and termination specifications of this interface type can be found in Section 4 Physical Characteristics of the SCSI X3T9 89 042 Standard Only unshielded connectors can be used The HP C1534A and HP C1536A do not support termination on the drive itself Normally drives such as these are not required to be at the end of a bus but if this is unavoidable HP recommends the use of an additional short length of cable with a terminator attached There is not enough space for a feed thr
77. green A magazine is being installed checked or ejected The light also flashes during the autoloader s self test routine Tape Activity middle light green Steady green A cartridge is present in the drive Flashing green 4Hz 2 Hz Data is being read or written or activity other than the cartridge being loaded or unloaded is occurring A cartridge is being loaded or unloaded The light also flashes during the autoloader s self test routine Operator Attention Required lower light amber Steady amber A serious hardware error has occurred Flashing amber A user recoverable error has occurred The exact meaning depends on the rate of flashing 4 Hz 2 Hz 2 Hz 1 Hz 1 Hz 1 Hz A firmware upgrade is taking place The tape is nearing the end of its useful life The heads need cleaning A hard fault condition has occurred that the drive cannot easily clear There is a tape in the autoloader but no magazine The front panel door is open when it should not be To find which of these applies read the message on the top line ofthe LCD and then refer to LCD Messages on page 4 11 Take corrective action if possible If necessary call for Service The light also flashes at 2 Hz during the autoloader s self test routine LCD Messages Categories The type of information displayed by the LCD can be divided into three categories m Normal autoloader operating status information m Error mess
78. ibility DDS Formats and Compatibility DDS formats have been developed by Hewlett Packard for data storage drives which use and build on DAT technology DDS format drives are produced by a number of manufacturers HP C1534A The HP C1534A implements the DDS 1 format This incorporates the error correction techniques used in audio DAT drives with additional techniques specifically designed to provide the integrity of data necessary for computer use These extra methods of error detection and correction are as follows a C3 ECC a third level of Error Correction Code providing correction across frames within groups a Read After Write where data is verified immediately after it is written and re written ifthere is any error a Data Randomizer for recoding the data in order to provide a consistent signal level This enables read after write to be effective a Track checksums for detecting and locating helical errors and so improving the performance of C3 ECC a N Group Writing where every group is repeated a set number of times The default setting for N is 1 Each tape can be formatted as a single data space or as two partitions which can be written to independently Tapes are used as follows DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 DDS 1 DDS 1 not supported not supported not supported HP C1536A HP C5737A The HP C1536A implements the DDS DC format This includes all of the features of the
79. ing sweeper that reduces the frequency of cleaning tape usage by a factor of eight Tapes are used as follows DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 DDS 1 DDS 1 DDS 2 not supported not supported HP C1553A The HP C1553A DDS 2 Autoloader combines a changer mechanism with an HP C1533A DDS 2 tape drive mechanism The autoloader houses up to six DDS cartridges in a removable magazine which enables you to back up 48 gigabytes of data overnight assuming a data compression ratio of 2 1 High speed file retrieval and tape swapping typically allows access to any file in an average of ninety seconds The autoloader supports both sequential and random access mode with minimum interruption time between cartridges The embedded drive has the features listed for the HP C1533A above The autochanger adds the following a A Liquid Crystal Display LCD giving clear and comprehensive indications of the status of the autoloader a A low cost magazine carrying up to six DDS cartridges giving a magazine capacity of 48 gigabytes for DDS 2 cartridges and 2 1 data compression a Compatibility with the SCSI 2 Medium Changer command set a A common SCSI 2 interface for the drive and changer a A standard 5 inch full height form factor Tapes are used as follows DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 DDS 1 DDS 1 DDS 2 not supported not supported HP C1537A HP C1554A The HP C1537A implements
80. isabled The setting of configuration switch 1 is ignored Switch 2 is valid However data compression can still be controlled through MODE SELECT Note that when reading the drive will always decompress compressed data It follows from this that if you want to use this pin you should set configuration switch 1 on the underside of the drive to ON Termination Power The drive will provide termination power for the SCSI termination resistors ifa Jumper is set across the two pins marked Term power in figure 2 7 2 8 Edition 8 December 1999 Installation Configuration Switches Configuration Switches There is a set of configuration switches on the underside of the drive as shown in figure 2 9 These are read at power on With the drive switched off use the information below to select the correct configuration for your system Figure 2 9 Configuration switches shown in default positions On On Off On On On On On Note For the drive to operate correctly appropriate drivers and application software Default must be loaded on the host computer It is beyond the scope of this manual to cover this area For further details consult the HP DDS Configuration Guide Volume 5 ofthe HP DDS Technical Manual or contact your HP supplier The following table is provided as a general reference only The following table shows typical Configuration Switch Settings They are only a rough guideline there are a great many di
81. itten and writing the frame again if an error is found The Audio DAT two head drum is replaced by a four head drum for this with two read only heads and two write only heads Frames are only re written as necessary so speed and capacity are affected minimally RAW is included in the DDS format Small Computer System Interface a standard command specification and command set that enables computers and peripherals to communicate with each other HP s current family of tape drives adhere to the SCSI 2 specification Single Ended and Low Voltage Differential SCSI These terms define how the signals are transmitted along the cable With single ended SE SCSI each signal travels over a single wire and each signal s value is determined by comparing the signal to a paired ground wire Signal quality tends to decrease over longer cable lengths or at increased signal speed Edition 8 December 1999 Glossary 3 sense data sequential access setmark single ended stabilizing With low voltage differential LVD signaling signals travel along two wires and the difference in voltage between the wire pairs determines the signal value This enables faster data rates and longer cabling with less susceptibility to noise than SE signaling and reduced power consumption Narrow and Wide Fast Ultra and Ultra2 SCSI a Narrow SCSI devices can transfer data one byte at a time and are sometimes called 8 bit SCSI devices They can conf
82. ize Removing Power from the Drive To ensure reliable operation do not remove power from the drive during read write fast search load and unload activities Upgrading Firmware from Tape HP DDS drives allow you to upgrade firmware by inserting a Firmware Upgrade cartridge Do not disconnect power during the upgrade particularly when the front panel lights are flashing or it may result in the drive having corrupt firmware or no firmware at all The drive will then have to be returned to the factory To upgrade firmware m Ifthe firmware upgrade is incompatible with your hardware no upgrade will take place The tape will be ejected after about 1 minute instead of the usual 3 minutes m The upgrade tape must not be write protected m The upgrade tape can only be used a certain number of times After that a drive will reformat it for normal data use although given the amount of use it will have had it is not advisable to use it for data m You cannot convert a firmware upgrade tape for normal data use 1 Ensure that the drive is not engaged in any SCSI activity the Activity light is off and the host is not going to be accessing the drive 2 Insert the Firmware Upgrade cartridge into the drive 3 The upgrade process automatically takes place During the actual erasure and reprogramming of the firmware it is critically important that you do not power down the drive The front panel lights flash rapidly during
83. l lights Activity Attention Meaning a Key N Activity load or unload Off A A Activity read or write Green E Cartridge loaded Amber any Media Caution signal ee Flash Amber any Fault E Vas on Ves off Power on starts with two N a steady lights gt Media Caution Signal HP drives monitor the number of correctable errors that occur during reading and writing If the number or errors grows excessive it can mean that the tape is nearing the end of its useful life or that the tape heads need cleaning If the Media Caution signal appears clean the tape heads as described on page 3 5 If the signal is still displayed after cleaning the heads repeat the operation with a different tape If this clears the signal the first tape is nearing the end of its life Copy the data onto a new tape and discard the old one The Media Caution signal is cleared when a new tape is loaded or when the drive is power cycled 3 2 Edition 8 December 1999 Operation Drives Loading and Unloading Loading and Unloading CautionStick cartridge labels firmly to the recessed label area To avoid a mechanism jam observe the following recommendations m Labels must not be peeling off m Stick labels only within the label area m Do not stick a label on top of another label Only use cartridges labelled with a DDS logo in the drive
84. led DDS Media Recognition System in the drive To exploit the full potential of the drive make sure that they are DDS 2 cartridges for the HP C1553A DDS 3 cartridges for the HP C1557A or DDS 4 cartridges for the HP 5713A m Never use DAT cartridges because the media is not certified and they can have a different specification that can cause them to jam in the mechanism m Do not use DDS 3 or DDS 4 cartridges with the HP C1553A or DDS 4 cartridges with the HP 1557A the drives will simply eject them To avoid jams insert cartridges in the magazine in their proper orientation and fully pushed home To avoid mechanism jams use labels properly m Only stick labels in the label areas on cartridges and magazines see figure 4 3 m Ensure that the corners of cartridge and magazine labels stick firmly to the surface and do not curl at their edges m Never stick labels on top of other labels It is recommended that you store cartridges in their magazines so that cartridges belonging to a multi volume backup are kept together and in the correct order 4 6 Edition 8 December 1999 Operation Autoloaders Loading the Magazine and Cartridges Figure 4 3 Loading the magazine and cartridges Loading cartridges into the magazine Note Do not fix labels here Fix label here Inserting the magazine into the autoloader Place as many cartridges as you need into the magazine pointing towards the cent
85. lowing times m After every 25 hours of use m When a Clean Me message is displayed in the front panel LCD and the Operator Attention Required light is flashing amber As a rough guideline the frequency of cleaning is likely to be as follows HP C1553A Number of cartridges used each day lt 1 2 3 gt 4 Cleaning frequency Weekly Twice a week Daily HP C1557A and HP C5713A Number of cartridges used each day lt 1 2 3 gt 4 Cleaning frequency 8 weeks 4 weeks 3 weeks Weekly Edition 8 December 1999 4 9 Note Note Note Operation Autoloaders Head Cleaning Clean the heads using a cleaning cartridge HP 92283K as follows Cleaning cartridges can only be used about 50 times With the HP C1557A software applications can warn you that a cleaning cartridge has expired by polling the TapeAlert log With both autoloaders an expired cleaning cartridge will be ejected in less than 20 seconds instead of the usual 30 seconds With the HP C1553A if the clean Me message was showing before the attempt to clean the heads it will still be showing afterwards Cleaning the Heads in Stacker Mode 1 Place the cleaning cartridge into one of the magazine slots for example slot 1 and insert the magazine into the autoloader 2 Use the Select button to select the magazine slot in which you placed the cleaning cartridge 3 Press the Load Tape button to load the cleaning cartridge
86. m Press the Unload button three times within a 5 minute period or press the Unload button twice in the 5 minutes following a SCSI UNLOAD command m Hold the Unload button down for at least 5 seconds Following either of these actions the drive first waits for 35 seconds from the time of the first press in order to give the normal eject procedure a chance to be followed Once this period of grace has elapsed it immediately unthreads the tape and ejects the cartridge regardless of what operation it was performing The drive is then reset as though the power had been switched off and then on again Because forced ejection may interrupt any operation it is possible that the drive will not write EOD before the cartridge is ejected This will cause loss of data and result in a cartridge with an invalid format A forced ejection overrides any SCSI PREVENT MEDIA REMOVAL which may be in effect and can abort any SCSI operations which may be in progress on the drive 3 4 Edition 8 December 1999 Note Operation Drives Taking Care of the Drive Taking Care of the Drive DDS drives require little care and maintenance The two main activities are to clean the heads regularly and to avoid condensation and temperature extremes Head Cleaning Clean the tape heads regularly using the guidelines in the following tables Tape heads should also be cleaned ifthe Media Caution signal is displayed on the front panel the Attention light
87. ne An error occurred while upgrading the firmware A high error rate has been detected while writing suggesting that the tape is nearing the end of its useful life Action Copy any data you wish to keep from the cartridge onto a new cartridge and discard the old cartridge The drive is writing data to tape x y 1 is the cumulative compression ratio since power on or since the compression ratio was last cleared For example Write 2 1 means a compression ratio of 2 1 1 The compression ratio is only be displayed after about 1 MB of data has been written since power on A WRITE WRITE FILEMARK or ERASE command has failed Action Use a new cartridge The drive could not write to the tape which may be worn or damaged Action Insert a cleaning cartridge to clean the tape heads ensuring that the tape in the cleaning cartridge has not been used up see Head Cleaning on page 4 9 or use a new cartridge A WRITE WRITE FILEMARK or ERASE command has been attempted on a write protected cartridge Action Remove the cartridge and change it to write enabled The upgrade firmware is not compatible The drive has not been programmed Localizing the Display HP C5713A only HP C5713A autoloaders allow you to localize the LCD display so that messages are displayed in the desired language 1 2 3 Switch on the autoloader and hold down the Select button on the front panel for five seconds to access the L
88. never use DAT cartridges see Chapter 4 Inserting Cartridges Figure 3 3 Inserting a cartridge Note Insert a cartridge into the slot on the front panel As the cartridge is inserted the drive takes it and performs a load sequence By default the drive is configured to detect DDS Media Recognition System cartridges If you load a cartridge which is not DDS Media Recognition System the cartridge will be treated as write protected you will only be able to read it not write to it See Chapter 4 for more details The load sequence is as follows 1 The drive mechanism threads the tape and rewinds to BOM Beginning of Media The drive then reads the first Reference area on the tape Partition 1 on a 2 partition tape to find the tape format DDS audio and so on and the number of partitions 2 Ifthe tape is blank the drive leaves the tape at BOP Beginning of Partition for Partition 0 and awaits the next command 3 Ifthe error rate is high the Media Caution signal is set on the front panel lights the Attention light flashes amber 4 The System area on the tape is then accessed and the Tape log read into the drive Note that the Tape log is not loaded for HP C1534A 36A drives with firmware version T503 5 Finally the drive rewinds to BOP Partition 0 Edition 8 December 1999 3 3 Note Caution Note Operation Drives Loading and Unloading Removing Cartridges A cartridge can be removed either in
89. nit installed for customer use Failure rates are derived from a large database of test samples The actual failure rate will vary from unit to unit Mean Time Between Failures MTBF The specifications assume that the integration practices recommended by CPB have been followed see the list ofrelated documents on page 1 6 Also refer to the duty cycle given in the table above The method of calculation is as follows MTBE Cumulative hours of all drives shipped Number of units returned due to end user failures MTBF for the Autoloaders Changer Life The expected life of the changer mechanism is gt 100 000 cartridge swaps This is based on a typical model of heavy usage as follows m The autoloader is used 5 days per week m There are 20 cartridge swaps per day m The drive performs 10 hours of tape pulling per day This gives 100 cartridge swaps per week and 50 hours pulling tape which is equivalent to a 30 duty cycle for the autoloader A cartridge swap is defined as follows 1 The drive rewinds the cartridge and unloads it 2 The changer mechanism returns the cartridge to the magazine 3 The changer selects another cartridge from the magazine and transfers it to the drive 4 The drive loads the new cartridge 9 2 Edition 8 December 1999 Note Reliability Summary Calculating the MTBF For HP C1553A autoloaders the expected MTBF is based on a figure of 80 000 hours for the changer mechanism with the usa
90. nsfer rate greater than 5 MB s The following are possible cable and terminator sources Cable 28AWG Ribbon Spectra Strip 132 2899 887 style 2697 Connector 3M Connector 3425 7650 3M Strain Relief 3448 3050 Terminator Methode Active SCSI Terminator DM550 06 R Amphenol Active SCSI Terminator 33770 When using feed through termination termination power must be supplied to pin 26 of the SCSI Interface Power can be supplied by any device on the bus If you want the drive to supply it set a jumper across the two pins marked Term power in figure 2 7 Be careful when inserting and removing feed through terminators to avoid damaging the end walls of the terminator and the drive Edition 8 December 1999 2 5 Installation SCSI Connection and Termination DDS 2 and DSS 3 drives only Setting the SCSI ID The SCSI ID is set using jumpers on the set of pins beside the SCSI connector at the rear of the drive as shown in figure 2 7 Figure 2 7 Rear panel of the HP C1533A 37A 39A Compression on off using a control cable Bit O Bit 1 Bit 2 Term power III AI SCSI connector A o Of Power connector The three significant bits in the ID give a range of 0 through 7 as follows SCSIID Bit2 Bit1 Bit 0 SCSI ID Bit 2 Bit 1 Bit O 0 0 0 0 4 1 0 0 1 shorted 1 0 0 1 5 1 0 1 O open 2 0 1 0 6 1 1 0 3 0 1 1 7 1 1 1 The drive reads the SCSI ID at power up and during self test Dat
91. oint on the underside of the drive Fix a thermocouple at the point and make sure that the measured temperature does not exceed 52 C This point should be limited to a maximum of 12 C above the applied temperature For example ifthe applied temperature is 40 C surrounding then you need to ensure that there is sufficien air flow so that this point does not exceed 52 C 40 12 Drive Location on the underside From the front From the side HP 35470A 100 mm 50 mm HP 35480A HP C1533A 70 mm 50 mm HP C1553A HP C1534A 70 mm 40 mm from the left side looking from the HP C1536A front HP C1539A 50 mm 50 mm HP C1537A HP C1557A HP C5683A 55 mm 35 mm from the right side looking from the HP C5713A front 2 14 Edition 8 December 1999 Operation Drives Edition 8 December 1999 3 1 Operation Drives Front Panel Front Panel Figure 3 1 Front panel Activity light Unload button Attention light The lights on the front panel operate as follows Activity Light m Flashing green shows activity loading unloading reading or writing m Steady green means a cartridge is loaded Attention Light m Flashing amber indicates that a cartridge is near the end of its life or that the heads need cleaning the Media Caution signal see below m Steady amber indicates a hard fault Figure 3 2 illustrates the meaning of different patterns of lights Figure 3 2 Front pane
92. onfiguration switches been set correctly for your system Check the environmental conditions against the specified limits NO ao RAN Are appropriate drivers and application software installed on the host m Are you using new cartridges or a different brand of cartridge Have you been using the particular cartridge for a very long time The problem could lie with the cartridge 1 Check through Chapter 5 2 Check that you are using a DDS labeled cartridge not a DAT cartridge 3 DDS 2 media will be ejected by DDS 1 and DDS DC drives HP C1534A and HP C1536A DDS 3 and DDS 4 media will be ejected by DDS 1 DDS DC and DDS 2 drives HP C1534A HP C1536A HP C1533A HP C1539A and HP C1553A DDS 4 media will be ejected by DDS 3 drives HP C1537A and HP C1557A Are you trying to write to non MRS media Check the configuration switches A Has the cartridge been write protected Clean the tape heads with the cleaning cartridge So no 6 Try the operation again 10 Ifthe problem still occurs try using a different cartridge 11 Ifthe problem is still there the problem probably lies with the drive or the host computer m Has the drive been moved recently Have any cables been disconnected and reconnected Has the environment changed unusually hot cold damp or dry Has there been dust or dirt near the drive Have reasonable precautions against static been taken The problem could lie with the drive 1 Check the cables and
93. orceEject Format FW Check FW Data Err Type OAR Meaning E O A SPACE command encountered BOD unexpectedly The tape is now positioned at BOD E O A READ or SPACE command encountered the EOD area unexpectedly The tape is now positioned at EOD E F A READ or SPACE command has failed because the tape is not in DDS format Action Unload the tape and use a DDS certified Media Recognition System tape E F A WRITE WRITE FILEMARK or ERASE command has been attempted on non Media Recognition System tape Action Remove the cartridge and replace with a Media Recognition System cartridge E F Cleaning failed possibly due to an expired tape Action Use a new cleaning cartridge E F A high error rate has been detected reading or writing Action Insert a cleaning cartridge to clean the tape heads ensuring that the tape in the cleaning cartridge has not been used up See Head Cleaning on page 4 9 A cleaning cartridge has been loaded into the drive mechanism F The front panel door is open Any autoloader motion will be delayed Action This is probably caused by a magazine that is partly inserted through the door Push the magazine fully home or remove it E O The drive has stopped communicating with the changer mechanism Action Call for service The drive has detected an internal error F An eject command has failed either after you pressed the Eject button or after a host command Action Try forcing ejection s
94. orm to either the SCSI 2 or SCSI 3 protocols They have a 50 pin connection to the SCSI bus a Wide SCSI devices can transfer two bytes of data simultaneously 16 bit SCST They usually have a single 68 pin connection to the SCSI bus This physical arrangement is part ofthe SCSI 3 specification They may support either SCSI 2 or SCSI 3 protocols Wide and narrow devices can simultaneously be connected to the same bus without problem provided certain rules are followed a Fast SCSI can transfer data at up to 10 MB sec using a cable of up to 6 meters total length a Ultra SCSI can transfer data at up to 20 MB sec but the cable length cannot exceed 3 meters it is also known as Fast20 a Ultra2 SCSI can transfer data at up to 40 MB sec using a cable of up to 25 meters total length for a single device or up to 12 meters for two or more devices it is also known as Fast40 Ultra SCSI supports both SE and LVD interfaces Ultra2 SCSI supports LVD interfaces only In normal situations slower devices can coexist with faster devices and narrow devices can be used on the same SCSI bus as wide devices using a suitable adapter HP s DDS 4 drives HP C5683A and HP C5713A are ultra wide SCSI 2 compatible devices They can be used with both LVD and SE host bus adapters Data returned after the execution of a SCSI command telling the host whether the transaction was successful and if not what went wrong Sequenti
95. ough connector to be connected to the drive unless you use a special short modified power extender cable with one ear reduced The following are possible cable and terminator sources Cable 28AWG Ribbon Spectra Strip 132 2899 887 style 2697 Connector 3M Connector 3425 7650 3M Strain Relief 3448 3050 Power Extender 4 way Feed Through Power Cable C1534 61001 Terminator Methode Active SCSI Terminator DM 1050 02 R Methode Passive SCSI Terminator DM 1050 02 0 Setting the SCSI ID The SCSI ID is set using jumpers on the set of pins beside the SCSI connector at the rear of the drive as shown in figure 2 6 Figure 2 6 Rear panel of the HP C1534A 36A Compression on off using a control cable Bit O Bit 1 Bit 2 T SCSI connector ee o o o o Power connector The three significant bits in the ID give a range of 0 through 7 as follows SCSIID Bit2 Bit 1 Bit 0 SCSI ID Bit 2 Bit 1 Bit 0 0 0 0 0 4 1 0 0 1 shorted 1 0 0 1 5 1 0 1 O open 2 0 1 0 6 1 1 0 3 0 1 1 7 1 1 1 The HP C1534A 36A reads the SCSI ID at power up and during self test 2 4 Edition 8 December 1999 Installation SCSI Connection and Termination DDS 2 and DSS 3 Data Compression Control For the HP C1536A data compression can be controlled through the jumper pin shown in figure 2 6 The HP C1534A do
96. pe with multiple upgrade versions into an autoloader or drive that does not support tapes of this kind the device will only look at the first upgrade version on the tape If this matches its hardware the device will update the firmware If it does not match the tape will be rejected 4 16 Edition 8 December 1999 Operation Autoloaders Self Test Self Test During power up the autoloader executes a self test diagnostic sequence to test the electronics for functionality This is shown by all three lights flashing at a rate of 2 Hz twice a second If the self test fails the Operator Attention Required light changes to steady amber and the other lights extinguish The results of these tests are reported to the host through the SCSI RECEIVE DIAGNOSTICS command Replaceable Parts The autoloader is a single field replaceable unit FRU In the event of a problem with any of the sub assemblies in the unit the whole unit should be replaced Edition 8 December 1999 4 17 Operation Autoloaders Replaceable Parts 4 18 Edition 8 December 1999 Cartridges Edition 8 December 1999 5 1 Cartridges DDS Formats DDS Formats The DDS Digital Data Storage formats build on the DAT Digital Audio Tape format to meet the more stringent needs of computer data storage As the DDS technology has developed so new standards have been produced each allowing more data to be stored on a single cartridge
97. presenting the current logical block address to the host A block is of fixed or variable length depending on the Fixed bit in the WRITE command Blocks are numbered sequentially starting with 1 at BOM Each block filemark or setmark adds one to the count from BOM Tells the drive to transfer sense data to the host Instructs the drive to return its limits for record length Autoloaders only ensures that the data about the status of internal elements magazine slots and the drive is available for READ ELEMENT STATUS Transfers one or more data records to the host starting with the next record on the tape Transfers one or more records from the host to the current logical position on the tape Not HP C1534A 36A Positions the tape in a specified position in the current partition When there is no exception condition during command execution the tape is placed at the BOP side of the block specified in the Block Address field Tells the drive to write a specified number of filemarks starting at the current logical position on the tape Instructs the drive to perform a variety of positioning functions spacing over a specified number of records filemarks setmarks or to EOD Tells the drive to return basic operating parameter information to the host Verifies one or more records beginning with the next record on the tape The verification only checks records on the tape No data is transferred between the host and the drive Allows
98. ration with a new one Prolonging Head Life Drives are optimized to achieve the best performance possible and a typical head life in excess of 6000 hours This figure assumes that you use the appropriate tape for the drive such as DDS 4 media with DDS 4 drives and that you follow a typical usage pattern You may not attain the typical head life when m You use an older tape format such as DDS 2 tapes with a DDS 3 drive m A large proportion of cartridges loaded are being used for the first time Edition 8 December 1999 3 5 Caution Note Operation Drives Upgrading Firmware from Tape Temperature and Condensation Condensation is bad for tape drives To minimize the chance of condensation keep within the environmental limits given in the specifications see page 8 3 To avoid temperature problems observe these guidelines Q Position the drive in a position where the temperature is relatively stable for example away from open windows fan heaters and doors a Do not leave cartridges in severe temperature conditions for example in a car standing in bright sunlight a Do not transfer data reading from and writing to cartridges when the temperature is changing by more than 10 C 18 F per hour U After either the drive or the cartridge have been subjected to extreme temperature changes gt 15 C 27 F do not use the drive for at least two hours to allow the temperature of the drive and cartridge to stabil
99. ression ratio of 2 1 High speed file retrieval and tape swapping typically allows access to any file in an average of ninety seconds The autoloader supports both sequential and random access mode with minimum interruption time between cartridges The embedded drive has the features listed for the HP C1537A above The autochanger adds the following a A Liquid Crystal Display LCD giving clear and comprehensive indications of the status of the autoloader a A low cost magazine carrying up to six DDS cartridges giving a magazine capacity of 144 gigabytes for DDS 3 cartridges and 2 1 data compression a Compatibility with the SCSI 2 Medium Changer command set a A common SCSI 2 interface for the drive and changer a A standard 5 inch full height form factor Tapes are used as follows DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 DDS 1 DDS 1 DDS 2 DDS 3 not supported HP C5683A The HP C5683A implements the DDS 4 format which allows storage of 40 gigabytes on a DDS 4 tape assuming a data compression ratio of 2 1 The drive includes most of the features of DDS 3 drives with the following major differences a Any DDS 2 DDS 3 or DDS 4 cartridge can be read or written to whether data compression is switched on or off 90m DDS 1 tapes can be read but not written to a Wide Fast 20 LVD Ultra SCSI interface a New three point mechanism mounting system Tapes are used as follows
100. rforming first This ensures that the task is terminated in a controlled manner and no data is lost However if you need to unload a cartridge urgently even at the risk of losing data you must force ejection as follows 1 Hold the Eject button down for at least 5 seconds until the LCD displays Force Eject 2 The autoloader waits 35 seconds to give the normal ejection procedure a chance 3 Once this time has elapsed if there is a tape loaded in the drive it is immediately unthreaded and the cartridge is ejected regardless of what operation the drive was performing The cartridge is then returned to its slot in the magazine and the drive is reset as though the power had been cycled Because the forced ejection may interrupt any operation it is possible that the drive will not write EOD End of Data before the cartridge is ejected This will cause loss of data and result in a cartridge with an invalid format However it should still be possible to read such a cartridge up to the point where the ejection interrupted the writing 4 Ifno cartridge is loaded in the drive the autoloader assumes that you want to eject the magazine Following the 35 seconds it does this The autoloader is then reset as though power had been cycled Forced ejection overrides any SCSI PREVENT MEDIA REMOVAL that may be in effect and can abort any SCSI operations in which the autoloader is engaged Head Cleaning Clean the tape heads at the fol
101. s ejecting the magazine A magazine is present in the autoloader and the magazine check has been carried out An eject command has been attempted after a SCSI PREVENT MEDIA REMOVAL command has been sent by the host Action Try again when the media removal prevention has been removed This can be achieved by the host sending a SCSI ALLOW MEDIUM REMOVAL command or by resetting or power cycling the autoloader The firmware upgrade process has been successfully completed The drive is trying to read what appears to be a blank tape one with no DDS format EOD pattern This is probably a result of power failure while writing The drive has switched to HP One Button Disaster Recovery mode and is restoring the operating system The drive is switching to the other partition on a two partition tape Edition 8 December 1999 4 13 Operation Autoloaders LCD Messages 8017 2007 1009 8012 1013 8020 1012 1011 1022 2008 0000 1007 2003 8006 1024 8019 8013 8008 LCD Message Partition 1 too large Press Eject Read Read Fail Rewind SCSI Error Search lt lt Search gt gt Select Lock Select Tape Self Test SemiLoaded Stray Tape Insert Empty Mag Tape Fault Tape Full Tape has DC data Tape Position Lost Tape Stuck ma m 0 Type OAR Meaning O A command to format the tape has failed because the requested size for partition 1 is too large Action
102. s of Operation The autoloaders may be operated in either Stacker or Random mode In Stacker mode also known as Sequential mode you can select which cartridge you want by using the Select and Load buttons on the front panel When a cartridge is ejected from the embedded drive after a host UNLOAD command the autoloader automatically moves the next available cartridge from the magazine into the drive The autoloader does not depend on the host computer sending SCSI Medium Changer commands to move cartridges to and from the magazine In Random or Changer mode the host views the autoloader as two devices m A tape drive to which SCSI Sequential Access commands can be sent m Achanger mechanism to which SCSI Medium Changer commands can be sent The controlling host computer therefore has full random access to any cartridge Front Panel Figure 4 1 Autoloader front panel Door for inserting magazine Magazine Present light Select button Eject button Liquid Crystal Display LCD Load Tape button Operator Attention Tape Activity light Required light The autoloader front panel consists of the following A door through which the magazine is loaded The Select button The Eject button
103. system acting as controller for the drive The process in which the drive takes in an inserted cartridge and goes online Low Voltage Differential See SCSI A holder for up to six tape cartridges used in autoloaders A method by which a drive can recognize data grade tape The tape has a series of stripes on its transparent leader tape that the drive can detect By default the drive treats a non Media Recognition System tape as read only and will not write data to it However it is possible to switch the recognition system off using the Configuration switches on the underside of the drive If this is done the drive will treat all DDS tapes the same Glossary 2 Edition 8 December 1999 N group writing offline online partition PRML random mode randomizing read after write RAW SCSI Sometimes called multiple group writing N group writing repeats each group of data so that there are N consecutive copies of each group on the tape This is a simple way of improving data integrity but speed and capacity are sacrificed through writing all data several times N group writing is not implemented on DDS 3 and DDS 4 drives The drive is offline if the tape is currently unloaded or not in the drive The host has limited access and cannot perform any commands that would cause tape motion The host can however load a tape if one is inserted and can execute any diagnostic tests that do not require tape motion The drive
104. th DDS 4 drives and that you follow a typical usage pattern You may not attain the typical head life when m You use an older tape format such as DDS 2 tapes with a DDS 3 drive m A large proportion of cartridges loaded are being used for the first time Write Protecting a Cartridge Caution The Tape log which contains a history of usage of the tape is updated during the unload procedure Ifthe cartridge is write protected the Tape log will not be updated and so will be inaccurate Note that HP C1534A and HP C1536A drives with firmware revision T503 do not update the Tape log during unload Cartridges can be write protected by sliding the tab on the rear of the cartridge so that the hole is open In this state data can be read from the tape but not written to it Figure 5 3 Write protecting a cartridge WRITE Cartridge write enabled READ ONLY Cartridge write protected Life Expectancy of Tapes All DDS certified media is electronically checked to withstand at least 2000 passes Under optimum environmental conditions 50 relative humidity 22 C this is equivalent to about 100 150 backup operations This takes into account that an area of tape may have several passes during a backup either because streaming cannot be maintained or because the backup software package repeatedly accesses certain areas of tape Under certain extreme conditions the recommended maximum number of backup operations is less These
105. the DDS 3 format which allows storage of 24 gigabytes on a DDS 3 tape assuming a data compression ratio of 2 1 The drive includes most of the features of DDS 2 drives with the following major differences a Any DDS 1 DDS DC DDS 2 or DDS 3 cartridge can be read or written to whether data compression is switched on or off a N Group writing is no longer supported Q The drive is capable of additional sophisticated techniques of error correction for dealing with tapes which are not up to specification 1 4 Edition 8 December 1999 Introduction DDS Formats and Compatibility a When using DDS 3 media the drive reads and writes the DDS 3 format with much higher capacity a An improved internal cleaning sweeper reduces the frequency of cleaning the heads by a factor of eight a HP s TapeAlert feature allows software and operating systems to warn users of problems which may occur such as a cartridge nearing the end of its useful life and to recommend actions that the user can take to recover from the situation Tapes are used as follows DDS 1 60m DDS 1 90m DDS 2 DDS 3 DDS 4 DDS 1 DDS 1 DDS 2 DDS 3 not supported HP C1557A HP C5648A The HP C1557A DDS 3 Autoloader combines a changer mechanism with an HP C1537A DDS 3 tape drive mechanism The autoloader houses up to six DDS cartridges in a removable magazine which enables you to back up 144 gigabytes of data overnight assuming a data comp
106. this critical time 4 After about three minutes when the upgrade is complete the cartridge will be ejected Remove it and replace it in its box 3 6 Edition 8 December 1999 Operation Drives Upgrading Firmware from Tape Upgrade Tapes for Multiple Drives From late 1995 drives began to be able to support tapes that contain upgrades for more than one drive When the upgrade tape is inserted the drive reads successive upgrades from the tape until it reaches one which matches its hardware It will then upgrade the firmware The whole process will take about 15 seconds longer for each upgrade version which needs to be skipped If you insert a tape with multiple upgrade versions into a drive which does not support tapes of this kind the drive will only look at the first upgrade version on the tape If this matches its hardware the drive will update the firmware If it does not match the tape will be rejected Edition 8 December 1999 3 7 Op yn Drives Upgrading Firmware from Tape 3 8 Edition 8 December 1999 This chapter gives details of the basic operation of the autoloaders HP C1553A HP C1557A and HP C5713A and the meaning ofthe front panel displays No maintenance is necessary apart from regular cleaning of the tape heads See the section Head Cleaning on page 4 9 Operation Autoloaders Edition 8 December 1999 4 Operation Autoloaders Modes of Operation Mode
107. tically load it without the host having to send a load command If a drive does not have autoload the drive will take no action until it receives a load command from the host computer A device embodying a tape drive and a cartridge changer mechanism housed in a single case A logical unit of information Called record in the DDS format specification Beginning Of Media The first point on the tape that can be accessed by the drive Beginning Of Partition The position at the beginning of the permissible recording region of a partition A third level of error correction code covered by the DDS format C3 allows any two tracks in a group to be corrected and is used only when a raw data error is too big to be corrected by C1 and C2 C8 code is stored in an extra frame at the end of the twenty two frames of data in each group Amechanism within an autoloader for moving tape cartridges from the magazine into the tape drive and back again See also random mode stacker mode The sum of a series of bytes written to the tape which can be checked against the sum of the same series of bytes when the tape is read A procedure in which data is transformed by the removal of redundant information in order to reduce the number of bits required to represent the data This is done by representing strings of bytes with codewords Digital Audio Tape see randomizing On a SCSI bus devices put in requests to be able to transfer information Once
108. tion Worst Case Peaks lt 1s HP C1557A Typical Operation embedded drive Worst Case Peaks lt 15 HP C5713A Typical Operation embedded drive Worst Case Peaks lt 1s For the HP C1553A the ratings for the embedded drive are the same as for the HP C1533A above The ratings for the changer mechanism in the autoloaders are as follows 5V supply 12V supply Changer Typical Operation lt 0 75A lt 0 25A 6 8W Mechanism Worst Case Peaks lt 1s 0 75A 2 0A 28W Measured values of current for typical units are as follows HP C1534A 36A HP C1533A HP C1537A HP C1539A HP C5683A Idle 0 05A 0 47A 0 02A 10 18A Reading Writing 0 12A 0 85A 0 06A 0 65A Load Unload peak lt 0 5s 0 51A 0 48A 0 06A 0 36A Fast Forward Reverse 0 21A 0 64A 0 03A 0 85A Edition 8 December 1999 8 5 Physical and Safety Specifications Power Requirements For the HP C1553A measured values of overall current for typical units are as follows m 5V between 1300 mA and 1400 mA with no significant spikes m 12V shown in figures 8 2 and 8 3 The drives are protected by internal fuses Figure 8 2 HP C1553A autoloader typical overall current Idle Autoloader Activity Drive Drive Read Write Fast Forward Rewind Load Unload Figure 8 3 HP C5713A autoloader typical overall current 1200 MA fesse al a dl K
109. tion of the equipment all requirements of DIN VDE 0805 must be observed and obeyed Note The drives are only fused to protect them from excessive currents Edition 8 December 1999 8 7 8 8 Edition 8 December 1999 Reliability Edition 8 December 1999 9 1 Hours Duty cycle 200 000 5 Reliability Summary Summary The following table summarizes the reliability specifications of the drives Bach measure is described in the sections that follow C5713A HP 200 000 200 000 40 000 300 000 300 000 55 000 400 000 100 000 5 12 30 12 12 30 12 30 Drive Life tape pulling hours 2 000 2 000 6 000 6 000 6 000 6 000 6 000 6 000 6 000 Cartridge Swaps n a n a n a gt 100 000 n a n a gt 100 000 n a gt 100 000 DDS DDS 1 DDS 1 DDS 1 DDS 1 DDS 1 DDS 1 DDS DC DDS DC DDS DC DDS DC DDS DC DDS DC DDS DC DDS 2 DDS 2 DDS 2 DDS 2 DDS 2 DDS 2 DDS 3 DDS 3 DDS 3 DDS 3 DDS 4 DDS 4 Data Reliability Error Rate lt 1 in 101 bits read Note lt 1 in 10 lt 1 in 10 lt 1 in 10 lt 1 in 101 lt 1 in 10 lt 1 in 10 lt 1 in 10 lt 1 in 10 bits read bits read bits read bits read bits read bits read bits read bits read 90m DDS 1 tapes are read only 60m DDS 1 tapes are not supported Hewlett Packard Company does not warrant that these predicted values are representative of any particular u
110. two hours to allow the temperature of the autoloader and cartridges to stabilize LCD Messages The following list gives the messages that can be shown on the front panel LCD in alphabetical order See also LCD Messages Categories on page 4 4 The Type column can show three letters E Error messages I Informational messages S Status messages The OAR column indicates the state ofthe Operator Attention Required light on the front panel while the message is being displayed O On F Flashing The HP C5713A also displays the URL of the HP World Wide Web Support page with certain messages Number Codes HP5713A only The HP C5713A autoloader has a language selection feature which allows you to localize the display for French German Spanish Portuguese or Japanese Ifyour language is not supported you can select a Numerical code instead and refer to the list of messages below for an explanation of the code Edition 8 December 1999 4 11 Operation Autoloaders LCD Messages 1019 1018 8014 8021 8009 2001 1008 2006 8002 8001 8004 2010 1015 8000 4003 4001 1023 1014 3002 8024 LCD Message At BOD At EOD Bad Media Cannot Write Non MRS Tape Clean fail Check Cleaning Tape Clean Me Cleaning Close Door Drive Comms Error Drive fault Eject Fail Eject Mag Erase Error X ERROR No tape in slot 1 ERROR Unable to boot from tape F
111. ty light 4 4 Tape log 4 8 5 4 Glos 5 TapeAlert log 1 4 Glos 5 temperature 2 13 3 6 4 11 8 3 tension control A 4 termination 1 8 Glos 5 HP C1533A 53A 2 5 2 7 HP C1534A 36A 2 4 HP C1537A 2 6 2 8 resistors A 2 termination power A 2 HP C1533A 53A 37A 2 6 2 8 HP C1534A 36A 2 5 terminators 2 4 2 5 2 7 Edition 8 December 1999 Index time taken while loading 10 2 A 6 repositioning A 6 self testing A 6 swapping tapes 10 3 unloading 10 2 time tracking Glos 5 track checksum 1 3 transfer rate 1 2 10 2 Glos 5 transportation 8 3 troubleshooting 6 1 types of message 4 11 U ultra SCSI Glos 4 ultra wide using with ultra2 devices 2 7 Unload button 3 2 3 4 disabled 3 4 forcing ejection 3 4 unloading cartridges 3 3 time taken during 10 2 upgrading firmware autoloader 4 16 drives 3 6 vV Vendor Unique Glos 5 vibration 8 3 W wide data transfer Glos 1 wide SCSI Glos 4 WP on front panel LCD 4 4 write protecting 5 4 Y Y cord 2 2 Index 3 Index Edition 8 December 1999
112. y narrower tracks and thinner tape led to DDS 2 which can typically provide double the capacity of DDS 1 DDS 3 uses a new magnetic coating on the tape that allows twice the recording density Together with the use of time tracking this gives a DDS 3 tape approximately three times the capacity of a DDS 2 tape DDS 4 uses longer tapes 150m HP s DDS 4 drives which are ultra wide SCSI devices allow transfer rates from 3 to 4 times greater than DDS 3 and capacities that are two thirds as much again see SCSI Error Correction Code See C3 ECC European Computer Manufacturers Association End Of Data The end of valid data in a partition on a tape The process of reading just the Sub Code areas to locate an item on the tape ata speed significantly faster 90 to 175 times than normal read speed A mark written by the host It does not necessarily separate files It is up to the host to assign a meaning to the mark In an emergency you can force the drive to eject a cartridge In doing so data will probably be lost and the tape may become unusable so be very cautious about using this emergency procedure To force the ejection of a cartridge press the Unload button the Eject button on the HP C1553A three times within a 5 minute period or hold it down for at least 5 seconds Field Replaceable Unit an assembly or group of components that is replaced in its entirety by Service Engineers when it contains a fault The host computer
113. y the magazine slot to use Tells the drive to send analysis data to the host after completion of a SEND DIAGNOSTIC command Requests the drive to perform diagnostic tests If the tests fail CHECK CONDITION status indicates the results are available through the REQUEST SENSE command Allows the host to control whether the drive can eject a tape cartridge Autoloaders only A vendor unique version of PREVENT MEDIA REMOVAL which also allows the host to control whether the magazine can be removed Autoloaders only A vendor unique command returning information on which magazine slots contain cartridges Moves the current logical position to a new position specified by the host Returns the drive s logical position to the host Used in conjunction with the READ BUFFER to test the buffer and the SCSI bus integrity Used after a WRITE BUFFER command to test the data buffer and the SCSI bus integrity Allows the host to clear one or more log pages in the drive Allows the host to retrieve information from the drive s logs Autoloaders only Allows the host to request that a cartridge is moved from the magazine to the drive or from the drive to the magazine Autoloaders only Allows the host to find the status of the internal elements magazine slots and the embedded tape drive 7 4 Edition 8 December 1999 Interface Implementation Supported Mode Pages Supported Mode Pages The following Mode pages are support

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