Quantum DAT 240 Loader User's Manual
Contents
1. i 2 a o g z a a oO 4 CH S T yH A H SS g 1 i 45 5 0 25 u 79 5 0 25 MOUNT HOLE M3 4 PLACES 7 0403 203 2 0 25 224 0 max a a CH 4 r i l a K o d S o elle 3 2 N e 1 LI ly MOUNTING HOLE a 45 5 0 25 pla 79 5 0 25 M3 4 PLACES 203 2 0 5 a s 224 0 max ae Figure 3 Internal Scorpion 240 Drive Dimensions Power Specifications Internal drive The following table lists the power specifications for the internal Scorpion 240 drives Specification 12 VDC supply 5 VDC supply Voltage Tolerance or 10 or 7 Operational Current 700 milliamps max 1 70 Amps max Standby Current 500 milliamps max 1 0 Amps max Surge peak 2400 milliamps max 2 0 Amps max Ripple peak to peak lt 100 mV lt 100 mV Specifications 7 Total power consumption for the Scorpion 240 including both the 5V and 12V power supplies is as follows Standby Power 11 Watts max Operating Power 17 Watts typical 28 Watts max Surge start up 39 Watts max Note Surge power and current are measured over a 20 msec period The following table lists pin assignments of the power connector for the internal Scorpion 240 Pin Assignment 1 12 VDC 2 12 return 3 5 return 4 5 VDC Note The internal Scorpion 240 employs a power sensing circuit t2. Figure 4 Jumper settings for internal Scorpion 240 Each SCSI device on a bus must have a unique SCSI ID The SCSI controller or Pins Function 1 2 SCSI ID bit 0 3 4 SCSI ID bit 1 5 6 SCSI ID bit 2 7 8 SCSI ID bit 3 9 10 Parity checking 11 12 Termination Power SCSI ID 0 33 71 SCSI ID 8 elels e w SCSI ID 1 ess le SCSIID 9 ajans SCSIID 2 2552 02 SCSIID 10 e ele ele SCSIID 3 02 cai SCSIID 11 2 ifs ele SCSI ID 4 i225 2 SCSIID 12 alalales SCSIID 5 OC SCSI ID 13 slalele s SCSI ID 6 25 2 5 02 SCSIID 14 i elelel e SCSI ID 7 2 2 Eu SCSI ID 15 al e e Parity enable als se Term power asz SCSI Address Selection pins 1 through 8 host adapter generally uses ID 7 In some systems the boot drive uses ID 0 or ID 1 You can select the SCSI address used by the drive by placing the appropriate jumpers on pins pairs 1 2 through 7 8 as shown in Figure 4 Note SCSI addresses 8 through 15 will only be recognized if dip switch 9 is set to ON See page 17 for details 16 Scorpion 240 Product Manual Parity checking pins 9 and 10 If a jumper is installed on pins 9 and 10 the default setting parity checking is enabled If no jumper is installed parity checking is disabled but parity is still generated by the drive Terminator power pins 11 and 12 I
3. preamplifier for greater signal to noise ratio Introduction Features The Scorpion 240 DDS drive represents Seagate s commitment to engineering reliable and durable tape drive products that implement leading edge technology Key features of the drive include Platform based on state of the art drive mechanism and tape handling components sealed in a dust free enclosure Two models available 5 25 inch full height internal drive STDL42401LW and external subsystem with built in auto sensing worldwide power supply model STDL62401LW ANSI ECMA compliance and capability to write and read DDS 4 DDS 3 DDS 2 and DDS cartridges The Scorpion 240 can use 90 meter DDS 1 media but not 60 meter DDS 1 media Advanced onboard DDS DC hardware using Data Compression Lempel Ziv DCLZ data compression algorithm High speed transfer rates for fast backups 2 75 Mbytes per second typical uncompressed data 5 5 Kbytes per second typical compressed data High performance SCSI burst transfer rate of 10 Mbytes per second asynchronous and 80 Mbytes per second synchronous Flash memory to store setup parameters and enable field firmware upgrades Four head design with RAW error detection and rewrites Three levels of ECC to ensure data integrity Uncorrectable error rate of less than 1 in 1015 bits Custom Seagate designed LSI circuitry to reduce component count and boost drive reliability LVD Ultra Wide SCSI connection Autom
4. 60 dBA maximum NA 10 Gs peak 11 msec 50 Gs peak 11 msec 2 Mechanism The Scorpion 240 drive is designed for maximum reliability and data integrity The following table summarizes the reliability specifications Specification Nonrecoverable error rate Error recovery and control Mean time between failures MTBF Cassette Load Unload Power On Off Magazine Load Unload Mean time to repair MTTR Value lt 1in10 bits Error correction code techniques C1 C2 amp C3 ECC Read after write RAW N Group writing DDS 1 and DDS 2 modes only Error monitoring and reporting error log Retry on read Data randomizer Track checksum 100 000 power on hours at 30 duty cycle 150 000 cycles assuming 60 second swap times 10 000 cycles 25 000 cycles Less than 0 5 hour 10 Scorpion 240 Product Manual Mean Time Between Failures The mean time between failures MTBF is specified at 100 000 power on hours minimum This specification includes all power on and operational time but excludes maintenance periods Operational time is assumed to be 30 percent of the power on time Operational time is the time the tape is loaded on the cylinder tape moving and or cylinder rotating Note The MTBF rating does not represent any particular drive but is derived from a large database of test samples Actual rates may vary from unit to unit Mean Time to Repair The mean time to repair MTTR is the average time required by a
5. audio grade media Audio grade media is not suitable for data or computer backup purposes It is not recommended for use in the Scorpion 240 tape drive Data compression Typical data streams of text graphics software code or other forms of data contain repeated information of some sort whether it is at the text level where you can readily recognize regular repetitions of a single word or at the binary level where the repetitions are in bits or bytes Although most data is unique and random the binary level data exhibits patterns of various sizes that repeat with varying degrees of regularity Storage efficiency is increased if the redundancies or repetitions in the data are removed before the data is recorded to tape Data compression technology functions to significantly reduce or eliminate the redundancies in data before recording the information to tape This increases the amount of data that can be stored on a finite medium and increases the overall storage efficiency of the system With data compression the redundant information in a data stream is identified and then represented by codewords or symbols which allow the same data to be recorded in a fewer number of bits These symbols or codewords point back to the Theory of operations 41 original data string using fewer characters to represent the strings Because these smaller symbols are substituted for the longer strings of data more data can be stored in the same physica
6. damage Place shipping containers on a flat clean stable surface then carefully remove and verify the contents against the packing list If any parts are missing or the equipment is damaged notify your Seagate representative Always save the containers and packing materials for any future reshipment Installing an internal Scorpion 240 Internal drive installation involves three main steps 1 2 3 Configuring the drive Mounting the drive Connecting the power and interface cables Note The Scorpion 240 is available with several different front bezel configurations The illustrations here show one possible configuration However installation procedures are the same for all bezel configurations 14 Scorpion 240 Product Manual Guidelines and cautions The following guidelines and cautions apply to handling and installing the Scorpion 240 internal drive Keep them in mind as you install the drive e Internal drives contain some exposed components that are sensitive to static electricity To reduce the possibility of damage from static discharge the drives are shipped in a protective antistatic bag e Do not remove the drive from the antistatic bag until you are ready to install it e Before you remove the drive from the antistatic bag touch a metal or grounded surface to discharge any static electricity buildup from your body e Hold the drive by its edges only and avoid direct contact with any electronic c
7. density recording all tape space is used by dense overlapping tracks at alternating azimuth angles and 2 high speed searches Using second generation signal processing and custom LSls for efficient circuit layout and increased reliability with low power consumption These LSIs are quad flat pack QFP designs that use complementary metal oxide semiconductor CMOS technology Implementing the DDS 4 format Using flash memory devices for easy firmware upgrades Storing configuration information in the onboard nonvolatile memory Enabling the user to access configuration information stored inside the drive using the SCSI MODE SENSE command and to program the flash memory using the SCSI MODE SELECT command Implementing custom ECC 1 2 and 3 and other error correction techniques Embedding a full LSI SCSI controller with capability for SCSI 2 command sets in single ended and low voltage differential LVD SCSI DDS DC models Embedded 40 Mhz ARM CPU with cache 10 Mbyte SDRAM data buffer The rest of this chapter describes the Scorpion 240 DDS 4 drive in more detail and provides implementation specific information Scorpion 240 Product Manual The DDS 4 drive mechanism The Scorpion 240 uses the helical scan recording method with a four head cylinder design Four direct drive motors and one brush type motor are used in the drive The read and write functions use LSls Engineering decisions such as the modular partitioning of th
8. qualified service technician to diagnose a defective drive and to install a replacement drive The MTTR for DAT products is less than 0 5 hour 30 minutes The Seagate DDS drives are field replaceable units If a problem occurs with a subassembly or component in the drive you should replace the entire unit Return the drive to the factory in its original packaging Contact your distributor dealer your computer system company or your Seagate sales representative to arrange the return DDS Cartridge Specifications DDS drives provide maximum data integrity and reliability when Seagate qualified DDS cartridges are used as the recording media Seagate maintains an ongoing program to qualify manufacturers of DDS cartridges The following cartridges are recommended e DDS 2 data cartridge model M34000 120 meter tape e DDS 3 data cartridge model STDM24G 125 meter tape e DDS 4 data cartridge model STMD40 150 meter tape e DDS 4 cleaning cartridge model 90301 Note Use only a Seagate qualified DDS 4 cleaning cartridge with the Scorpion 240 to avoid damaging the drive Contact your Seagate sales representative for information on qualified DDS data and cleaning cartridge manufacturers and models Specifications 11 Regulatory Compliance These DDS drives comply with the regulations listed in the following table Agency Regulation CSA C22 2 No 950 M89 TUV RHEINLAND EN 60 950 UL 1950 FCC Class A and Class B CE CE complia
9. storage for text graphics or multimedia information e Archival storage DDS Format Standard Compatibility The Scorpion 240 drive supports the DDS 4 DDS 3 DDS 2 and DDS recording formats Compatibility with each of these standards ensures complete write and read interchange of recorded digital data between all compliant drive and media vendors Note The Scorpion 240 can use 90 meter DDS 1 media but not 60 meter DDS 1 media The Scorpion 240 drive supports DDS data compression effectively doubling storage capacity and transfer rates The Scorpion 240 drive complies with the following guidelines and specifications e The DDS recording format standard ANSI ECMA 139 3 81mm Wide Magnetic Tape Cartridge for Information Interchange Helical Scan Recording DDS Format Scorpion 240 Product Manual e The DDS DC recording format standard ANSI ECMA 150 3 81mm Wide Magnetic Tape Cartridge for Information Interchange Helical Scan Recording DDS DC Format using 90 m length tapes e The DDS 2 recording format standard ANSI ECMA 198 3 81mm Wide Magnetic Tape Cartridge for Information Interchange Helical Scan Recording DDS 2 Format using 120 m Length Tapes e The DDS 3 recording format standard ANSI ECMA 236 3 81mm Wide Magnetic Tape Cartridge for Information Interchange Helical Scan Recording DDS 3 Format using 125 m Length Tapes e The DDS 4 recording format specification from ECMA 288 3 81 mm Wide Magnetic Tape Cartr
10. If dip switch 2 is ON the default setting then SCSI commands can be used to enable or disable hardware data compression To prevent hardware data compression from being enabled or disabled by SCSI commands set dip switch 2 to OFF Media recognition system switch 3 The media recognition system allows the drive to determine whether a given tape cartridge conforms to the DDS tape standard Use of non DDS media may appear to give satisfactory results but the inferior specifications of such media can cause data integrity problems Switch 3 enables or disables the media recognition system MRS If switch 3 is ON the default setting the drive reads and writes to MRS media and reads from but does not write to non MRS media If switch 3 is OFF the drive reads or writes both MRS and non MRS media Power on self test enable disable switch 4 Switch 4 enables or disables execution of power on self test diagnostics when the drive is powered on If switch 4 is ON the default setting the drive performs a power on self test If switch 4 is OFF the drive does not perform a power on self test Operating System configuration switches 5 through 8 Switches 5 through 8 are used to configure the drive for use with certain non Windows operating systems The default setting for all four of these switches is ON SCSI Wide Narrow switch 9 Switch 9 enables or disables SCSI Wide operation on the SCSI bus When switch 9 is ON the default sett
11. Manual All information contained in or disclosed by this document is considered proprietary by Seagate Technology By accepting this material the recipient agrees that this material and the information contained therein are held in confidence and in trust and will not be used reproduced in whole or in part nor its contents revealed to others except to meet the purpose for which it was delivered It is understood that no right is conveyed to reproduce or translate any item herein disclosed without express written permission from Seagate Technology Seagate Technology provides this manual as is without warranty of any kind either expressed or implied including but not limited to the implied warranties of merchantability and fitness for a particular purpose Seagate Technology reserves the right to change without notification the specifications contained in this manual Seagate Technology assumes no responsibility for the accuracy completeness sufficiency or usefulness of this manual nor for any problem that may arise from the use of the information in this manual Following are brief descriptions of the sections in this manual Chapter 1 Introduction provides general information features and an overview on DDS technology Chapter 2 Specifications contains physical performance environmental reliability and power specifications Chapter 3 Installation provides cautions unpacking tips inspection infor
12. SS Seagate SCORPION 2000 Seagate Removable Storage Solutions LLC All rights reserved Part Number 1001282230 Seagate and the Seagate logo are registered trademarks of Seagate Technology LLC Scorpion and the Scorpion logo are trademarks or registered trademarks of Seagate Removable Storage Solutions LLC Other product names are trademarks or registered trademarks of their owners Seagate reserves the right to change without notice product offerings or specifications No part of this publication may be reproduced in any form without written permission from Seagate Removable Storage Solutions LLC Publication Number T 006 October 2000 FCC Notice This equipment generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communications or radio and television reception It has been tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Part 15 of FCC Rules which are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment on and off you are encouraged to try to correct the interference by on
13. agazine into the autoloader For more information on ejecting a magazine see Ejecting the magazine on page A 18 LOADER ERROR There is a problem with the autoloader hardware For additional 04 XX XX information contact Seagate technical support LOAD TAPE X The tape drive is loading the tape cartridge from slot X MEDIA ERROR There is a problem with the tape cartridge For additional 03 XX XX information contact Seagate technical support NO MAGAZINE There is no magazine in the autoloader 30 Scorpion 240 Product Manual LCD Message Description READ TAPE X The tape drive is reading from a tape READY The autoloader has scanned all cartridge slots in the magazine and is ready to perform an action READY TAPE X There is a tape from slot X in the tape drive and the autoloader is ready to accept commands REPLACE CLEANING TAPE The cleaning cartridge has been used up and must be replaced with a new cleaning cartridge REWIND TAPE X The tape drive is rewinding the tape cartridge from slot X SCAN X The autoloader is sequentially scanning the cartridge slots in the magazine SEARCH TAPE X The tape drive is searching the tape cartridge from slot X SELECT X PUSH ENTER This message displays when you press the Select button Press the Select button repeatedly to display the desired tape number X then press the Enter button to load the selected tape
14. as though it had been turned off and then turned on To force an eject hold down the Eject button for at least five seconds then release the button When you force an eject the following occurs If there is a tape in the drive the Status Panel displays the message UNLOAD TAPE X where X is the number of the magazine slot which held the tape currently in the drive After the tape has been returned to the magazine the display changes to EJECTING MAGAZINE and the magazine is ejected Note Because forcing an eject can interrupt an operation the tape drive might not write the end of data EOD mark on the tape before the cartridge is ejected If the EOD mark is not written on the tape the tape might be formatted incorrectly and the data on the tape might be lost However the data can usually be read up to the point where the error occurred if a tape is correctly formatted If forcing an eject does not successfully remove a cartridge or the magazine contact Seagate technical support Automatic and manual cartridge loading After cartridges have been loaded into the magazine and the magazine has been inserted into the magazine bay the autoloader can be left indefinitely for unattended write or read operations To load a tape manually press the SELECT button to select the desired tape slot then press the ENTER button 26 Scorpion 240 Product Manual About the front panel buttons This section describes the functio
15. ases it is best to discontinue use of the tape in question and continue with a new tape During a read or restore operation the threshold level is reduced to maximize the likelihood that data can be successfully retrieved from tape The combination of the elevated read threshold during write and reduced threshold during read ensures that data is written with the highest possible margin and that recorded data can be read or retrieved with the highest possible confidence Media Recognition System MRS The Scorpion 240 tape drive includes support for the media recognition system MRS which is unique to DDS products The MRS refers to a series of alternate opaque and clear stripes at the beginning of each tape These stripes are used to classify the media as data or computer grade rather than audio grade media Internal to the drive is a system of optical sensors and electronics to identify the MRS stripes to determine whether the tape is computer grade media The MRS capability can be enabled or disabled using the drive s dip switch When enabled the drive does not allow any write operations to non MRS tape cartridges All DDS 4 150 meter DDS 3 125 meter DDS 2 120 meter and DDS 90 meter tape cartridges have MRS striping to signal that they are computer grade media All DDS tape cartridges with the MRS striping either have the MRS logo the MRS acronym or media recognition system printed on them to readily distinguish them from
16. atic power on self test Support for TapeAlert Certified Solutions 4 Scorpion 240 Product Manual Scorpion 240 drive models The Scorpion 240 is available as a 5 25 inch full height internal drive Figure 1 or as an external standalone drive unit with built in power supply Figure 2 Figure 1 Internal Scorpion 240 drive for full height 5 25 inch drive bay Figure 2 External Scorpion 240 Specifications 5 Specifications 2 Overview This chapter includes technical specifications for the internal and external SCSI drives This information covers the following specifications and requirements e Physical specifications e Power specifications e Drive performance specifications e Environmental requirements e Reliability e DDS cartridge specifications e Regulatory compliance Physical Specifications The physical specifications of the Scorpion 240 internal and external drives are listed in the following table Specification Internal drive External drive Height 3 25 in 82 5 mm 4 80 in 121 9 mm Width 5 75 in 146 mm 9 75 in 248 mm Length 8 80 in 223 5 mm 13 38 in 340 mm Weight 4 5 Ib 2 05 kg 8 1 Ib 3 67 kg Note The internal drive dimensions do not include the front bezel which is approximately 3 38 X 5 89 X 0 27 inches Figure 3 on the following page shows the mounting dimensions of the internal drive Scorpion 240 Product Manual
17. ay ssseesseesseeseeseesensrten nesr nsennsennnsnnnernnnrnnnnssnnnena 28 LCD display backlighting cccccecceeceseeeceseeeeeeeeeeeeeseaeeeeaaeseeeeeseaeeesaeeeenaeteneees 29 ECD display MesSages sii saint EEN 29 Configuring autoloader features using the LCD display ccseeeseeeereeee 30 Cleaning the tape drive ccceecceceseceeeeeeeneeceeeeeeeaeeeeaaeceeeeseaeeeeaaesseneeseeeeesaeseeneeesaes 31 Cleaning procedure ceecceecceceeeceeeeeeeeeeeeeeeecaeeeeaaeseeaesseneeceeeeesaeseeaaesseneeesaees 31 DDS 4 cartridge Information 32 DAT cartridge Compatibility 0 cece ceceeseceeeeeeeeeeeeeeeeeeeeeeaeeeeeeeaneeeeeeseeeeeeeeneeees 32 Write protecting the DAT cartridge and magazine eeeeeeeeeeeeeeeneeeresreene 33 Preparation for SHIPPING 2 0 2 2 cc eeeeeeneeeeeeneeeeeeeaeeeeeeaaeeeeeeaaeeeeeeaaeeeeeeaaeeeeeeaeeeeneaeeeeneaa 34 Theory of operations 35 OVO IVI OW vas ei denen dee degen Bleach ed dap te vias vast ee dere deser eden ddasareakdegensegdavaes ge 35 The DDS 4 drive mechanism ccecceceeeeeceeeeeeeeeeeeeeeaeeeeeaeseeeeeseaeeesaeeseneeesaees 36 Motors and Control CirCuits ceeeeeeeee ence cece eee eeeeeeaeeeeeeeaeeeeeeaaeeeeeaaeeeeetaeeeeeenaeeeenes 38 TIMING trACKING circuit 38 Signal processing electronics cecccceccceeeeeceeeeeceeeeeeeaeeeenaeseaeeseeeeseaeseenaeenenees 38 Flas hi MO MOry sists cartes i esd aed cede ie ead ve eee eee ee ees 39 EE 39 Rea
18. button In the CONTRST menu you can make the LCD brighter by pressing the Enter button repeatedly until the desired contrast is displayed To make the LCD darker press the Select button repeatedly until the desired contrast is displayed Drive Operation and Maintenance 31 In the AUTO LD menu you can enable or disable automatic loading of tape cartridges from the magazine into the tape drive Note This feature can only be used to automate tape loading if application software to support the loader operation is not available To turn on the autoload function select ON and then press the Enter button After the magazine is inserted tape 1 will automatically be loaded into the drive To turn off autoload mode select OFF and then press the Enter button In this mode tapes can only be loaded or unloaded via the front panel or using application software that has autoloader support In the DOOR menu you can lock the autoloader door by selecting LOCK and pressing the Enter button You can unlock it by selecting UNLOCK and pressing the Enter button Cleaning the tape drive e f excessive magnetic dust or debris collects at one or more of the tape heads your drive may not be able to read from or write to tape or may experience excessive errors When the cleaning threshold is exceeded the clean LED will remain ON lit continuously and the LCD display will show the message CLEANING REQUIRED Note A slo
19. cartridges are slightly bigger than a credit card Figure 20 shows key features of the DDS cartridge File Protect Hole Restorable Recognition Datum Holes De Holes 1 2 3 4 A Slider Lock 1 Lid Lock Slider Lock 2 Locked by Slider Figure 20 DDS cartridge design features 42 Scorpion 240 Product Manual Qualified DDS cartridges are designed with specific write protect lid and other features for information interchange and are tested to comply with the ANSI DDS specifications The Scorpion 240 drive also recognizes all MRS cartridges when MRS is enabled MRS cartridges have a series of alternate opaque and clear stripes at the beginning of the tape These stripes classify the media as data grade rather than audio grade media Figure 20 shows the four recognition holes that allow the drive sensors to identify the type of tape its magnetic thickness and whether the tape is prerecorded unrecorded or is a cleaning cartridge Other cartridge features allow the drive to determine the cartridge in BOT and EOT points The cartridge also provides for write protection so that existing data on the cartridge is not overwritten See Figure 21 A write protected cartridge allows the existing data to be read but does not allow new data to be written to the tape Write Write Note A write protected cartridge Enabled Protected prevents the error log in the system area from being updated Figure 21 Write Prot
20. d Afer WIG eege Ora a E T E AT E E Delega EAE TAE EERE 39 Media Recognition System MP 40 Data COMpPIeSSION ereina er E eA E EEEN 40 About the DDS data cartridge cececeeeeceeeeeeeeeeeeeeeeeeeeeesaaeeeeaeeseeeeesaeeseaaeeeeeeeeaas 41 V Contents Figures Figure 1 Internal Scorpion 240 drive for full height 5 25 inch drive Day 4 Fi re nee reel 4 Figure 3 Internal Scorpion 240 Drive Dimensions renr rennteenneennernrernnernneenrennrennne 6 Figure 4 Jumper settings for internal Scorpion 240 15 Figure 5 Dip switch settings for internal Scorpion 240 16 Figure 6 Mounting holes and dimensions for the internal Scorpion 240 18 Figure 7 Interface connector on internal Scorpion 240 19 Figure 8 Two SCSI termination examples for internal Scorpion 240 19 Figure 9 Rear panel of external Scorpion 240 20 Figure 10 SCSI termination examples for external Scorpion 240 21 Figure 11 Front view of internal Scorpion 240 autoloader external drive iS similar 22 Figure 12 Inserting a cartridge into the autoloader magazine 01 eeeeecececececeennneeeetnneeeesnnenesetnneeeeetnneneeeenneeesnaees 23 Figure 13 Loading a magazine into the auioloader 24 Figure 14 Autoloader Front Panel s oss nosh os aie esi si Si es eh ish Sdn eee 26 Figure Ee TEE 28 Figure 16 Write protect tab on the DAT cartridge ccccscccesesnceeeeneeeceennneeeeennneeeesneneeeenneeeeeenneeeettntnnnesenenaees 33 Figure 17 W
21. e drives is provided in the Scorpion 240 SCSI manual Setting the SCSI ID Make sure that the drive is turned off then set the SCSI ID for the drive using the push button switch on the back of the external drive Figure 9 shows this switch as well as the two SCSI interface connectors on off switch and the power cord connector Note The drive must be restarted for any change in SCSI ID to take effect SCSI ID selector On Off switch 68 pin wide SCSI connectors AC Power connector Figure 9 Rear panel of external Scorpion 240 Installation 21 Connecting the SCSI interface cable The Scorpion 240 provides two 68 pin shielded connectors on the rear panel of the enclosure Either connector can be used as a SCSI IN or SCSI OUT connection you can use either connector to attach the drive to the host computer or to another SCSI device Turn off your computer and all SCSI devices Then attach a SCSI cable from the host adapter or from another unterminated SCSI device to the Scorpion 240 Note The Scorpion 240 will not operate in a SCSI 1 environment SCSI Termination If the Scorpion 240 is the last device or the only device in a SCSI chain you must install a terminating plug on the unused SCSI connector See Figure 10 for two SCSI termination examples You can purchase a terminator for the Scorpion 240 part number 10006525 001 on the web at http ouytape sea
22. e electronics and use of surface mount low power commercial and custom LSIls allow the drives to conform to the industry accepted 5 25 inch full height form factor These design features are also important contributors to the overall reliability durability and performance of the drive The Scorpion 240 mechanism is designed for minimum tape wear and prevention of damage to the tape The modes or operational states such as stop rewind and play reduce mechanism and tape wear Fewer mechanical mode changes result in less wear on key drive components In some cases the need for a mode change is circumvented using the Pause mode which stops the tape without activating the mechanism All mode selection is performed by the controller firmware The host computer does not directly control mode selection A custom timing tracking design combined with the four head cylinder design implements the specifics of the DDS 4 recording format standard and provides the precision required to perform seamless appends or the ability to add subsequent recorded data frames immediately adjacent to the last data frames written on the tape A bank of jumpers is available at the rear of the drive These jumpers allow you to set the SCSI ID for the drive and to change configuration choices Refer to chapter 3 for information about setting these jumpers By using the jumpers you can also enable terminator power if needed The default for internal models is with t
23. e or more of the following measures e Reorient the receiving antenna e Relocate the computer with respect to the receiver e Move the computer into a different outlet so that the computer and receiver are on different branch circuits If necessary you should consult the dealer or an experienced radio television technician for additional suggestions You may find the booklet How to Identify and Resolve Radio TV Interference Problems prepared by the Federal Communications Commission helpful This booklet Stock No 004 000 00345 4 is available from the U S Government Printing Office Washington DC 20402 Changes or modifications made to this equipment which have not been expressly approved by Seagate Technology may cause radio and television interference problems that could void the user s authority to operate the equipment Further this equipment complies with the limits for a Class B digital apparatus in accordance with Canadian Radio Interference Regulations Cet appareil num rique de la classe B est conforme au R glement sur brouillage radio lectrique C R C ch 1374 The external device drive described in this manual requires shielded interface cables to comply with FCC emission limits Additional Warnings e To prevent fire or electrical shock hazard do not expose the unit to rain or moisture e To avoid electrical shock do not open the cabinet e Refer servicing to qualified personnel About This
24. e you turn on the computer When the autoloader is first started the following events should occur 1 The Clean Media and Drive LEDs light up for two seconds then start flashing 2 The LCD display shows the current SCSI ID followed by the message WAITING SELFTEST 3 Ifa magazine is loaded the drive determines which slots in the magazine contain cartridges During this time the LCD display shows the message SCAN X where X is the number of the cartridge slot currently being scanned from 1 to 6 4 As each cartridge is identified by the drive the cartridge s slot number is displayed on the LCD 5 When all tests are completed the LCD display shows the message READY if a magazine is loaded If no magazine is loaded the message NO MAGAZINE is shown Drive Operation and Maintenance 23 Note If your computer does not recognize the autoloader you may need to load the appropriate autoloader module for your software package See your software installation manual for additional information Using cartridges and magazines Applying labels When applying labels to a cartridge observe the following precautions to prevent the cartridge from getting stuck in the autoloader e Apply labels firmly only in recessed label areas e Do not let labels extend beyond label areas or fold over the edge of a cartridge e Do not apply labels over other labels Caution Do not place any labels on the autoloader
25. ect Tab on the DDS Cartridge SS Seagate Seagate Removable Storage Solutions LLC 1650 Sunflower Avenue Costa Mesa California 92626 USA Part Number 1001282230 Printed in USA
26. ed Flashing The cleaning cartridge in the drive has exceeded its useful life Replace the old cleaning cartridge with a new one Media ON lit A cartridge is inserted and is not generating excessive errors Flashing The drive could not write the tape correctly a write error has occurred Use a Seagate approved cleaning cartridge to clean the drive Drive ON lit The drive is reading or writing the tape normally Flashing A hardware fault occurred Rapidly About the front panel LCD display Figure 15 shows the types of information shown on the front panel LCD display Indicates whether Indicates slot Indicates active catridge or number of whether data magazine is active cartridge compression write protected w Else Sele is active Message display Bar graph indicating current Indicates position of tape head whether relative to beginning tape is in of partition motion Figure 15 LCD display features Drive Operation and Maintenance 29 LCD display backlighting Backlighting on the LCD display is turned on automatically when the autoloader is first powered on and whenever a front panel button is pushed The backlight remains on for two minutes and then shuts off automatically unless a front panel button is pressed LCD display messages The table on the following pages describes the messages that may be shown on the LCD display The messages are listed in alphabetical order An X indicat
27. erminator power disabled For external drives the default is with terminator power enabled Note The Scorpion 240 comes supplied with a terminator power fuse to provide protection from component damage in case the SCSI cable is connected incorrectly Two rectangular front panel light emitting diodes LEDs indicate a drive busy status and tape cartridge in place status When blinking these LEDs also function as fault indicators Refer to Chapter 4 for a summary of the function of these LEDs The external subsystem also provides an additional LED on the front panel to indicate cleaning status Helical scan recording four head design In helical scan recording the heads are positioned opposite one another ona cylinder which is tilted approximately 6 degrees from the vertical plane and rotates counterclockwise at 10 000 revolutions per minute rpm At the same time the tape moves slowly 20 375 mm per second in DDS 4 mode in a horizontal path around part of the cylinder This simultaneous motion of cylinder and tape results in the head traveling across the width of the tape in a helix shaped motion The cylinder is designed with four long life heads two read and two write heads These heads are set opposite one another with a rotation sequence of write A read B write B read A or write A new read B old write B new read A old The Theory of operations 37 advantage of this design is that a RAW check is performed immediatel
28. es the number of the currently active cartridge slot LCD Message CASSETTE INSTALL PROBLEM Description A cartridge has been inserted into the magazine incorrectly Eject the magazine from the autoloader see page A 18 then remove the cartridge from the magazine and reinsert it correctly CHECK DOOR The autoloader door is open CLEANING The autoloader is loading a cleaning cartridge into the drive CLEANING REQUIRED The tape drive requires cleaning DOOR LOCKED The autoloader door is locked DOOR UNLOCKED The autoloader door is unlocked DRIVE ERROR There is a problem with the tape drive For additional 04 XX XX information contact Seagate technical support ERASE TAPE X The tape drive is erasing the tape cartridge from slot X EJECTING MAGAZINE The autoloader is ejecting the tape magazine EJECT PRESS ENTER A tape resides in the drive and the Eject button has been pressed Eject confirmation is required before the tape can be ejected EJECT PREVENT The autoloader is preventing you from ejecting the magazine because the software has enabled PMR Prevent Media Removal FAN FAILURE There is a problem with the autoloader fan Contact Seagate technical support INSERT EMPTY MAGAZINE The autoloader cannot unload a tape from the tape drive to the magazine because the magazine in the autoloader is fully loaded Eject the magazine then insert an empty m
29. esent Caution If you push the Eject button while the Drive LED is ON you will interrupt any host operation causing an application error It may not be possible to append to the tape if a write operation is aborted in this way Note If a SCSI Prevent Media Removal command has been issued the Drive LED remains ON and the eject button is disabled so that the tape cannot be accidentally ejected e If the Drive LED is flashing rapidly a hardware fault has occurred If this occurs immediately after powering on the drive then the Power On Self Test switch is enabled and a Power On Self Test has failed The front panel LEDs may be flashing together If this occurs contact the Seagate Technical Support department for information If the Drive LED is flashing rapidly during drive operation you should attempt to remove the tape by pressing the Eject button If the tape does not eject within 2 minutes press and hold the Eject button 28 Scorpion 240 Product Manual continuously for more than 5 seconds The tape should eject within 40 seconds Contact Seagate Technical Support for more information LED Code summary The following table summarizes LED flash codes for the Scorpion 240 LED Action Meaning Clean ON lit Cleaning is required because the drive has been operated for at least 25 hours DDS 1 and DDS 2 or 50 hours DDS 3 or DDS 4 Flashing The internal error rate threshold has been Slowly exceeded and cleaning is requir
30. flux transitions per mm 147 34 tracks per mm Read after write Reed Solomon ECC C3 3 levels lt 1 in 1015 data bits Computer grade 4DD mechanism 2 read heads 2 write heads DDS 4 Helical scan R DAT 2 9 in x 2 1 in x 0 4 in 5 500 Kbytes per sec DC ON 80 Mbytes per sec max 10 Mbytes per sec max 400x normal 3260 mm per sec lt 30 sec lt 40 sec lt 40 sec 10 000 RPM all DDS modes 20 375 mm per sec 20 4 mm per sec Specifications Environmental Requirements The following table lists the environmental specifications for Scorpion 240 Specification Temperature Thermal gradient Relative humidity Maximum wet bulb temperature Altitude Vibration Sweep test Dwell test 15 minutes Acoustic level idling A wt sum Acoustic level operational A wt sum Shock 1 2 sine wave 1 Mechanism and media Reliability Operational 41 to 113 F 5 to 45 C 2 C per min 8 C per hr no condensation 20 to 80 noncondensing Nonoperational 40 to 149 F2 40 to 65 C Below condensation 0 to 90 noncondensing 78 8 F 26 C No condensation 100 to 4 575 meters 300 to 15 200 meters power off 1 5 G 5 to 500 Hz 1 20 mm peak to peak 5 17 Hz 0 73 G peak 17 to 150 Hz 0 50 G peak 150 500 Hz sweep rate 8 decades per hour 0 90 mm peak to peak 5 17 Hz 0 55 G peak 17 to 150 Hz 0 25 G peak 150 500 Hz 47 dBA maximum NA
31. g holes and dimensions for the internal Scorpion 240 Connecting the SCSI interface cable Scorpion 240 drives can be used with two different types of SCSI interfaces Ultra2 SCSI LVD or Wide 16 bit single ended SCSI The drive can automatically detect whether it is connected to an LVD or single ended wide SCSI bus Note The Scorpion 240 will not operate in a SCSI 1 environment Installation Connecting to a 68 pin Wide SCSI or LVD bus To connect the drive to an LVD or SCSI wide bus first turn off all power to the drive and computer Then attach the interface cable to the SCSI interface connector on the back of the drive see Figure 7 Ei a Power connector pin 34 pin 1 0000 pin4 pint pines Ultra2 SCSI 68 pin pin 35 Wd 12V high density connector pin 3 GND pin 2 GND 5V return 12V return Figure 7 Interface connector on internal Scorpion 240 SCSI Termination The internal Scorpion 240 does not provide SCSI termination For this reason it should not be the last device on a SCSI chain Two termination examples are shown in Figure 8 below If the drive is the only SCSI device attach the drive to the connector which is next to last on the SCSI chain and attach a multi mode terminator to the last connector in the chain SCSI device termination enabled H SCSI Term
32. gate com External SCSI device SCSI Terminators External External Tape Drive Tape Drive External SCSI device CSI Controller f termination disabled Internal A i SCSI Controller SOSI device termination enabled termination enabled Example 1 SCSI termination Example 2 SCSI termination in a system that has only in a system that has both external SCSI devices internal and external SCSI devices Figure 10 SCSI termination examples for external Scorpion 240 Connecting the power cord Attach the power cord securely to the power connector on the back of the drive The location of the power connector is shown in Figure 9 on the previous page 22 Scorpion 240 Product Manual Drive Operation and Maintenance 4 This section describes how to use your Scorpion 240 autoloader and DDS 4 cartridges It also explains how to interpret the LEDs and the display on the front of the drive which are shown in Figure 11 EJECT Button EI E E a LIS pa eo gt SELECT Button L eH ENTER Button LCD Clean e Drive Display LED Media LED green LED amber 9 green Figure 11 Front view of internal Scorpion 240 autoloader external drive is similar Starting the autoloader Turn on all SCSI devices attached to your computer befor
33. hat automatically detects a loss of supply voltage from the host Temporary loss of supply voltage or voltage spikes may result in the drive electronics being reset to their initialized state but shall under no circumstances result in a loss of recorded data External drive The external Scorpion 240 has a built in power supply that senses the incoming voltage and automatically adapts to voltages within the range of 100 to 240 volts 50 to 60 Hz The following table lists its power specifications Specification AC Input Voltage 100 Japan 120 US 240 European AC Input Current 100 milliamps 85 milliamps 170 milliamps AC Input Power 10 0 watts 10 0 watts 10 0 watts Drive Performance Specifications Scorpion 240 Product Manual The following table lists the specifications for the Scorpion 240 autoloader and tape drive Specification Capacity six cartridge magazine 2 1 data compression 90 m MP 120 m MP 125 m MP 150 m MP Flux density DDS 4 Track density DDS 4 Error recovery Recording unrecoverable errors Tape drive type Head configuration Recording format Recording method Cartridge Transfer rate sustained Synchronous transfer rate burst Asynchronous transfer rate burst Search speed max Average access time 90 m cartridge 120 m cartridge 125 m cartridge Drum rotation speed Tape speed Head to tape speed Value 24 0 Gbytes 48 0 Gbytes 144 0 Gbytes 240 0 Gbytes 6 004
34. idge for Information Interchange Helical Scan Recording DDS 4 Format Note For the latest ECMA standards see the ECMA web site at http Awww ecma ch Scorpion 240 Capacity and Transfer Rates The Scorpion 240 provides the following capacities and transfer rates depending on recording mode and tape length fa Recording Mode DDS DDS 2 DDS 3 DDS 4 Tape length 90 meters 120 meters 125 meters 150 meters Capacity 2 0 Gbytes 4 0 Gbytes 12 0 Gbytes 20 0 Gbytes native Capacity 4 Gbytes 8 Gbytes 24 Gbytes 40 Gbytes compressed Transfer rate 915 915 2 75 2 75 native Kbytes sec Kbytes sec Mbytes sec Mbytes sec Note 60 meter DDS tape cannot be used with the Scorpion 240 In data compression mode the Seagate Scorpion 240 drive typically doubles the storage capacity and transfer rate of the native uncompressed operation Tape capacity and sustained data transfer rate are dependent upon the characteristics of the files being compressed along with system parameters such as the speed of the host the operating system and the application software used The Scorpion 240 drive also offers synchronous or asynchronous SCSI transfers with a high speed burst data transfer rate of 80 Mbytes per second The Scorpion 240 provides superb reliability through three levels of error correction code ECC and the four head design which provides for read after write RAW error detection and correction The Scorpion 240 also includes a flying
35. inator ys 2 ape drive 777 77 NXE L termination disabled disabled termination SCSI Controller termination enabled SCSI Controller termination enabled Figure 8 Two SCSI termination examples for internal Scorpion 240 Connecting a power cable Attach a four pin power cable to the power connector on the back of the drive see Figure 7 above The recommended power connector for the internal Scorpion 240 is an AMP 1 48024 0 housing with AMP 60617 1 pins or equivalent 20 Scorpion 240 Product Manual Installing an external Scorpion 240 The external Scorpion 240 is a compact external SCSI device that connects to the host computer as a turnkey subsystem Installing the external drive involves three simple steps 1 Configuring the drive 2 Connecting the SCSI interface cable 3 Connecting the power cord Configuring the external Scorpion 240 The following is the default configuration for the external Scorpion 240 Drive configuration Default setting SCSI ID 6 Media Recognition System MRS checking Enabled Parity checking Enabled Data compression Enabled Power on self test diagnostics Enabled Host operating system Windows 95 98 NT 2000 Termination power Supplied to the SCSI bus Note Some of these configuration settings can be changed using the SCSI Mode Select command SCSI command information for thes
36. ing the drive is capable of operating in Wide 16 bit SCSI mode When switch 9 is OFF the drive will only operate as a Narrow 8 bit SCSI device Note If switch 9 if set to OFF the drive can only use SCSI ID values 0 through 7 Inquiry string switch switch 10 Switch 10 is used to select the Vendor ID that the drive returns when queried with a SCSI Inquiry command When switch 10 is ON the default setting the Vendor ID will be SEAGATE DAT When switch 10 is OFF the Vendor ID will be ARCHIVE Python The ARCHIVE Python Vendor ID may be used by independent software vendors to provide software compatibility with previous Seagate DDS tape drives 18 Scorpion 240 Product Manual Mounting an internal Scorpion 240 The internal Scorpion 240 is designed to be mounted horizontally in a 5 25 inch full height drive bay using four side or bottom mounting screws Figure 6 below shows the locations of the mounting screw holes and mounting dimensions for the internal drive h i ei LO E o N 4 e Qo F Ko y P GE S Qj o Si 2 1s A 1 i 45 5 0 25 79 5 0 25 MOUNT HOLE 70208 203 2 0 25 M3 4 PLACES a 224 0 max a CH 4 l 1 9 mm F x SIE 5 l i MOUNTING HOLE 45 5 0 25 79 5 0 25 M3 4 PLACES 203 2 0 5 224 0 max Sc Lag Figure 6 Mountin
37. into the drive SELECT PREVENT The autoloader is preventing you from selecting a tape to load because a Prevent Media Removal command has been issued by the host This prevents the tape that is in the drive from being ejected UNLOAD TAPE X The tape drive is unloading the tape cartridge from slot X UPDATING FIRMWARE The autoloader or tape drive firmware is being updated WAITING This message displays while the tape drive is performing a SELFTEST Power On Self Test POST during startup WRITE TAPE X The tape drive is writing to the tape cartridge from slot X Configuring autoloader features using the LCD display To configure the autoloader using the LCD first make sure that there is no magazine installed in the autoloader then press and hold the Select button for five seconds You can then use the Select button to cycle through the following menus VERSION LANGUAG Language CONTRST Contrast AUTO LD Auto Load and DOOR Each of these is described below To display a particular menu select the menu item and press the Enter button In the VERSION menu you can use the Select button to view the name of the autoloader its SCSI ID its firmware level and the autoloader serial number In the LANGUAG menu you can enable the autoloader to display messages on the LCD in English French German Italian Portuguese Japanese or Spanish by scrolling to the appropriate language and pressing the Enter
38. is advanced over the entire tape path The drive does not rewind a cleaning cartridge After about 30 cleaning cycles the entire tape is used up and you must purchase a new cleaning cartridge If you insert a cleaning cartridge that has been used up the cleaning cycle will not be carried out Instead the Clean LED will flash rapidly and the LCD will display the message REPLACE CLEANING TAPE The cleaning cartridge will be returned to the magazine the Clean LED will stay on and the LCD will display the message CLEANING REQUIRED In this case press the Eject button to remove the magazine and replace the old cleaning tape with a new one Automated cleaning If your backup and restore software includes a tape drive head cleaning feature you can use the software to clean the drive Some software packages are preprogrammed to use Slot 6 to clean the drive automatically The software prompts the autoloader changer to load the cartridge into the tape drive and initiates the cleaning cycle When the cleaning cycle completes the tape drive ejects the cleaning cartridge and the changer automatically returns the cartridge to the magazine slot Refer to your software documentation for details DDS 4 cartridge information DAT cartridge compatibility Seagate DDS 4 drives are designed to use data grade DDS cartridges such as those listed below Note 60 meter DDS 1 tapes cannot be used with this drive e Model M32000 DDS 1 90 mete
39. l space Some important benefits result from data compression in DAT drives e The same amount of information can be stored on a smaller length of tape e More data can be stored on a given length of tape e Performance can more closely parallel to that of high transfer rate computers More information can be transferred in the same time interval For more information on data compression in Scorpion drives see the Scorpion 40 Product Manual part number 10006598 001 Rev B About the DDS data cartridge The Scorpion 240 tape drive is designed to use data grade DDS cartridges which comply with the specifications in the 3 81 mm Helical Scan Digital Computer Tape Cartridge for Information Interchange ANSI X3B5 89 156 standard Seagate recommends Seagate qualified data grade DDS DAT cartridges Model M32000 90 meters and Model 34000 120 meters Model 324000 125 meters to ensure optimal data integrity and reliability Seagate also recommends the use of a Seagate qualified DDS head cleaning cartridge Model STDMCL You can order both DDS data and head cleaning cartridges from Seagate Note Proper maintenance of the drive requires that you use the DDS head cleaning cartridge after every 50 hours of read write operation and whenever the rectangular green cartridge in place LED flashes during operation These small approximately 2 inches x 3 inches x 0 4 inch cartridges house magnetic tape that is 3 81 mm 0 150 inch wide The DDS
40. ly the drive requires cleaning Use only a Seagate approved cleaning cartridge to clean the drive as described on page 31 e If the Clean LED is flashing slowly the tape cartridge currently in use has exceeded a predefined soft error threshold This signal is a warning only and does not indicate that data has been lost If you see this signal remove the tape at your earliest convenience and clean the drive using a Seagate approved DDS cleaning cartridge If after cleaning the drive and reinserting the original data cartridge the Clean LED still flashes then you should use a new cartridge for future backups The Media LED functions as follows e If the Media LED is ON lit continuously a DDS cartridge has been inserted and the drive is operating normally e If the Media LED is flashing rapidly the drive could not write the tape correctly maximum rewrite count exceeded and the write operation failed Clean the drive heads using a Seagate approved DDS cleaning cartridge If you reinsert the original data cartridge and the LED continues flashing insert a new data cartridge and retry the operation Note As routine maintenance you should clean the drive heads after every 25 hours of operation when using DDS 1 or DDS 2 tapes or after every 50 hours when using DDS 3 or DDS 4 tapes The Drive LED functions as follows e If the Drive LED is ON continuously the drive is reading or writing the tape that is SCSI or tape activity is pr
41. magazine since this may cause the tape mechanism to jam Loading cartridges in a magazine Use only approved DDS cartridges in the Scorpion 240 Approved Seagate cartridges are listed on page 10 To load cartridges into the magazine follow these steps 1 Make sure that the cartridges and magazine are write protected or write enabled as necessary See page 33 for details 2 Hold the magazine so that the slot numbers on the side of the magazine are right side up 3 Insert the cartridge into the magazine with the door facing toward the magazine slot as shown in Figure 12 SC Cartridge door Figure 12 Inserting a cartridge into the autoloader magazine 24 Scorpion 240 Product Manual Loading a magazine into the autoloader Caution Do nofload a magazine if all the LEDs are flashing this indicates that the drive is performing a power on self test Make sure the drive is powered on and operating normally Hold the magazine so that the slot numbers are right side up Write protect or write enable the magazine as appropriate See page 33 for details Insert the magazine into the autoloader with the triangles facing into the autoloader bay as shown in Figure 13 Gently push the magazine into the autoloader bay until the autoloader mechanism senses the magazine and pulls it inside Figure 13 Loading a magazine into the autoloader Ejecting a cartridge or magazine To eject the magazine from the autoloader
42. mation and installation connection steps Chapter 4 Drive Operation and Maintenance explains the operation of the drive and describes necessary maintenance procedures Chapter 5 Theory of Operations details the functional operation of various components of the drive iii Contents Contents Introduction 1 MEIER ENEE np died cn ne eee 1 DDS Format Standard Compatibility 0 0 0 0 ceceeeececeeeeeeeeeeeeeeseeeeeseeesaeeneeeeeaes 1 Scorpion 240 Capacity and Transfer Rates cccccceceeeeeeeeeeeeeeeceeeeeeeaeeeeneeeeeeees 2 FOAtUeS bc coctects E audi cathe ath ae hea eet 3 Scorpion 240 drive models cccceeeeeeeeeeeeeeeeeeaeeeeeeeseeeeecaeeeeaeeseaaeseeeeeseaeeeseaeeseneeeeaes 4 Specifications 5 OVEIVICW eeneg eR Ne peal E dE e eee ae pel se 5 Physical Specifications si aana a eaaa eea a Eaa E a Ta RA aa 5 Power Specifications aisia isase a en aari aeai N i aE aia SE Taa aaa a E 6 due e TE 6 SAUER 7 Drive Performance Specifications cccccccecceeeeeeeeseeeeeeeeeeeeeeaeseeeeeseeeeeseaeeseeeseenees 8 Environmental Requirement ccccceceeseeceeeeneeeeeeeeeeeeeeaeeeeeeaeeeeeeaeeeeeeaeeeeeeaeeeeneaa 9 Reliability EE 9 Mean Time Between Falures 10 Mean Time to REDAT eran eE E EAE E IA EEE EA 10 DDS Cartridge Specifications cccceccceccceeeeeeeeeeeeeeeeeeeceaeeesaaeeseaeeseeeeeseaeeesaeeseneeeeaes 10 Regulatory Compliance ccccccccececeeceeceeeeeeeaeeeeeeeeeeeeesaaeeeeaaeseeeeeseaeee
43. move down to the word DOOR as shown below CONTRAST AUTO LD gt DOOR Press the Enter button The LCD should display the following sub menu gt DOOR LOCK UNLOCK Press the Select button once to move the cursor to LOCK and then press the Enter button The display returns to the menu shown in step 3 above Wait 5 seconds The LCD screen will again display the message NO MAGAZINE After another 5 seconds the LCD will display the message DOOR LOCKED Switch off the autoloader Tap the door to make sure it has been successfully locked The door is now locked closed and the autoloader is ready to be packed up and shipped The door is automatically unlocked when the drive is restarted Theory of operations 35 Theory of operations 5 Overview The Scorpion 240 tape drive design integrates DAT technology helical scan recording method into a true computer grade data storage peripheral with industry standard data compression capability These drive designs are the result of Combining the economies of scale for key components such as the cylinder heads and signal processing LSIs with a computer grade drive 3 5 inch using four direct drive motors and electronic tape path control for the demanding computer storage environment Implementing a four head design to provide read after write RAW error correction and to maximize the benefits of the helical scan recording method namely 1 high
44. nce 1 Required compliance for external model verification on file for internal models Use these drives only in equipment where the combination has been determined to be suitable by an appropriate certification organization for example Underwriters Laboratories Inc or the Canadian Standards Association in North America You should also consider the following safety points e Install the drive in an enclosure that limits the user s access to live parts gives adequate system stability and provides the necessary grounding for the drive e Provide the correct voltages 5 VDC and 12 VDC based on the regulation applied Extra Low Voltage SEC for UL and CSA and Safety Extra Low Voltage for BSI and VDE if applicable Installation Installation Introduction 3 This chapter explains how to install the Scorpion 240 internal and external drives The contents are organized as follows Unpacking and Inspection contains general information that you should read before installation Installing the Internal Drives describes how to install the internal drive in a full height drive bay Installing the External Drive describes how to install the external subsystem Unpacking and Inspection Although drives are inspected and carefully packaged at the factory damage may occur during shipping Follow these steps while unpacking the drive Visually inspect the shipping containers and notify your carrier immediately of any
45. ned centered in the track by the timing tracking hardware and firmware 38 Scorpion 240 Product Manual eg Pu tracks Ai y Write head B SSW ER 20 head azimuth Figure 19 Alternating azimuth angles on tape tracks Motors and control circuits The Scorpion 240 drive uses four direct drive brushless motors the capstan cylinder and two reel motors Using these small direct drive motors provides maximum reliability The cylinder motor rotates the cylinder The capstan motor moves the tape The two reel motors turn the tape reels The cylinder capstan and reel servos are controlled by custom ASICs and the motor control firmware The fifth motor in the mechanism is a brush type mode motor This motor controls selects the mechanism mode Because the mode motor is not frequently used and due to space and torque requirements a brush type motor is best suited to this application The mode motor performs the mode changes as directed for example this motor conditions the mechanism to eject the cartridge Timing tracking circuitry The timing tracking circuitry of the drive is designed to provide high precision tracking and head positioning The timing tracking system in conjunction with the four head read after write RAW design provides for reliable high density data recording with maximum storage efficiency Signal processing electronics The signal processing electronics circuitry in the drive is made u
46. ns of the autoloader buttons These buttons are shown in Figure 14 EJECT a Button E E CH A rm 4 as gt gt SELECT i l Button ke ENTER Button LCD Clean Drive Display LED Media LED green ED amber green Figure 14 Autoloader Front Panel Eject button You can use the Eject button to eject the magazine or to unload a cartridge from the drive After pressing the Eject button you must press the Enter button to confirm your request Select button You can use the Select button to select individual tape cartridges by their slot numbers 1 6 to scroll through items from menus on the LCD display and to access loader menus if no magazine is installed Enter button You can use the Enter button to select specific items from menus on the LCD display to load a cartridge into the drive after you have selected the cartridge using the Select button or to confirm that you want to eject the magazine when there is a tape in the drive About the front panel LEDs As shown in Figure 14 the front panel of the Scorpion 240 Autoloader includes three LEDs that provide information during normal and error conditions This section summarizes the LED flash codes used by the Scorpion 240 Drive Operation and Maintenance 27 Clean LED Media LED Drive LED The Clean LED functions as follows e If the Clean LED is ON continuous
47. nternal Scorpion 240 drives are shipped with terminator power disabled no jumper across pins 11 and 12 You can enable terminator power if necessary by placing a jumper across pins 11 and 12 Note The internal Scorpion 240 does not provide SCSI termination and therefore should not be installed as the last device in a SCSI chain See page 19 for details Dip switch settings To change data compression MRS checking power on self test diagnostics operating system settings Wide Narrow SCSI selection or the drive s inquiry string you must use the dip switches on the underside of the internal drive Figure 5 shows the location of dip switches on the underside of the Scorpion 240 Each of these switches is described in detail on the following pages Note Power down the drive before changing jumpers or dip switches Changes take effect when the drive is powered on Data compression DC SCSI DC control Media recognition Self Test ZO Operating system configuration switches Wide Narrow SCSI Inquiry String support e OO Joo P ob Default settings shown te Figure 5 Dip switch settings for internal Scorpion 240 Installation 17 Data compression switches 1 and 2 If switch 1 is ON the default setting hardware data compression is enabled when the drive is powered on If switch 1 is OFF hardware data compression is disabled at power on
48. omponents e f you need to put down the drive lay it on top of the antistatic bag or place it inside the bag Configuring an internal Scorpion 240 Before you install the tape drive in your computer you may need to configure the drive s SCSI ID or other drive features using jumpers or dip switches Default settings The default drive settings for the Scorpion 240 are listed below Drive setting Default condition SCSI ID 6 Media Recognition System MRS checking Enabled Parity checking Enabled SCSI terminator power Disabled Data compression Enabled Power on self test diagnostics Enabled If these default settings are appropriate for your needs skip ahead to Installing an internal Scorpion 240 on page x Jumper settings Configuration jumpers on the back of the drive are used to control the drive s SCSI ID parity checking and SCSI terminator power Figure 4 shows the locations of the jumper blocks for the internal Scorpion 240 Note Power down the drive before changing jumpers or dip switches Changes take effect when the drive restarts Installation Ey sist o Default jumper settings shown SCSI ID 6 parity checking enabled and termination power disabled
49. p of several components The drive s main control microprocessor data engine and data buffer management circuitry are all integrated in a single IC package A single chip DDS formatter LSI communicates with the microprocessor and with the read and write LSIs Other vital components are the high performance SCSI LSI chip the flash memory and the DRAM buffer memory Theory of operations 39 Flash memory Sensors Because the Scorpion 240 uses flash memory the drive firmware can be easily upgraded when new revisions of the firmware are released The flash memory is 1 Mbyte in size You can load new firmware in one of three ways e Using a specially encoded firmware upgrade cartridge e Issuing a SCSI Write Data Buffer command to download the firmware to the flash memory e Through the drive serial port Contact Seagate for information about loading new firmware using a Seagate firmware upgrade cartridge A number of mechanical and optical sensors are integrated in the drive design The cartridge in and cartridge loading sensors are mechanical sensors that determine the position of the loading mechanism The other mechanical sensors report specific information based on detecting the open or closed state of four recognition holes in the DAT cartridge The open or closed state of these holes designate tape type whether the tape is a cleaning cartridge whether the tape is prerecorded and whether the tape cartridge is write protec
50. press the Eject button If a cartridge is in the drive the LCD display shows the message EJECT PRESS ENTER Press the Enter button and wait for the following events to complete 1 2 The tape rewinds to the beginning of partition BOP mark If the tape cartridge is not write protected read only the operating system writes the updated copy of the tape log back to the tape The tape rewinds to the beginning of media BOM and is unthreaded The changer places the cartridge back into the magazine The magazine is ejected If there is no cartridge in the tape drive the magazine is ejected without delay Drive Operation and Maintenance 25 Forcing an eject If you press the Eject button when the tape drive is busy the tape drive first completes the current task before responding to the eject request This way no data is lost However in extreme cases you may need to force an eject to unload a cartridge even at the risk of losing the data on the cartridge A forced eject should only be tried when there is no other way to recover a cartridge Caution If you force an eject the cartridge may become unreadable and may require erasing or re initializing by the application software You can also force an eject when you need to eject the magazine and there is no cartridge loaded in the drive If you force an eject when a cartridge is not loaded the autoloader waits 35 seconds ejects the magazine and then resets
51. rite protect switch ON autoloader magazine 0 sececcceeeeeeeceennneecetnneeeeenneeecesnneeesetnneeeeetnneeeeeenieeeenanes 33 Figure 18 Four he ad cylinder Ee EE 37 Figure 19 Alternating azimuth angles on tape racks 38 Figure 20 DDS cartridge design features 41 Figure 21 Write Protect Tab on the DDS Cartridge 1 cccscccccececeeeceensecceneeceeeeesaeeseneeceeeeecsanessaseseneeeeseaneneaes 42 Introduction Introduction Overview The Seagate Scorpion 240 digital data storage DDS autoloader is designed for computer environments that require high performance extra high capacity data storage Based on a 3 5 inch mechanism the internal and external Scorpion 240 autoloaders provide 20 Gbytes of data storage capacity per cartridge 40 Gbytes compressed for a total of 240 Gbytes compressed per six cartridge magazine The drive has a native transfer rate of 2 75 Mbytes per second 5 5 Mbytes per second compressed The Scorpion 240 drive combines established DAT technology high density recording and hardware data compression capability along with Seagate s proven computer grade design to provide unmatched reliability and performance characteristics among DDS products The Scorpion 240 is ideal for server and network enterprise applications such as e Backup of high capacity networks and disc arrays e Network and internet servers e Automated storage management e Online unattended data collection e Near line secondary
52. rs 2 Gbyte uncompressed capacity e Model M34000 DDS 2 120 meters 4 Gbyte uncompressed capacity e Model STDM24G DDS 3 125 meters 12 Gbyte uncompressed capacity e Model STDM40 DDS 4 150 meters 20 Gbyte uncompressed capacity Drive Operation and Maintenance 33 Write protecting the DAT cartridge and magazine Figure 16 shows how to write protect or write enable a DAT tape using the sliding write protect tab You can only write data to the tape when the tab is in the closed position Write enabled Write protected Figure 16 Write protect tab on the DAT cartridge Figure 17 shows how to write protect a Scorpion 240 magazine To enable writing to the magazine move the switch upward To protect all tapes in the magazine from being written to move the switch down Write enabled Write protected Figure 17 Write protect switch on autoloader magazine 34 Scorpion 240 Product Manual Preparation for shipping Before shipping the Scorpion 240 you must secure the autoloader door to prevent damage to the drive Follow the procedure below to secure the door as the last step before switching off the autoloader T Make sure there is no magazine in the autoloader The LCD should display the message NO MAGAZINE Press and hold the Select button for 5 seconds The LCD should show the following menu gt VERSION LANGUAG CONTRAST Press the Select button four times The cursor gt will
53. saeenaeeneeeeenaees 11 Installation 13 IMTPOCUCTION EE 13 Unpacking and Inspechon erences erence eeeaeeeeeeaeeeeeseneeeeeseeeaeeeeeeeaees 13 Installing an internal Scorpion 240 13 Guidelines ANd CAUTIONS iniaa eee e aaa a a aa a ae a aa a a 14 Configuring an internal Scorpion 240 14 Jumper Setting EE 14 Dip SwitCh Seting EE 16 Mounting an internal Scorpion 240 18 Installing an external Scorpion 240 20 Configuring the external Scorpion 240 20 Connecting the SCSI interface Cable cccccceeseceeeeeeeeeeeeeeseeeeeseaeeeeeeseeeeeeaes 21 Connecting the Dower Cord 21 iv Scorpion 240 Product Manual Drive Operation and Maintenance 22 Starting the autoloader seeeseeeseeese nesnese restren nssr nntnnssnnstnntnsstnsstnssrnnsnensnensrnnnnnne 22 Using Cartridges And magazines ceceeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeeeeteeeeeeeeeeaeereeeeaeees 23 Apoying Let EE EE 23 Loading Cartridges in a magazine 23 Loading a magazine into the autoloader AA 24 Ejecting a cartridge or magazine eee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneeaeees 24 Automatic and manual Cartridge loading cccceeeseeeeeeeeeeeeeeaeeeeeeneeeeeenaeeeeees 25 About the tront panel DOS srir rennan ena taai EEEa RAEE AAE 26 Ejer GUTON EE 26 Select button iene naan eer 26 ULT 26 About the front panel LEDS aen 26 Clean RE 27 WETTER OR 27 Piva RE 27 EED Code SUMMANYs us tee iis een ee ees Gah inate 28 About the front panel LCD displ
54. ted These mechanical sensors and the sensor for the cartridge in status comply with the DDS 4 standard requirements for the cartridge The beginning of tape BOT sensor is an optical sensor that uses the light path transmissivity of leader tape as specified in the DDS cartridge standards The sensor is also designed to recognize media recognition system MRS cartridges which have a series of alternate opaque and clear stripes at the beginning of the tape The capstan sensor is a magnetoresistive Hall sensor that detects a magnetic field The cylinder sensors are coil and magnet sensors Each reel motor contains a high resolution optical speed encoder Other sensors detect the mechanism position during mode changes Read After Write The read after write RAW technique provides a means of verifying that host data was written on the tape correctly by applying a read check immediately after writing the data to tape The read check is a comparison of the actual signal quality versus a predetermined acceptable threshold level If a frame is identified as bad it is rewritten later down the tape The bad frame is not necessarily rewritten immediately It can be rewritten after three four or five other frames have been written Any frame can be rewritten multiple times to provide for skipping over bad areas on the tape 40 Scorpion 240 Product Manual Excessive consecutive rewrites typically signal a degraded media condition in these c
55. wly flashing Clean LED may indicate that a tape is damaged or is nearing the end of its life If cleaning the head does not correct the flashing LED condition replace the cartridge Use the table below to determine how often to clean the autoloader Daily Usage hours Optimum cleaning frequency for DDS 4 tapes 4 Twice a month 8 Weekly 12 or more Twice a week Cleaning procedure To clean the tape heads on your DDS 4 drive use only a Seagate qualified cleaning cartridge designed for DDS 4 drives You can purchase a Seagate cleaning cartridge Model 90301 on the internet at http ouytape seagate com Note The drive cannot recognize audio DAT cleaning cartridges Manual cleaning You can clean the drive manually using the following procedure 1 Place the cleaning cartridge in a magazine slot and insert the magazine into the autoloader 2 Use the Select button to select the slot where you placed the cleaning cartridge 32 Scorpion 240 Product Manual 3 Press the Enter button to load the cleaning cartridge into the tape drive The autoloader starts the cleaning cycle automatically 4 When the cleaning cycle is complete the cleaning cartridge is returned to the magazine Press the Eject button to unload the magazine and remove the cleaning cartridge 5 Record the date of the cleaning on the cleaning cartridge label Each time the cleaning cartridge is loaded a new unused portion of cleaning tape
56. y after the data is written As mentioned earlier the cylinder rotates rapidly 10 000 RPM in the same direction that the tape moves The wrap angle of the tape on the cylinder is approximately 102 degrees The combined movement of the tape and cylinder results in a relative head tape speed of 20 4 inches per second ips Figure 18 illustrates a helix track the four head design and shows the 102 degree wrap angle 6 Drum inclination angle Direction of drum nee Read Head B eee Write Head A SCH LI Tape Tape SS an Track ol one 7 recording hea 102 Angle of tape wrap across tape surface Write Head B Read Head A Figure 18 Four head cylinder design The recorded tracks are written diagonally across the tape from bottom to top by each write head Because the head is wider than the track written tracks overlap with no tape space between them In conventional recording such overlap or even proximity results in crosstalk signals from adjacent tracks interfering with signals from another track However in helical scan recording the heads are set at different azimuth angles so that alternate tracks on the tape are written at alternate azimuth angles See Figure 19 Because the read head is set to the same angle as its corresponding write head it picks up a stronger signal from data written in the same azimuth angle as itself So it reads the track with minimal crosstalk At the same time the head is maintai
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