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NStor Technologies Disk Array Enclosure User's Manual

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1. cho TOP chi Cho TOP cht a r an 2 O Interface m 1O Interface v Card z Card 2 2 8 oj 3 sj 2 w t wo iv cl y D a 2 5 O 2 C oj S 5 3 E of 2 o o S8 og Ultra SCSI AF 3 30 RAID Controller y 2 E VO Interface 2 S 1 0 Interface TO Card ZA Card Ch1 Ssl s Ch2 cs xs Sai Cho Ch1 Cho Ch1 14 inch jumper cable 2 14 inch jumper cable 2 5 Locate the jumper cables Connect one end of a jumper cable to the Channel 0 SCSI connector on the left side or lower I O Interface card in the first cabinet 28 Installation Connect the other end of the jumper cable to the Channel 0 SCSI connector on the left side or lower I O Interface card in the second cabinet Connect one end of a second jumper cable to the Channel 1 SCSI connector on the left side or lower I O Interface card in the first cabinet Connect the other end of the second jumper cable to the Channel 1 SCSI connector on the left side or lower I O Interface card in the second cabinet NOTE SCSI termination is automatic and requires no user configuration Refer 10 11 12 to Termination on page 21 for information on systems using DEC Fault bus protocol Turn on the power to the CR 8e A fter the power on self test has completed Status and Channel M ode LEDs will be solid green Access the Options menu on the Operator Control Panel and choose the SAF
2. o Q o Cho S Cho 9 Cho 3 T b oO 2 xo re Eo u Os Os P Os o Vv E 0 5 SO 3 So ie 2 3 O oA al m s 3 5 3 2 o v x g 3 o 2 is 5 2 3 ia o E 5 j2 oe oz J gi E 2 8 of oS S of S Ultra SCSI 2o S Sg g 99 RAID Controller p2 Eos ow 2 5D 2 Zo os 76 ED SG Ep Re SO Re OS Be Qs Ox OES O s cs cs as Cho Ch1 Cho Ch1 Cho Ch1 2 2 2__ 7 14 inch jumper cable C 14 inch jumper cable 5 Locate the jumper cables Connect one end of one jumper cable to the Channel 0 SCSI connector on the left side or lower I O Interface card installed in the Dual Bus enclosure master 34 Fast Wide SCSI Mode 6 Installation Connect the other end of the first jumper cable to the Channel 0 SCSI connector on the left side or lower I O Interface card installed in the Single Bus enclosure Slave 1 Connect one end of a second jumper cable to the Channel 1 SCSI connector on the left side or lower I O Interface card installed in the Dual Bus enclosure master Connect the other end of the second jumper cable to the Channel 0 SCSI connector on the left side or lower I O Interface card installed in the Single Bus enclosure Slave 2 NOTE SCSI termination is automatic and requires no user configuration Refer 10 11 12 to Termination on page 21 for information on systems using DEC Fault bus protocol Turn on the power to the CR 8e A fter the power on self tes
3. JP2 Jumper SCSI to SCSI Settings Positions 1 amp 2 Reserved 3 amp 4 Add this jumper to place the SCSI to SCSI controller into VT 100 mode for the serial channel Remove the jumper to place the SCSI to SCSI controller into the SLIP port mode 5 amp 6 Add this jumper to place the SCSI to SCSI controller into the Fixed Baud Rate mode for the serial channel Remove the jumper to place the SCSI to SCSI controller into the Variable Baud Rate mode for the serial channel 7 amp 8 Add this jumper to place the SCSI to SCSI controller in a Master configuration Remove the jumper to place the SCSI to SCSI controller in a Slave mode JP3 SCSI to SCSI IDs CAUTION Jumper configuration to be performed by qualified service personnel only These jumpers JP3 are used to manually set the SCSI T O SCSI IDs for the SCSI to SCSI RAID controller JP3 is an four position dual row header JP3 j g Jumper Positions 1 amp 2 3 amp 4 5 amp 6 7 amp 8 SCSI to SCSI ID Settings ON ON ON ON 15 OFF ON ON ON 14 ON OFF ON ON 13 OFF OFF ON ON 12 ON ON OFF ON 11 OFF ON OFF ON 10 JP2 SCSI to SCSI Configuration 73 Technical Information Jumper Positions 1 amp 2 3 amp 4 5 amp 6 7 amp 8 SCSI to SCSI ID Settings ON OFF OFF ON 9 OFF OFF OFF ON 8 ON ON ON OFF 7 OFF ON ON OFF 6 ON OFF ON OFF 5 OFF OFF ON OFF 4 ON ON OFF OFF 3 OFF ON OFF OFF 2 ON OFF OFF OF
4. weStor nStor Corporation Inc 1996 1998 nStor Corporation Inc All Rights Reserved 3rd Edition nStor Corporation Inc shall not be liable for any damages or for the loss of any information resulting from the performance or use of the information contained herein Your rights to the software are governed by the license agreement included with any accompanying software nStor Corporation reserves the right to periodically revise this manual without notice Product features and specifications described are subject to change without notice This manual may not be reproduced in whole or part without prior written permission from nStor Corporation Inc nStor Corporation Inc 450 Technology Park Lake Mary Florida 32746 nStor AdminiStor Smart Cabinet and the nStor logo are trademarks or registered trademarks of nStor Corporation Inc Other company and product names herein may be trademarks or registered trademarks of their respective companies CAUTION Drives and controller adapter cards described in this manual should only be installed in UL listed and CSA certified computers that give specific instructions on the installation and removal of accessory cards refer to your computer installation manual for proper instructions ATTENTION Les lecteurs et cartes contr leurs d crits ici ne doivent tre mont s que sur des ordinateurs homologu s UL et CSA et livr s avec des manuels contenant les instructions d installation e
5. Zur Wahl des korrekten Netzkabels beachten Sie bitte folgendes 230V Betrieb Europa Verwenden Sie Netzkabel der Bezeichnung HAR die HO5VV F Kabel und einen Leitungsdurchmesser von mindestens 0 75 mm2 aufweisen Ver Wenden Sie eine IE C 320 Buchse und einen fur das Installationsland passenden Stecker der auf 6A und 250V gesichert ist Contents Preface v W elcome v Features vi Where to Find Answers vii Registering Y our Product vii 1 Getting Started CR 8e Subsystem at a Glance Components Hot Swap Disk Drives Hot Swap Cooling Fans Hot Swap Power Supplies Power Switch Door Lock I O Interface Card Power Cord Connector and Fuse Configuration M odules Controlling and Monitoring Operator Control Panel LEDs Alarm Speaker Fault LEDs SAF TE Card _ o oo Nn ooun RA AAN FPrPrFOo Pree Installation Setup System R equirements Guidelines Rack M ount Subsystem A ssembly Component Installation Cabling Configuration General Ultra Wide SCSI M ode Fast Wide SCSI Mode Other Configurations Using the CR8e Notifications and Error Conditions Power On Self T est Firmware Error Conditions LED Descriptions Operator Control Panel Startup Screens Power Supply Error Conditions Subsystem Status Icon Main Menu Options M enu Heat Threshold SAFTE CHAIN ID Change Passcode Unlock Options Troubleshooting Common Enclosure Problems Common SCSI Bus Problems Common Problems and Interpreting the LED Indi
6. Connectors 71 Technical Information Jumpers CAUTION Jumper configuration to be performed by qualified service personnel only Disconnect the AC power cord prior to accessing any component inside the rear cabinet Located on the backplane printed circuit board are six jumper blocks From these jumpers system integrators can manually configure the CR 8e subsystem To change the jumper setting pull the jumper plug off its pin s and carefully fit in down onto the pin s as indicated T his allows the user to make reversible changes to the circuitry on the printed circuit board The jumper settings are knows as open or unjumpered and jumpered W hen unjumpering the setting remove the jumper plug from both pins and seat it over just one of the pins T his allows the jumper plug to be stored for later use JP3 JP2 JP4 28 CONFIG scsi IDs J15 J17 4 i JP5 4 3 oem FAN J17 4 3 REMOTE DELAY 21 JP5 Rear View of Backplane PCB 72 Jumpers Technical Information JP2 SCSI to SCSI Configuration CAUTION Jumper configuration to be performed by qualified service personnel only This jumper JP2 is used to place the SCSI to SCSI RAID controller in a configuration that is known to the CR 8e subsystem T his process is accomplished by adding jumpers to J P2 The jumper block is a four position dual row header 8 R ses i4 CONFIG
7. They provide the input output interface from the subsystem bus to the RAID controller or host adapter card VHD HD 68 pin SCSI P Cable Connector Pin out Signal Name Pin Conductor Signal Name Pin Conductor Number Number Number Number DB 12 1 1 DB 12 35 2 DB 13 2 3 DB 13 36 4 DB 14 3 5 DB 14 37 6 70 Connectors and Jumpers Technical Information Signal Name Pin Conductor Signal Name Pin Conductor Number Number Number Number DB 15 4 7 DB 15 38 8 DB P1 5 9 DB P1 39 10 DB 0 6 11 DB 0 40 12 DB 1 7 13 DB 1 41 14 DB 2 8 15 DB 2 42 16 DB 3 9 17 DB 3 43 18 DB 4 10 19 DB 4 44 20 DB 5 11 21 DB 5 45 22 DB 6 12 23 DB 6 46 24 DB 7 13 25 DB 7 47 26 DB P 14 27 DB P 48 28 GROUND 15 29 GROUND 49 30 DIFFSENS 16 31 GROUND 50 32 TERMPWR 17 33 TERMPWR 51 34 TERMPWR 18 35 TERMPWR 52 36 RESERVED 19 37 RESERVED 53 38 GROUND 20 39 GROUND 54 40 ATT 21 41 ATN 55 42 GROUND 22 43 GROUND 56 44 BSY 23 45 BSY 57 46 ACK 24 47 ACK 58 48 RST 25 49 RST 59 50 MSG 26 51 MSG 60 52 SEL 27 53 SEL 61 54 C D 28 55 C D 62 56 REQ 29 57 REQ 63 58 1 0 30 59 1 0 64 60 DB 8 31 61 DB 8 65 62 DB 9 32 63 DB 9 66 64 DB 10 33 65 DB 10 67 66 DB 11 34 67 DB 11 68 68
8. VVVVVVVVVVVYVVVYVYVVY OPTIONS WILL REMAIN UNLOCKED UNTIL YOU RETURN TO THE DEFAULT SCREEN MENU ENTER ESCAPE Unlock Options Troubleshooting This chapter provides solutions for some of the problems you may encounter while using the CR 8e subsystem Common Enclosure Problems Symptom Reason Solution Fails to power on Power cord not connected Verify that the power cord is properly properly connected to the power module Power not available at the If the CR 8e is plugged into a outlet three hole grounded outlet verify if power to the outlet has been interrupted This can be accomplished by testing the outlet with a known working appliance like a lamp Power switch not in the Be sure that the power switch is proper position inthe ON position labeled I Replace fuse see Replacinga Faulty fuse Fuse on page 62 Faulty power cord Replace power cord If the CR 8e is not responding contact nStor T echnical Support Troubleshooting Symptom Reason Solution Operator Control Panel display indicates Hardware Error Possible component failure From the Operator Control Panel Hardware M enu from the Main Menu and select Component Status Scroll down through the list to locate the failed component Follow the procedures in the M aintenance chapter to replace the failed component LED and audible alarms indicate
9. oougoxooooo ooo Rack Mount Subsystem Assembly 16 Installation To aidein support bracket installation remove the rack cabinet side panels Locate the two support brackets M ount the two brackets to the rack cabinet verticals using the four screws four washers and four caged nuts provided for each bracket Refer to detail A in the illustration on the previous page NOTE Thecaged nuts are secured into the rack cabinet vertical slots by inserting one side of the nut into the slot and squeezing while pressing the opposite side in until it snaps into place 4 Remove the two 2 upper enclosure case screws as depicted below on the right side of the subsystem cabinet NOTE Theenclosure is attached to the support bracket only on the right side 5 Slide the subsystem cabinet into the cabinet with the subsystem riding on top of the support brackets 6 Align the two upper case screw holes with those provided in the support bracket on the right side 8 32 Pan Head Screws Rail is installed to ei the front and rear rack cabinet verticals 7 Secure the subsystem cabinet to the right hand rail using the two 2 screws previously removed 8 Continue with the component installation on the next page Rack Mount Subsystem Assembly Installation Component Installation CAUTION Disk drives and printed circuit board components are sensitive to electrostatic discharge To prevent operating failure
10. the system failed the diagnostic test Power on self test failed From the Operator Control Panel Hardware M enu from the Main Menu and select POST Results Scroll down through the list to locate the failed component see Power On Self Test on page 37 Operator Control Panel display indicates cabinet temperature threshold has been exceeded Cooling fan failure Temperature threshold too low Cooling fan vent blocked Inadequate ventilation around the CR8e From the Operator Control Panel Hardware M enu from the Main Menu and select Component Status Scroll down through the list to locate the failed component Follow the procedures in the M aintenance chapter to replace the failed component Change the temperature threshold value see H eat Threshold on page 49 Examine the cooling fan vents for blockage and clear The location chosen for the CR 8e probably has poor air circulation Choose a better location Common SCSI Bus Problems SCSI Bus problems can usually be attributed to cabling issues or faulty 1 0 Interface cards Refer to the chart on the following page to review troublshooting and fault isolation procedures to assist you in identifying the suspect component 54 Common SCSI Bus Problems Troubleshooting SCSI Bus Symptom Probable Cause Solution SCSI Bus hangs SCSI Faulty connectivity Re check the cables to the 1 0 Bus excessi
11. 0 9 and the Enter button to move from one field to the next Press the Enter button after you have made your selections You will be prompted to press the E scape button after the passcode has been modified to enable the change to take affect The default code is 0000 NOTE Thepasscode lock will not take effect until you have returned to the Main screen displaying Status OK Change Passcode 51 52 Using theCR8e Unlock Options This option allows the administrator to unlock the items found under the SCSI ID M enu Heat Threshold and Change Passcode selections This enables the user to change these values and protects these values from being changed by those not authorized to do so nStor VVVVVVVVVVYVVYVYVVYVVY HEAT THRESHOLD nStor SAFTE CHAIN ID VVVVVYVVVVVYVVYYYVVYVY CHANGE PASSCODE ENTER 4 DIGIT gt UNLOCK OPTIONS PASSCODE 00 0 ae MENU ENTER ESCAPE MENU ENTER ESCAPE 1 Tochangethe Unlock Options access the Main menu and choose Options Menu 2 Usethe up down arrow buttons to change the code value 0 9 and the Ente button to move from one field to the next 3 Press the Ente button after you have made your selections You will be prompted that the SCSI ID Menu options are unlocked until you have cycled the menus back to the default Status OK screen An unlock icon will appear in place of the cursor while the options remain unlocked nStor
12. Cord Selection NOTE This subsystem is intended for indoor use only This subsystem is intended to be plugged into a 6A branch circuit in Europe To select the proper power cord For 110 Volt Operation UseaUL Listed CSA Labeled cord set consisting of aminimum 18 AWG type SVT or SJT three conductor cord terminating in a molded connector body having an IEC CEE 22 female configuration on one end and a molded on parallel blade grounding type attachment plug rated 15A 125V configuration 5 15P at the other end For 230 Volt Operation North A merica Usea UL Listed CSA Labeled cord set consisting of a minimum 18 AWG type SVT or SJT three conductor cord terminating in a molded connector body having an IEC CEE 22 female configuration on one end and a molded on tandem blade grounding type attachment plug rated 15A 250V configuration 6 15P at the other end For 230 Volt Operation Europe U se a cord set marked HAR consisting of a HO5VV F cord that has a minimum 0 75 square mm diameter conductors provided with an IEC 320 receptacle and a male plug for the country of installation rated 6A 250V The subsystem automatically selects the proper settings for the input voltage Therefore no additional adjustments are necessary to connect the unit to any input voltage within the range marked on the drive Das Laufwerk sollte nicht im Freien verwendet werden In Europa sollte das Laufwerk an einen 6A Stromkreis angeschlossen werden
13. O In addition depending how the controller software is written both controllers may work together to read and write data simultaneously to different drives When something is fault tolerant it is resistent to failure A RAID 1 mirrored subsystem for example is fault tolerant because it can still provide disk I O if one of the disk drivesin a mirrored system fails The Hot Spare is one of the most important features the controller provides to achieve automatic non stop service with a high degree of fault tolerance T his rebuild operation will be carried out by the controller automatically when a SCSI disk drive fails A set of contiguous chunks of a physical disk Logical disks are used in array implementations as constituents of logical volumes or partitions Logical disks are normally transparent to the host environment except when the array containing them is being configured The conversion between multiple data addressing schemes especially conversions between member disk block addresses of the virtual disks presented to the operating environment by the array management software Refers to the 100 duplication of data on one disk drive to another disk drive Each disk will be the mirror image of the other Partition Physical Drive RAID RAID 0 RAID 1 RAID 10 RAID 3 RAID 30 RAID 5 RAID 50 AM RAID Controller Rebuild Rotated XOR Redundancy Glossary An array virtual disk made up of l
14. or writes LEDs Getting Started Alarm Speaker An audible alarm will sound when any component s condition changes to an abnormal state T he Status Indicator LEDs conditions color and or state will provide a general area of failure and the failed component can then be identified using the Operator Control Panel To silence the alarm access the control panel and select Turn Off Alarm For more information see M ain M enu on page 42 Fault LEDs When a disk drive is installed in a drive slot it has a corresponding Drive Fault LED that will illuminate to aide in identifying a failed or problem disk drive These LEDs are located on the inside front door panel and are aligned with their respective drive slot If the LED is illuminated amber the condition indicates a failed or problem drive found in that drive slot SAF TE Card The SAF TE card contains the control and monitoring electronics for the subsystem cabinet It provides the central data link between the enclosure and the host system Located in the tower based systems top bay the rack mount systems far left bay are two card slots The SAF TE card is installed in the lower furthest right of the two slots The upper slot furthest left slot is not used SAF TE The CR 8e is designed to be compliant with version 1 0 of the SAF TE SCSI Accessed Fault T olerant Enclosure specification Under this specification the enclosure is implemented as an assig
15. power cycling precautions by waiting a minimum of five 5 seconds before adding power again This will reset the SCSI IDs to a default setting that prevents a SCSI ID conflict under normal conditions 8 Power up your computer system and run the configuration program This completes the hardware installation Fast Wide SCSI Mode 27 Installation Two Dual Bus Enclosures With this configuration you will havea total storage capacity of up to 290 GB using 18 GB disk drives which provides 145 GB per channel per subsystem enclosure This configuration is similar to the Single Dual Bus Enclosure except that the capacity is expanded with a second cabinet providing a total of eight drives per SCSI channel CAUTION Ensurethat the power switch isin the OFF O position for both the host system and the CR 8e subsystem before connecting any cables 1 Connect one end of a one meter data cable to the Channel 1 connector on the AM RAID Controller 2 Connect the other end of the first data cable to the Channel 0 SCSI connector on the right side or upper I O Interface card 3 Connect oneend of the second one meter data cable to the Channel 2 connector on the AM RAID Controller 4 Connect the other end of the second data cable to the Channel 1 SCSI connector on the right side or upper I O Interface card
16. rear door access screw Open the door to gain access to the fans Disconnect the failed fan s power cable connector Remove the failed fan by sliding it out from the door assembly 60 Replacing the Cooling Fans Maintenance 5 Remove the new cooling fan from the shipping carton and inspect the shipment Save the packaging material 6 With the fan guard facing toward the inside of the cabinet slide the new fan into its housing 7 Reconnect the fan s power cable connector T he connector is keyed and will install only one direction 8 Close the rear door panel The door has a latch mechanism that holds the door in the open position Squeeze the latch to release the door allowing it to be closed 9 Secure the door with the access panel screw 10 Using the packaging materials from the replacement power supply repackage and return it to nStor Corporation refer to the nStor Resource Guide for information on Obtaininga Return M aterial Authorization Replacing an I O Interface Card 1 Identify the failed I O Interface card Refer to the Troubleshooting chapter for information on identifying failed cards Troubleshooting on page 53 2 Turn the power OFF to the CR 8e subsystem T he cards are not hot swappable a i KE BURY v ey EAM gt Thumb Screw Replacing an I O Interface Card 61 Maintenance Loosen the two thumb screws that secures the card 4 Insert the new I O
17. the configuration program This completes the hardware installation Fast Wide SCSI Mode 31 Installation Two Single Bus Enclosures This configuration is similar to the Single Bus Enclosure except that the capacity is expanded with a second cabinet providing a total of fourteen drives per SCSI channel In this configuration a total of 16 SCSI IDs are available one ID is consumed by theAM RAID Controller and ID 3 is taken by the SAF TE processor leaving the fourteen remaining SCSI IDs available for the disk drives Since the two CR 8e enclosures provide for sixteen drives with only 14 IDs available two drive slots will remain empty under this configuration CAUTION Ensurethat the power switch isin the OFF O position for both the host system and the CR 8e subsystem before connecting any cables 1 Connect one end of a one meter data cable to the Channel 1 connector on the AM RAID Controller 2 Connect the other end of the data cable to the Channel 1 SCSI connector on the upper or right side I O Interface card NOTE TheChannel 1 connector located on the upper or right sidel O Interface card is the active connector when the Single Bus module is installed I O Interface Card I O Interface Card 1 meter data cable with Single
18. will appear see Internal Temp on page 45 nStor VVVVVVVVVVVVVVVYVYVY SCSI ID MENU gt HEAT THRESHOLD nStor CHANGE PASSCODE E ENTER TO SET a ESC TO EXIT 116 F 47 C MENU ENTER ESCAPE MENU ENTER ESCAPE 1 Usethe up down arrow buttons to select H eat Threshold and press the E nter button 2 Usingtheup down arrow buttons change the temperature threshold setting The up arrow button will increase the temperature and the down arrow button will lower the temperature threshold T he temperature value will change by 2 C increments 3 Press the Ente button the set the new tenperature value 4 Press the Escape button twice or press the M enu button to return to the Main Status OK screen then power cycle the host computer and CR 8e subsystem Heat Threshold 49 50 Using theCR8e SAFTE CHAIN ID This option allows the administrator to establish the intercabinet SA F T E communication to support a master and slave cabinets T he master cabinet can report component failure for both the master cabinet and up to two slave cabinets to the AdminiStor Storage M anagement software Each cabinet s individual OCP will function normally for that cabinet s components Once the slave cabinets have been established the administrator must use the slave cabinet s OCP to manually take that slave cabinet SA F TE card off bus refer to SCSI ID M enu on page 46 1 C
19. 55 SCSI cable length limits 20 SCSI ID Menu 46 Self Test 37 Setup 13 Shielded data cables 21 Shock 70 Single Bus module 17 Single Bus M odule Single Cabinet 30 Single Bus M odule T wo Cabinets 32 Specifications 69 Startup Screens 40 Status LEDs 10 Stripe Order 68 Stripe Width 68 Striping 68 System Requirements 14 System Status Icon 41 T Technical Information 69 Temperature Threshold Exceeded 54 Termination 21 TestingROM 37 Third Power Supply 19 Troubleshooting Failsto Turn On 53 LEDs Not Functioning 56 U Ultra SCSI Dual Bus M odule Single Cabinet 22 Fast 20 20 Single Bus M odule Single Cabinet 24 Ultra Wide SCSI Mode 22 Ultra Wide SCSI mode 20 Unlock Options 52 V VDH SCSI connectors 70 Vibration 70 W Weight 69 Where to Find Answers vii Index 79 80 Index
20. Bus Module installed Q with Single Bus Module installed Q ie 6 Ultra SCSI z RAID Controller V O Interface 2 Ao marrage 5 Card 5 Ch1 2 ae Unavailable Drive 14 inch jumper cable Available Drive 3 Locate the jumper cables Connect one end of a jumper cable to the Channel 0 SCSI connector on the left side or lower I O Interface card in the first cabinet 32 Fast Wide SCSI Mode Installation 4 Connect the other end of the jumper cable to the Channel 0 SCSI connector on the left side or lower I O Interface card in the second cabinet NOTE SCSI termination is automatic and requires no user configuration Refer 8 to Termination on page 21 for information on systems using DEC Fault bus protocol Turn on the power to the CR 8e A fter the power on self test has completed Status and Channel M ode LEDs will be solid green Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection For each subsystem identify which subsystem will be the master cabinet and which will be the slave cabinet Generally the master cabinet will the subsystem connected to the controller Refer to SAFTE CHAIN ID on page 50 After setting the cabinet identifications you must power cycle the subsystem Observe normal power cycling precautions by waiting a minimum of five 5 seconds before adding power again This will reset the SC
21. ED TO z Fan Status LED O Activity LEDs I O Interface Card VHD SCSI Connectors Power Supply 3 with PSU Cover Plate PSU DC Good LED Rear Door Fastener Rear Door Panel I O Interface Card VHD SCSI Connectors CR8e Subsystem at a Glance Getting Started Bay for optional Ultra S2S RAID Controller SAF TE Card Fault LEDs Power On Off Switch Hard Disk Drive Drive Rails Note Cover shown cut away to illustrate recessed power switch I O Interface Card Power Supply 3 with PSU Cover Plate Power Supply 2 I O Interface Card a Power Supply 1 DC Good LED Power supplies and cooling fans must bereplaced by qualified servicepersonnd only CR8e Subsystem at a Glance 3 4 Getting Started Components This section provides a descriptive overview of each of the major components that comprise the CR 8e subsystem Hot Swap Disk Drives The CR 8e uses either 4 2 gigabyte 9 1 gigabyte or 18 2 gigabyte high performance 3 5 inch form factor hot swap disk drives T he drives are designed to operate on the Small Computer System Interface SCSI and are Ultra SCSI as well as SCSI 2 command compatible Each drive has an 80 pin Wide Single Connector Attachment SCA II interface designed to allow the drive to be inserted directly into the backplane thus making it possible t
22. F 1 OFF OFF OFF OFF 0 JP4 SCSI ID Settings CAUTION Jumper configuration must be performed by qualified service personnel only T hese jumpers JP4 are used to manually set the SCSI IDs for all of the disk drive Slots JP4 is an eight position dual row header The tables for Drives 1 2 3 4 and Drives 5 6 7 8 found on this page and the following page also provides a list of the possible combinations of SCSI 1D s that can be set when using the Operator Control Panel preset feature for each drive group 16 Pe ii Be Jumper Positions for Drives 1 2 3 and 4 ID Settings s 1 amp 2 3 amp 4 5 amp 6 7 amp 8 SCSI ID 1 2 3 and 4 ON ON ON ON 0 1 2 3 OFF ON ON ON 0 1 2 4 ON OFF ON ON 4 5 6 7 OFF OFF ON ON 4 5 6 8 ON ON OFF ON 5 6 7 8 OFF ON OFF ON 5 6 8 9 ON OFF OFF ON 8 9 10 11 OFF OFF OFF ON 9 10 11 12 74 JP4 SCSI ID Settings Technical Information Jumper Positions for Drives 1 2 3 and 4 ID Settings 1 amp 2 3 amp 4 5 amp 6 7 amp 8 SCSI ID 1 2 3 and 4 ON ON ON OFF 10 11 12 13 OFF ON ON OFF 10 11 X X Jumper Positions for Drives 5 6 7 and 8 ID Settings 9 amp 10 11 amp 12 13 amp 14 15 amp 16 SCSI ID 5 6 7 and 8 ON ON ON ON 0 1 2 3 OFF ON ON ON 0 1 2 4 ON OFF ON ON 4 5 6 7 OFF OFF ON ON 4 5 6 8 ON ON OFF ON 5 6 7 8 OFF
23. Interface card and tighten the thumb screws Do not overtighten the fasteners 5 Using the packaging materials from the replacement card repackage the failed card and return it to nStor Corporation Refer to the nStor Resource Guide for information on Obtaininga Return M aterial Authorization Replacing a Fuse CAUTION Power off the subsystem and disconnect the power cord before changing the fuse 1 Locate the fuse holder on the rear panel of the CR 8e Fuse Assembly Power Connector Module Fuse 250V 10A L Fuse Holder 2 Usingasmall coin turn the fuse holder counter clockwise one quarter turn releasing the holder from its locked position 62 Replacing a Fuse Nn Oo oO FF Q Maintenance Using the tip of your finger nail ease the holder away from the unit Once removed separate the fuse from the holder Replace the fuse with one of identical type and rating 250V 10A Insert the fuse into the holder Insert the fuse holder into the unit and secure it Push in while turning clockwise one quarter turn locking it into place Do not overtighten Replacing the CR8e Cabinet CAUTION Drives and printed circuit board components are sensitive to 2 electrostatic discharge To prevent operating fai
24. ON OFF ON 5 6 8 9 ON OFF OFF ON 8 9 10 11 OFF OFF OFF ON 9 10 11 12 ON ON ON OFF 10 11 12 13 OFF ON ON OFF 10 11 X X JP5 SCA Remote Delay start CAUTION Jumper configuration to be performed by qualified service personnel only The spin up of the drive slots is determined by adding jumpers to JP5 JP5 is atwo position dual row header Position 1 amp 2 control the Delayed Start signal and position 3 amp 4 control the Remote Start signal 43 REMOTE ie Pins 1 and 2 Pins 3 and 4 Drive Spinup Mode ON ON M otor spins up only on SCSI start commands ON OFF M otor spins up after a delay of 12 may vary depending on drive type seconds times the numeric SCSI ID setting of the associated drive JP5 SCA Remote Delay start 75 Technical Information Pins 1 and 2 Pins 3 and 4 Drive Spinup Mode OFF ON M otor spins up only on SCSI start commands OFF OFF M otor spins up at DC power on J15 FAN and J17 OEM FAN CAUTION Jumper configuration to be performed by qualified service personnel only There are two separate fan connectors that are located at J15 and J17 Fan connector J15 is used when a SAF TE card is present in the CR 8e When the fans are plugged into J15 the SAF TE card controls and monitors fan speed Fan connector J17 is used in OEM applications when there is no SAF TE card installed Fan connector J17 su
25. SI IDs to a default setting that prevents a SCSI ID conflict under normal conditions Power up your computer system and run your configuration program This completes the hardware installation Fast Wide SCSI Mode 33 Installation A Dual Bus Enclosure with Two Single Bus Enclosures With this configuration you will be able to expand the capacity of each SCSI channel of a Dual Bus enclosure by adding a Single Bus enclosure to each channel This provides up to twelve drives per SCSI channel for a total capacity of 218 GB using 18 GB disk drives on each channel CAUTION Ensurethat the power switch isin the OFF O position for both the host system and the CR 8e subsystem before connecting any cables 1 Connect one end of a one meter data cable to the Channel 1 connector on the AM RAID Controller 2 Connect the other end of the first data cable to the Channel 0 SCSI connector on the right side or upper 1 0 Interface card 3 Connect one end of the second data cable to the Channel 2 connector on the AM RAID Controller 4 Connect the other end of the second data cable to the Channel 1 SCSI connector on the right side or upper I O Interface card
26. TE CHAIN ID selection For each subsystem identify which subsystem will be the master cabinet and which will be the slave cabinet Generally the master cabinet will the subsystem connected to the controller Refer to SAFTE CHAIN ID on page 50 After setting the cabinet identifications you must power cycle the subsystem Observe normal power cycling precautions by waiting a minimum of five 5 seconds before adding power again This will reset the SCSI IDs to a default setting that prevents a SCSI ID conflict under normal conditions Power up your computer system and run your configuration program This completes the hardware installation Fast Wide SCSI Mode 29 Installation Single Bus Enclosure With the Single Bus module is installed all of the disk drives in the CR 8e enclosure are on the same SCSI bus With this configuration you will havea total storage capacity of up to 145 GB using 18 GB disk drives per subsystem enclosure and have access to the drives independently or as a single large array The SCSI IDs of the drives are set by SAF TE card defaults to ID s 0 through 9 and are assigned sequentially beginning with the lowest or far right drive NOTE SCSI ID 3isreserved for the SAF TE card processor and ID 7 reserved for the RAID controller CAUTION Ensurethat the power switch isin the OFF O position for both the host system and the CR 8e subsystem before connecting any cables 1 Connect one end of a one mete
27. alified service personnel only There is no need to power off the CR 8e or the computer system The power supplies are hot swappable 1 Loosen the two screws on the Power Supply 3 cover plate using a flat blade screwdriver and remove the cover plate 2 Remove the power supply from its shipping package 3 Install the third power supply by sliding the PSU into the cabinet until it reaches its locked position Orient the supply as indicated in the illustration NOTE Usecare when inserting the power supply into its fully seated position Do not use a strong force to seat the PSU into its mating connector 4 Remove the blanking plug for the LED on the cover plate 5 Reinstall the cover plate Secure the cover plate with the two screws using a flat blade screwdriver securing the power supply Component Installation 19 20 Installation Cabling Configuration The Ultra Wide SCSI mode provides enhanced performances with data transfers up to 40 MBs per second 20 MHz while the Fast Wide SCSI mode will provide transfers up to 20 MBs per second 10 MH2 The cabling configuration section is divided into two subsections Ultra Wide SCSI and Fast Wide SCSI T hese two sections provide the recommended cable configurations when operating the CR 8e in a specific mode The CR 8e supports the A merican N ational Standard Ultra SCSI Fast 20 parallel interface standards referred to as Ultra Wide SCSI T his standard is backward comp
28. allation Ultra Wide SCSI Mode 23 Installation Single Bus Enclosure With the Single Bus module is installed all of the disk drives in the CR 8e enclosure are on the same SCSI bus With this configuration you will have a total storage capacity of up to 145 GB using 18 GB disk drives per subsystem enclosure and have access to the drives independently or as a single large array The SCSI IDs of the drives are set by SAF TE card defaults to IDs 0 through 9 and are assigned sequentially beginning with the lowest or far right drive NOTE SCSI ID 3isreserved for the SAF TE card processor and ID 7 reserved for the RAID controller CAUTION Ensure that the power switch isin the OFF O position for both the host system and the CR 8e subsystem before connecting any cables 1 Connect one end of a one meter data cable to the Channel 1 connector on the AM RAID Controller 2 Connect the other end of the data cable to the Channel 1 SCSI connector on the upper or right side I O Interface card NOTE TheChannel 1 connector located on the upper or right sidel O Interface card is the active connector when the Single Bus module is installed I O Interface o z Card g T a D S amp d 2 2 3 oO O ae 8 oa Ultra SCSI o RAID Controller se 1 0 Interface a i Card Oc os cs Q ed e Ch1 NOTE SCSI termination is automatic and requires no u
29. and simplifies storage management by combining existing resources or adding relatively inexpensive resources Disk striping writes data across multiple disks rather than on one disk disk striping involves partitioning each drive storage space into stripes that can vary in size from one sector 1 KB to several megabytes The order in which SCSI Drives appear within a Physical Pack This order must be maintained and is critical to the controller s ability to Rebuild failed drives Refers to the number of kilobytes per stripe block A target ID is the SCSI ID of a device attached to the disk array controller Each SCSI channel can have up to sixteen SCSI devices target ID from 0 to 15 attached to it Refers to a cache writing strategy whereby data is written to the SCSI Drive before a completion status is returned to the host operating system T his caching strategy is considered more secure since a power failure will be less likely to cause loss of data H owever a Write T hrough cache results in a slightly lower performance in most environments Refers to a caching strategy whereby write operations result in a completion signal being sent to the host operating system as soon as the cache not the disk drive receives the data to be written The target SCS Drive will receive that data at a more appropriate time in order to increase controller performance Technical Information SPECIFICATIONS CR8e Opera
30. as well as a description and subsequent procedures for using each of the OCP menu functions Startup Screens The following are sample screens that could occur during the startup POST operation for normal conditions and abnormal conditions nStor nStor VVVVVVVVVVVYVVYVYVVYVY VvVvVVVVVVVVVYVYVVVVVY STARTING DUAL BUS nStor CR8e CONFIGURATION STATUS OK MENU ENTER ESCAPE MENU ENTER ESCAPE A A Startup Screen Status OK Screen You will see either Dual Bus or Single Bus depending on the configuration module installed Normal Screens a a D nStor nStor VVVVVVVVVVVVVVVVVY VVVVVVVVVVYVVVVYVVVY nStor CR8e nStor CR8e STATUS HEAT STATUS HARDWARE THRESHOLD EXCEEDED ERROR MENU ENTER ESCAPE MENU ENTER ESCAPE lt Temperature Exceeded Screen Hardware Error Screen Abnormal Screens If a subsystem error occur during the startup you will hear a continuous tone from the alarm Access the Component Status M enu to identify the suspected failed component 40 Operator Control Panel Using theCR 8e Power Supply Error Conditions During normal operation anytime one of the required number of power supplies becomes inoperative you will hear a continuous alarm and a warning message will appear on the display This message is simply a notification that the state of the power system is no longer redundant Use the Component Status menu to determine which power supply
31. as well as the entire subsystem enclosure Replacing a Disk Drive CAUTION Drives and printed circuit board components are sensitive to electrostatic discharge To prevent operating failure or damage observe the following Establish a ground for yourself by using the wrist grounding strap or by touching the metal chassis prior to handling or installing the drives or printed circuit board components NOTE Thereis no need to power OFF the CR 8e or the computer system The drives are hot swappable 1 Unlock and open the door on the CR 8e cabinet 1 Identify the failed drive using the Status LEDs and the Fault LED 2 Using your thumbs apply a slight pressure outward to release the drive latch clips unlocking the failed drive and remove the drive 3 Remove your new disk drive from the shipping carton and inspect the shipment Remove the anti static protective packaging 4 Holding the drive by its edges locate the Drive Latching Clips and pull out on the latches to unlock them T he Drive Latching Clips are placed in the locked position for shipping purposes 58 Maintenance 5 Insert the drive into the drive bay by aligning its rails into the drive bay slots component side toward the right rack or down tower Seat the drive by applying pressure with your thumb to the front of the drive Press the Drive Latching Clips until they snap into place Using the packaging materials from the replacement disk drive repackage t
32. atible with Fast SCSI SCSI 2 with the W ide option also referred to as Fast Wide SCSI T his standard defines the mechanical electrical and timing requirements In compliance with these interface standards certain limitations apply when considering the configuration lengths of cabling and termination The configuration samples and cables provided with the subsystem meet the requirements of the specifications M odifications to any of these variables can have less than desirable results when operating any SCSI device General Cables Cable length is a critical consideration when configuring the subsystems T here are different limitations for Ultra Wide SCSI and Fast Wide SCSI W hen calculating the total length of your cabling the internal subsystem length of cables and printed circuit board traces known as the internal cable length must be subtracted from your total cable length T he CR 8e internal cable length is 36 inches For Ultra Wide SCSI the total SCSI cable length is 3 meters 118 inches with four drives and 1 5 meters 59 inches with eight drives A fter subtracting the internal length of 36 inches the remaining cable length is 82 inches or approximately 6 83 feet 2 08 meters for four drives and 23 inches or approximately 1 9 feet 58 meters for eight drives For Fast Wide SCSI the total SCSI cable length is 6 meters 236 inches with four drives and 3 meters 118 inches with eight drives A fter subtracting the in
33. cabling schemes and configurations If your desired configuration is not shown in the samples refer to the example most similar and follow the cabling topology scheme expanding the configuration example to fit your needs while conforming to the specific SCSI specification The CR 8e is designed with an open architecture that allows for many possible combinations of cabling schemes Because of these possible combinations we will provide a sampling of configurations in this chapter Additional configurations are available through the use of nStor s Ultra Extender or Differential Converter Feature cards Refer to the nStor FeatureCard User s Guide for information specific to each card and configuration When configuring the array refer to the user s guide provided with your RAID controller 14 Installation System Requirements ThenStor CR 8e disk subsystem is based on an open architecture design and can be connected to any host based SCSI system Refer to your adapter controller and host system user s manuals for information about the system requirements for the host system where the controller will be installed Guidelines Before installation you will need to consider the following When referencing a component on the rear panel it is assumed the user is facing the rear panel and when referencing the front panel components the assumption is that the user is facing the front panel Interior temperature of the rack cabinet s
34. cations Maintenance Replacing a Disk Drive Replacing a Power Supply Replacing the Cooling Fans Replacing an I O Interface Card 13 13 14 14 15 17 20 20 22 26 36 37 37 37 38 39 40 40 41 41 42 46 49 50 51 52 53 53 54 56 57 57 58 60 61 Contents Replacing a Fuse Replacing the CR 8e Cabinet Glossary Technical Information Specifications Connectors and J umpers Connectors Jumpers Index 62 63 65 69 69 70 70 72 77 Contents iv Contents Preface Welcome Congratulations on the purchase of your new CR 8e from nStor Corporation The nStor CR 8e provides a superior fault tolerant network storage solution in a subsystem based SA F TE compliant RAID enclosure TheCR8eis an eight drive enclosure designed to support Ultra Wide SCSI Fast 20 and Fast Wide SCSI protocols The Ultra Wide SCSI Fast 20 support maintains SCSI bus data transfer rates up to 40 M bytes sec The subsystem supports both host system based RAID controllers as well as an option for an onboard Ultra SCSI to SCS I RAID controller The CR 8e also provides an upgrade path to Ultra2 Low Voltage Differential LVD SCSI technology and easily connects to the network attach storage module to maintain its total cost of ownership The intelligent enclosure is compliant with SAF TE version 1 0 an industry standard non proprietary means to automatically integrate with peripheral packagi
35. e removed power supply Air slots in the PSU case face toward the center of the cabinet The new power supply s LED should illuminate 6 Close the rear door panel The door has a latch mechanism that holds the door in the open position Squeeze the latch to release the door allowing it to be closed If you are replacing the 3 power supply re install the PSU Cover Plate and then re secure the power cord retainer 7 Using the packaging materials from the replacement power supply repackage and return it to nStor Corporation refer to the nStor Resource Guide for information on Obtaininga Return M aterial Authorization Replacing a Power Supply 59 Maintenance Replacing the Cooling Fans CAUTION Cooling fans must be replaced by qualified service personnel only NOTE Thereis no need to power off the CR 8e or the computer system T he cooling fans are hot swappable 1 Usethe Operator Control Panel to identify the failed fan refer to the illustration below to locate the components Select H ardware M enu from the M ain M enu and choose Component Status For more information refer to Component Status on page 43 Fan 2 Power Cable Fan 2 Fan 1 Power Cable Fan 1 a4 G7 Door Latch Fan 1 Power Cable You may need to scroll through the list with the arrows buttons to locate the failed component 2 Usinga flat blade screwdriver loosen the
36. ed by cycling the power on the CR 8e Contact nStor Technical Support NOTE TheCR8esubsystem will not respond to the firmware if this error occurs LED Descriptions Use the following LED matrix to interpret the CR 8e LEDs when the SAF TE card is installed and an accompanied SAF TE compliant RAID controller is installed SAF TE LED Matrix STATUS LEDs CHANNEL MODE LEDs AT POWER UP Steady Green Steady Green DRIVE READY Blinking Green Steady Green NOT ASSIGNED DRIVE READY Steady Green Steady Green ASSIGNED HOT SPARE READY Blinking Green Steady Green ASSIGNED DRIVE ERROR Blinking Green Steady Amber NOT ASSIGNED DRIVE ERROR Blinking Amber Steady Amber ASSIGNED ARRAY CRITICAL Steady Amber Steady Amber REMAINING GOOD DRIVES HOT SPARE Steady Amber Steady Amber REBUILD MODE DRIVE MANUALLY Blinking Amber Steady Amber DISABLED STATUS LEDs ASSIGNED TO ARRAY Steady Green UNASSIGNED DRIVE Blinking Green HOT SPARE Blinking Green ALL EMPTY BAYS Off FAILED DRIVE Blinking Amber REBUILD MODE Steady Amber all drives CHANNEL MODE LEDs ARRAY IS FAULT TOLERANT Steady Green ARRAY IS IN REBUILD MODE Steady Amber ARRAY HAS A FAILED DRIVE Steady Amber FIRMWARE CHECKSUM ERROR Alternating Amber and Green LED Descriptions 39 Using theCR8e Operator Control Panel In this section you will find an explanation of the Operator Control Panel screen displays
37. entified by its description silkscreened on the module card It is installed on the backplane printed circuit board at location JP1 and is accessed from the rear door panel The connector is keyed and the module will only install in one direction For illustration purposes the tower system is used to depict the location of the modules Backplane PCB JP1 NOTE The cover is cut away to demonstrate the location of the installed configuration module E Single Bus Module Configuration Modules 7 8 Getting Started Controlling and Monitoring An integral part of the CR 8e is its control and monitor capabilities T he subsystem enclosure contains a series of redundant alert notifications in the form of LEDs alarms and an LCD Operator Control Panel Each of these components are discuss in the following topics Operator Control Panel The Operator Control Panel OCP provides control and monitoring capabilities through an LCD panel located on the front door of the CR 8e The disk drives power supplies fans and processor can be monitored for their status by using the menu drive OCP interface Also the user can maintain control of the subsystem components by providing the capability to change to the disk drive SCSI IDs and SAF TE processor ID and making changes to the temperature threshold for the thermal monitoring system Other menu functions provide for viewing subsystem compo
38. ents To register your product complete and fax the Plan Registration U pgrade Form found in the Product Registration kit Where to Find Answers vii Preface viii Getting Started In this chapter we will provide a description of the components and the control and onboard monitoring systems found in the CR 8e enclosure On the next two pages are illustrations that depicts the location of featured components of the CR 8e Familiarize yourself with the subsystem s components and their descriptions prior to beginning the installation and using the CR 8e Following the Components section a Control and M onitoring section describes the subsystem s LEDs provides an explanation of the manner in which the CR 8e presents normal and abnormal conditions The Operator Control Panel OCP section describes in the general the features of the LCD panel and an illustration pictorially describes items found on the display In chapter 3 a more detailed functional description of each OCP menu option is provided Getting Started CR8e Subsystem at a Glance SS gt En R gt Power On LED Status Indicator LEDs min Note LEDs normally visible only when illuminated Status LEDs shown here for identification Fuse AC Power Cord Connector Module __ Operator Control Panel OCP Speaker Door Lock Status Indicator LEDs Channel Mode LED o0 Power Supply L
39. esponsible for any interference caused by unauthorized modifications to this equipment It is the user s responsibility to correct such interference You are also warned that any changes to this certified device will void your legal right to operate it CAUTION Drives and controller adapter cards described in this manual should only beinstalled in UL listed and CSA certified computers that give specific instructions on the installation and removal of accessory cards refer to your computer installation manual for proper instructions ATTENTION Les lecteurs et cartes contr leurs d crits ici ne doivent tre mont s que sur des ordinateurs homologu s UL et CSA et livr s avec des manuels contenant les instructions d installation et de retrait des accessoires Reportez vous au manuel d installation de votre ordinateur Compliance Information Statement We nStor Corporation Inc 450 Technology Park Lake Mary Florida 32746 407 829 3500 declareunder our soleresponsibility that the product Type of Equipment Disk Array Enclosure M odel N umber CR8e towhich this declaration rdatesisin conformity with theTitle47 of the U S Codeof Federal Regulations Part 15 covering Class B personal computers and peripherals Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation Power
40. f the two sensors To change the temperature threshold of the monitoring system see Heat Threshold on page 49 nStor NAVMAN SEN APM NAP MPNOLSEMESA NE S COMPONENT STATUS CONFIGURATION INFO POST RESULTS D gt INTERNAL TEMP nStor VVVVVVVYVVVYVYVVYVYVVVY CABINET INTERNAL TEMPERATURE MENU ENTER ESCAPE 75 F 24 C MENU ENTER ESCAPE 1 Toview the cabinet internal temperature access the M ain menu and choose HardwareM enu 2 Usethe up down arrow buttons to select Internal Temp and press the Enter button 3 Press the Escapebutton to return to the previous menu or the M enu button to return to the Main Status OK screen Main Menu 45 Using theCR8e Options Menu From the Options M enu the following are available SCSI ID Menu a a Heat Threshold a SAFTE Chain ID m Change Passcode a Unlock Options SCSI ID Menu From the SCSI ID Menu you can set SCSI IDs for drives attached to each of the SCSI channels lower slot and upper slot and set the CR 8e SAF TE processor D upper or lower bus if a Dual bus module is installed You can manually set SCSI IDs for each group of drives from a pre defined table of IDs seeJP4 SCSI ID Settings on page 74 for alist of the possible ID combinations The SCSI IDs which are currently set will be flashing The IDs will be assigned sequentially beginning with the lowest device in the group NOTE Dri
41. hannel 0 and 1 Term Power Jumpers The next set of jumpers J P3 and J P4 addresses termination protocol for a specific set of controllers that use the DEC Fault Bus If you are usinga DEC system where the controller uses this protocol you will need to jumper locations jumper on both pins JP3 and JP4 for each channel that has an external SCSI cable connected T his will disable termination at that point If you are using a standard host adapter that provides Term Power no change is required and SCSI bus termination will occur automatically Power Cord Connector and Fuse The power cord connector supplies the AC power to the CR 8e through a power cord connected to a conventional three hole grounded outlet or power strip A 250V 10 amp fuse is provided to protect the system from any electrical fault 1 0 Interface Card Getting Started Configuration Modules CAUTION Configuration modules must be installed or replaced by qualified service personnel only The CR8e s SCSI bus design provides either of two bus configurations which is determined by the configuration module installed T he D ual Bus module provides a split bus configuration where the enclosure s top four drive slots and the lower four drive slots are on two independent SCSI buses T he Single Bus module connects both SCSI buses together tying all drive slots to one SCSI bus The Single Bus module is larger in physical size than the Dual Bus module and is easily id
42. has failed and identify the failed unit by the absence of its DC Good LED on the PSU Replace the failed component to return the subsystem to a redundant state If you install five 5 or more disk drives and only have two 2 power supplies installed an alarm will sound The Power Supply LED will illuminate steady amber and the OCP display will indicate N on Redundant Power Install a third power supply and the error message will clear followed by the Power Supply LED returning to a steady green For more information see Installing the Third Power Supply on page 19 Subsystem Status Icon A feature of the CR 8e OCP is the at a glance animated icon that appears to indicate subsystem status The icon will appear at the M ain menu screen after 30 seconds of no OCP input activity and provides an at a glance look at system status The icon will be located where the cursor normally appears The animated icon will have a happy face and looks left and right if all the systems are operating normally If an abnormality occurs within the subsystem the icon will change to a sad face requesting your attention Happy Icon Sad Icon systems nominal systems abnormal Power Supply Error Conditions 41 Using theCR8e Main Menu From the M ain M enu selection the following options are available Turn off the audible alarm Select the hardware menu a Select the options menu To access the M ain menu p
43. he LED will also switch to amber if the power system is in a non redundant state A failed component can be identified via the Operator Control Panel and the lack of an illuminated DC Good LED located on each power supply unit Fan Status The Fan Status LED indicates the condition of the cooling fans by changes in its color The LED will illuminate green when all of the fans are functioning normally and will change to amber if any of the fans fail W hen a failed component is present use the Operator Control Panel to identify the failed fan T he fans are identified on the rear door panel via placarded markings For more information see H ardwareM enu on page 42 Status LEDs There are eight Status LEDs located in windows on the front panel for the rack mount system they are the lower set of LEDs and for the tower based system they will be the set on the left hand side These LEDs in conjunction with an approved RAID controller will indicate the status of a specific disk drive by their state flashing or steady and or color amber or green For more information on interpreting these indications see LED Descriptions on page 39 Activity LEDs There are eight Activity LEDs located in windows on the front panel for the rack mount system they are the upper set of LEDs and for the tower based system they will be the set on the right hand side These LEDs will flash indicating a specific drive is being accessed either as reads
44. he failed drive and return it to nStor Corporation refer to the nStor Resource Guide for information on Obtaining a Return M aterial Authorization Replacing a Power Supply CAUTION Power supplies must be replaced by qualified service personnel only 1 Using the Operator Control Panel identify the failed power supply Select H ardware M enu from the M ain M enu and choose Component Status For more information refer to Component Status on page 43 Power Supply 3 Power Supply 2 _ DC Good LED hS Power Supply 1 Replacing a Power Supply Maintenance NOTE When locating the failed power supply the DC Good LED will be OFF 2 Usinga flat blade screwdriver loosen the rear door access screw Open the door to gain access to power supplies 1 and 2 If you are replacing the 3 power supply loosen the two PSU Cover Plate screws Remove the cover plate and skip to step 3 3 Grasp the handle of the subject power supply and pull the supply out of the CR 8e enclosure NOTE Theorientation of the power supply being removed This will facilitate the installation of the replacement supply 4 Remove the new power supply from the shipping carton and inspect the shipment Save the packaging material 5 Slide the new power supply into the cabinet until it reaches its locked position NOTE Orient the power supply in the same manner as th
45. he third channel of the controller can be connected to another Single Bus enclosure Ultra Wide or Fast Wide A 3 channel AM RAID Controller with a Single Bus enclosure connected to each channel Ultra Wide or Fast Wide A 3 channel AM RAID Controller with two Single Bus enclosures connected to each channel Fast Wide A 3 channel AM RAID Controller with two Single Bus enclosures connected to two channels and a dual bus cabinet connected to the third channel Fast W ide A 3 channel AM RAID Controller with four Single Bus enclosures connected to two channels and a dual bus cabinet connected to the third channel Fast W ide A 2 channel AM RAID Controller with two Single Bus enclosures connected to each channel Ultra Wide or Fast Wide A 2 channel AM RAID Controller with one Single Bus enclosure connected to each channel Ultra Wide or Fast Wide For additional configuration options while operating under the Ultra Wide SCSI mode refer to the nStor FeatureCard User s Guide Other Configurations Using the CR8e In this chapter you will find information on the subsystem s enclosure notifications systems and the proper use and operation of the Operator Control Panel Notifications and Error Conditions When the CR 8e subsystem has powered applied it will perform a power on self test POST procedure During the POST operation in addition to the LED notifications you can also monitor the operation of the subsystem test
46. her the upper right or lower left bank of drives When configuring the single bus enclosure with an AM RAID Controller one channel on the controller connects to the right or upper channel Channel 1 connector on the 1 0 Interface card and addresses both banks of drives From the front the drives slots are divided into two banks The left or upper four front drive slots which are connected to Channel 1 on the 1 0 Interface card and the right or lower four front drive slots are connected to Channel 0 on the I O Interface card Dual Bus Enclosure With this configuration you will havea total storage capacity of up to 145 GB using 18 GB disk drives per subsystem enclosure The SCSI IDs of the drives are set by the SAF TE card defaults to IDs 0 1 2 and 4 from the front beginning with the drive located on the right or lower slot of each bank The SCSI IDs can be manually changed from the OCP if required Both banks of drives will normally use the same sequence of SCSI ID numbers when the Dual Bus module is installed NOTE SCSI ID 3isreserved for the SAF TE card processor CAUTION Ensurethat the power switch isin the OFF O position for both the host system and the CR 8e subsystem before connecting any cables 1 Connect one end of a one meter data cable to the Channel 1 connector on the AM RAID Controller Ultra Wide SCSI Mode Installation 2 Connect the other end of the data cable to the Channel 0 SCSI co
47. hoose the SAFTE CHAIN ID selection and press the Enter button 2 Usethe up down arrow buttons and choose between the options None M aste Slavel and Slave2 then press the Enter button NOTE Choose NONE when the cabinet is used in a stand alone configuration or the master slave option is not desired 3 You will be prompted to cycle the power on the CR 8e for the changes to take effect nStor VVVVVVVVVYVVYVVYVYVYVYVY SCSI ID MENU HEAT THRESHOLD S gt SAFTE CHAIN ID CHANGE PASSCODE nStor MENU ENTER ESCAPE ViVi VV Vo VeN Viv Voy Vavaviay vy gt NONE MASTER SLAVE 1 SLAVE 2 MENU ENTER ESCAPE SAFTE CHAIN ID Change Passcode Using theCR 8e This option allows the administrator to create or change a passcode that will protect access to all the items under the selections SCSI ID M enu Heat Threshold and Change Passcode 1 Usetheup down arrow buttons to select Change Passcode and press the Enter button P nStor VVVVVVVVYVVVYVVVYVVYVY A HEAT THRESHOLD SAFTE CHAIN ID gt CHANGE PASSCODE nStor UNLOCK OPTIONS VVVVVVVVVYVVVYVVYVVVY MENU ENTER ESCAPE ENTER NEW PASSCODE v 0000 X MENU peee a ENTER ESCAF nStor VVVVVVVVYVVVVVYVYVYVYVY N PASSCODE CHANGED ESCAPE TO CONTINUE MENU ENTER ESCAPE 4 2 Usetheup down arrow buttons to change the code value
48. hould be maintained at ambient temperatures but must not exceed 117 F 47 C during normal operation Remove each piece from the shipping carton leaving the disk drives in their anti static protective packaging until you are ready to install them Save the packing materials in case you need to ship the CR 8e Secure all cable connectors using the thumb screws finger tight only When connecting the data cable VH D connectors be sure to exercise caution that the connector is inserted carefully and correctly Otherwise it is very likely to bend the pins inside the connector System Requirements Installation Rack Mount Subsystem Assembly You can install the CR 8e into any standard IA E 19 rack cabinet CAUTION Ensure that the location of the CR 8e does not create an unstable condition when installed in the rack cabinet enclosure NOTE Mount the subsystem into the rack enclosure before installing the disk drives T his will reduce the weight required to support during installation 1 Select an appropriate location in your rack cabinet for the CR 8e If you are installing multiple systems review the cabling configuration section later in this chapter for your cable scheme to determine the optimum locations ue p m E l 2l 8 32 Caged Nuts iS 2 Washers mn 8 32 Pan Head Hg 0 lt Screws Rear Rack Vertical A Front Rack Vertical
49. in Status OK screen nStor MASA ASASO ALS ANAS LS ESA AN AS OOD f S gt COMPONENT STATUS CONFIGURATION INFO POST RESULTS INTERNAL TEMP Q MENU ENTER ESCAPE Configuration Info nStor VVVVVVVVYVVYVVYVYVVYVVY D gt PWR SPLY 1 0K PWR SPLY 2 0K PWR SPLY 3 MISSING S i nStor VVVVVVVVVVVYVVYVYVVVY MENU ENTER ESCAPE P FAN 2 0 0 0 OK A FAN 1 SPEED 79 FAN 2 SPEED 79 BUS CONFIG SINGLE MENU ENTER ESCAPE 4 This selection provides information about the subsystem s configuration including such items as the installed feature cards and firmware information NOTE Slot x Cards are the feature cards located on the subsystem rear panel Slot 1 is the lower left feature card slot and slot 2 is the upper right feature card slot Main Menu 43 Using theCR8e 1 Toview the current enclosure configuration access the M ain menu and choose H ardwareM enu nStor VUE TTY Ve ey nStor COMPONENT STATUS VVVVVYVYVVVYVYVYYVVYVVYYY p gt CONFIGURATION INFO j 7 PERRE PROD CR8L SAF TE INTERNAL TEMP Str CARD 1 0 INTERFACE nStor SLOT 2 CARD VVVVVVYVVVVYVVYVYVVYVYVY W O INTERFACE A RAM REVISION 0 23 MENU ENTER ESCAPE O 9 ROM REVISION 1 05 MENU ENTER ESCAPE ID FFFFFFFFh of MENU ENTER ESCAPE 2 Usethe up down arrow buttons to select Configura
50. information see Operator Control Pand on page 40 The fans are identified on the rear door panel using a placard for FAN 1 and FAN 2 For more information on changing a cooling fan see Replacing the Cooling Fans on page 60 Hot Swap Power Supplies CAUTION Power supplies must be replaced by qualified service personnel only Up to three 150 watt hot swap power supplies are incorporated as part of a fault tolerant design N 1 power system Each power supply unit PSU has current share circuitry which balances the load between the installed power supplies In the event of a power supply failure the load is transferred to the remaining power supplies without interruption to the CR 8e s normal operation If a failure occurs the Power Supply Status LED will illuminate amber and an alarm will sound The user can identify the failed component by accessing the OCP and viewing the Hardware Status The PSU DC Good LED will not be illuminated on the failed power supply For more information see Replacing a Power Supply on page 58 Power Switch The power switch is located inside the locking front door and controls AC power to all of the power supplies T his positioning of the switch deters unauthorized users from powering down the CR 8e provided the door is locked T he switch is recessed to prevent inadvertent activation during service activities The switch is labeled with a I for the ON condition and O for
51. ling fan s speed Each fan s speed RPM is controlled via the internal cabinet thermal monitoring system referenced from a user established temperature threshold Cabinet temperature is measured within the drive bay area between drive slots 2 and 3 and between slots 7 and 8 By sensing cabinet temperature in these locations the system provides the most sensitive measurement for maximum protection T he temperature is displayed in both Celsius and Fahrenheit The SAF TE processor monitors the performance of each fan via tach pulses which track the speed RPM of each fan impeller LEDs Power On LED The Power On LED signifies that the CR 8e system has power applied Status Indicator LEDs There are three Status Indicator LEDs to assist the user in determining the current state of the CR 8e subsystem T he following subsections describe each LED Channel Mode The Channel M ode LED indicates the status of the subsystem array by changes in its color and state Steady green indicates normal array activities When the LED changes to amber flashing or steady it indicates abnormal activities For more information see LED Descriptions on page 39 LEDs 9 10 Getting Started Power Supply Status The Power Supply Status LED indicates the condition of the power supplies The LED will illuminate steady green when all the power supplies are functioning normally and will change to amber if one of the power supplies should fail T
52. llers that use the DEC Fault Bus protocol If your controller uses this protocol you will need to jumper jumper on both pins at location JP3 and J P4 on the backplane for the indicated channel that will be used A jumper at either of these locations will disable termination at that point on the SCSI bus If you are using a controller that provides Term Power no change is required and SCSI bus termination will occur automatically Most RAID controllers provide termination for one end of the SCSI bus while the I O Interface card provide final termination at the other end of the bus JP3 and JP4 Fault Bus Protocol Jumpers Add to disable termination JP1 and JP2 Channel 0 and 1 Term Power Jumpers General 21 22 Installation Ultra Wide SCSI Mode Several possible configurations exist for the CR 8e in Ultra Wide SCSI mode However this manual will discuss the two possible configurations using the 1 0 Interface card in Ultra Wide SCSI mode dual bus module in a single enclosure and single bus module in a single enclosure Refer to the nStor FeatureCard User s Guidefor additional configurations when using the Ultra Extender or Differential Converter card W hen configuring a dual bus enclosure subsystem with an AM RAID Controller one channel on the controller connects to Channel 0 on the I O Interface card and the other channel on the controller connects to Channel 1 on thel O Interface card each channel addresses eit
53. lure or damage observe the following Establish a ground for yourself by using the wrist grounding strap or by touching the metal chassis prior to handling or installing the drives or printed circuit board components Remove your new enclosure cabinet from the shipping carton and inspect the shipment Save the packaging material Turn the power OFF to the computer system and the old CR 8e enclosure NOTE Notethe position of the data cables disk drives and the jumpers on I O Interface cards prior to disconnecting or removing the items To facilitate correct installation you may want to tag the cables appropriately The drives should havea drive label located on the front of each drive unit Remove each drive noting its position and store them in a safe location Disconnect the data and power cables from the old subsystem enclosure Rack Mount Systems Only Remove the CR 8e subsystem from the rack cabinet assembly Single Bus M odules Only Remove the Single Bus configuration module from the old enclosure and install it into the new subsystem enclosure Rack M ount Systems Only Install the new CR8e subsystem enclosure into the rack assembly Replacing the CR8e Cabinet 63 64 Maintenance 10 11 12 13 If you havea third power supply installed in the old subsystem remove it and install the PSU into the new enclosure Reconnect and secure the power cord and data cables Install the drives into the new cabinet e
54. n 43 Fuse 6 Replacement 62 Fuse type 63 G Glossary Disk Mirroring 66 Disk Spanning 66 Disk Striping 66 Duplexing 66 Fault Tolerant 66 RAID 67 H Hardware Error 54 HardwareMenu 42 Heat Threshold 49 Hot Spare 66 H ot Swappable Disk Drives 4 1 0 Interface Card 6 Installing Third Power Supply 19 Interface Transfer Rate 69 Internal Temp 45 J J15 76 JP2 73 JP3 73 JP4 74 JP5 75 Jumpers 72 L LED Channel Mode 9 Descriptions 39 Fan Status 10 Power Supply Status 10 LED Descriptions 39 Logical Drive 66 M Mapping 66 Mirroring 66 N NVRAM 37 0 OB Off Bus 47 Operating Environment 69 Operator Control Panel 8 Options Menu 46 Other Configurations 36 P Passcode 51 Physical Drive 67 POST 37 POST Results 44 Power Cord Connector 6 Power Requirements 69 Power Supplies 5 Power Supply Replacement 58 Power Supply Status LED 10 Power Switch 5 Power On LED 9 Product Registration vii R Rack M ount Subsystem Assembly 15 RAM Checksum Failure 38 RAM Read Write 38 README vii Rebuild 67 Register Read Write Failure 38 Index Registration vii ReplacingaDrive 57 ReplacingaFuse 62 Replacing a Power Supply 58 Replacing the Cooling Fans 60 Replacing the CR 8e Cabinet 63 Reset Default IDs Selection 48 Resource Guide vii ROM Checksum 38 S SAF TE 68 SAFTE CHAIN ID 50 SCSI Access 37 SCSI A ccessed Fault T olerant Enclosure 11 SCSI Bus Access Failure 38 SCSI Bus Hangs
55. nable SCSI target ID This allows standardized alert detection and status reporting using the SCSI bus as the underlying transport mechanism Alarm Speaker 11 12 Getting Started Disk drives power supplies cooling fans and temperature are continually monitored and these conditions are then reported over the SCSI bus to the host system When used in conjunction with the AdminiStor Storage Management software the CR 8e can alert the user or LAN administrator of conditions requiring their attention T hese alert notifications can be made via network broadcast or electronic pages in addition to the LEDs and Operator Control Panel alerts found on the CR 8e subsystem T his allows the administrator to receive remote notification of conditions that require corrective action to prevent data loss SAF TE Card Installation Setup The installation of your nStor CR 8e disk array subsystem is essentially a three step process the subsystem is setup and its components installed the cabling is completed based on the supported configurations and the array is then configured This chapter is divided into two sections Setup and Cabling Configuration The Setup section provides the instructions for assembling the rack mount subsystem and installing the hardware components controllers disk drives power supplies etc for both rack mount and deskside tower based subsystems The Cabling Configuration section contains samples of
56. nclosure in exactly the same order as they were in the old subsystem Power ON the new CR 8e subsystem and the host computer system Verify that all systems are operating normally Using the packaging materials from the new cabinet repackage the old cabinet enclosure and return it to nStor Corporation refer to the nStor Resource Guide for information on Obtaining a Return Material Authorization Replacing the CR8e Cabinet Glossary The following terms are used throughout this manual and may be helpful background information on the technology Asynchronous Operations Cache Flush Channel Consistency Check Disconnect Reconnect Operations that bear no relationship to each other in time and can overlap T he concept of asynchronous I O operations is central to independent access arrays in throughput intensive applications Refers to an operation where all un written blocksin a Write Back Cache are written to the target disk T his operation is necessary before powering down the system Refers to one of the SCSI bus connectors on the controllers or termination interface cards Refers to a process where the integrity of redundant data is verified For example a consistency check of a mirrored drive will make sure that the data on both drives of the mirrored pair are exactly the same For RAID level 3 and5 redundancy a consistency check will involve reading all associated data blocks computing parity reading pa
57. nent status silencing the audible alarm establishing a password to protect the subsystem OCP access establishing intra cabinet communications master slave and reading firmware information The OCP uses a four line by twenty character LCD display T here are five function keys that define the menu driven interface Menu nStor Appears When Selector VVVVVVVVVVVYVVYVVVY More Options are Available Above gt TURN OFF ALARM Appears When HARDWARE MENU More Options are a OPTIONS MENU Available Below i j Moves Menu Animated Selector Up Icon MENU ENTER ESCAPE Moves Menu Selector Down Selects Menus Option or Returns to Main Menu Backs Up One Level Selects the Option or Cancels Action Indicated by Selector Controlling and Monitoring Getting Started An animated icon will appear on the display after 30 seconds of no OCP input activity and provides an at a glance look at system status When a happy animated face appears all systems are indicating anominal state When the animated face changes to a sad face the system indicates that a problem has been detected and requires attention The power system status will display the total power available per drive slot in redundant and non redundant mode A maximum supported value of 30 watts per drive bay is available in either mode Also the user can view individual power supply status and configurations The OCP displays information on each coo
58. ng that supports status signals hot swapping drives and enclosure monitoring Combined with the enterprise wide storage management software from nStor additional levels of fault tolerance can be maintained vi Preface Features The following are major features of the nStor CR 8e disk array subsystem RAID Level Support Configuration Drive Support Interface Scalable Capacities RAID levels 0 1 3 5 10 1 0 30 and 50 Deskside tower based subsystem or rack mount subsystem Up to eight 3 5 inch half height form factor hot swappable high performance 7 200 and 10 000 RPM Ultra SCSI disk drives using SCA I technology 4 2 9 1 or 18 2 gigabyte capacities Ultra SCSI Fast 20 SCSI Drive capacities are expandable to 145 GB using 18 GB disk drives and further expansion through daisy chaining of multiple cabinets Hot Swap Power Supplies Cooling Notifications Front Panel SCSI to SCSI Support Termination Locking Door SAF TE Cluster R eady Dual hot swap power supplies expandable to three all with current sharing circuitry Dual high capacity hot swap cooling fans LEDs and audible alarms provide failure notifications A password protected Operator Control Panel OCP for administration control and monitoring functions Provides on board Ultra SCSI to Ultra SCSI RAID processing via the Ultra S2S RAID Controller Automatic SCSI bus termination A key locking front door SAF TE v1 0 c
59. nnector on the right side or upper 1 0 Interface card 3 If required connect one end of the second one meter data cable to the Channel 2 connector on the AM RAID Controller 4 Connect the other end of the second data cable to the Channel 1 SCSI connector on the right side or upper 1 0 Interface card I O Interface Card 1 meter data cable 1 meter data cable Ultra SCSI RAID Controller V O Interface Card with Dual Bus Module installed Rear View CR8e Q F e QO NOTE SCSI termination is automatic and requires no user configuration Refer to Termination on page 21 for information on systems using DEC Fault bus protocol 5 Turn on the power to the CR 8e A fter the power on self test has completed Status and Channel M ode LEDs will be solid green 6 Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection Choose the N one selection refer to SAFTE CHAIN ID on page 50 7 After setting the cabinet identifications you must power cycle the subsystem Observe normal power cycling precautions by waiting a minimum of five 5 seconds before adding power again This will reset the SCSI IDs to a default setting that prevents a SCSI ID conflict under normal conditions 8 Power up your computer system and run the configuration program This completes the hardware inst
60. nnel on the controller connects to Channel 1 on thel O Interface card each channel addresses either the upper right or lower left bank of drives When configuring the single bus enclosure with an AM RAID Controller one channel on the controller connects to the right or upper channel Channel 1 connector on the 1 0 Interface card and addresses both banks of drives From the front the drives slots are divided into two banks The left or upper four front drive slots which are connected to Channel 1 on the 1 0 Interface card and the right or lower four front drive slots are connected to Channel 0 on the I O Interface card Single Dual Bus Enclosure With the SingleBus module is installed all of the disk drives in the CR 8e enclosure are on the same SCSI bus With this configuration you will have a total storage capacity of up to 145 GB using 18 GB disk drives per subsystem enclosure and have access to the drives independently or as a single large array The SCSI IDs of the drives are set by the SAF TE card defaults to IDs 0 1 2 and 4 from the front beginning with the drive located on the right or lower slot of each bank The SCSI IDs can be manually changed from the OCP if required Both banks of drives will normally use the same sequence of SCSI ID numbers when the Dual Bus module is installed NOTE SCSI ID 3isreserved for the SAF TE card processor CAUTION Ensure that the power switch isin the OFF O position f
61. o hot swap the drive without shutting down the subsystem The drive mounting design uses a rail system with built in connectors which allows for easy installation with minimal force Latching clips ensure that the drive is secured once it is installed Hot Swap Cooling Fans CAUTION Cooling fans must be replaced by qualified service personnel only The cooling system consists of two high performance fans fitted to the rear panel These fans draw air from a high pressure plenum across the drives and electronics of the system and exhaust out through the rear door panel The fan speed is thermally controlled to provide reduced operating noise levels In the event of a fan failure or the cabinet temperature approaches the threshold limit the remaining fan will switch to maximum operating speed Cabinet temperature is measured within the drive bay area between drive slots 2 and 3 and slots 7 and 8 T he fan s speed and alarm are keyed to the higher of the two temperatures The SAF TE processor monitors the performance of each of the fans via tach pulses which track the speed RPM of each fan impeller The fans can be replaced during normal operation without having to power down the CR 8e In the event of a fan failure the Fan Status LED will illuminate amber and an alarm will sound Components Getting Started If an error occurs access the Operator Control Panel to determine the cause and locate the failed component For more
62. ogical disks rather than physical ones Also called logical volume A physical array or drive is a collection of physical disks governed by the RAID management software A physical drive appears to the host computer as one or more logical drives Redundant Array of Independent Disks An approach to using multiple low cost drives as a group to improve performance yet also provide a degree of redundancy that makes data loss remote Block striping is provided yielding higher performance than is possible with individual drives T his level does not provide any redundancy Drives are paired and mirrored All data is 100 duplicated on an equivalent drive RAID 10 is acombination of RAID levels 0 and 1 The data is striped across disks asin RAID 0 Each disk has a mirror disk asin RAID 1 Data is striped across several physical drives For data redundancy one drive is encoded with rotated XOR redundancy Data striping of two or more RAID 3 arrays RAID level 30 is a combination of 0 and 3 Data is striped across several physical drives For data redundancy drives are encoded with rotated XOR redundancy RAID level 50 is a combination of RAID level 0 and 5 This refers to the controller card that routes data to and or from the CPU Disk array controllers perform all RAID algorithms onboard the controller The regeneration of all data from a failed disk ina RAID level 1 3 5 or 6 array to areplacement disk A disk reb
63. ompliant enclosure Cluster ready subsystem Storage M anagement Solution Enterprise wide managing and monitoring using AdminiStor M anager and AdminiStor A gent software Features Preface Where to Find Answers When you have questions about your nStor products there are several places you can look to find answers Refer to the following In this guide This user s guide provides detailed information for installing and using the CR 8e disk array subsystem T he manual assumes that the reader is already familiar with the operating system environments where the CR 8e will be installed Resource Guide Use this manual to locate telephone numbers for customer service and technical support technical support email address instructions to obtain an RMA number and conditions of the limited warranty AdminiStor Manager User s Guide Use this manual to install and use the nStor J ava based management and monitoring software AdminiStor Agent User s Guide Use one of these manuals to install and use the nStor SN M P based network RAID subsystem management software On the software diskettes Review theREADME files for last minute information about the release of the software products Via email You may email questions and comments to support nstor com Registering Your Product Registering your product allows nStor to continue providing the highest quality technical support while keeping you informed about product developm
64. or both the host system and the CR 8e subsystem before connecting any cables 1 Connect one end of a one meter data cable to the Channel 1 connector on the AM RAID Controller Fast Wide SCSI Mode Installation 2 Connect the other end of the first data cable to the Channel 0 SCSI connector on the right side or upper 1 0 Interface card 3 If required connect one end of the second one meter data cable to the Channel 2 connector on the AM RAID Controller 4 Connect the other end of the second data cable to the Channel 1 SCSI connector on the right side or upper I O Interface card aly Cho ry 1 0 Interface ke Card S 3 2j g 2 RIS oO k no s 8 S E 2 o ys O D O g iE 2 Ultra SCSI AL oa RAID Controller OG I O Interface L gt A Card Ch 1 Sie go Ch2 cs Cho Ch1 NOTE SCSI termination is automatic and requires no user configuration Refer to Termination on page 21 for information on systems using DEC Fault bus protocol 5 Turn on the power to the CR 8e A fter the power on self test has completed Status and Channel M ode LEDs will be solid green 6 Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection Choose the N one selection refer to SAFTE CHAIN ID on page 50 7 After setting the cabinet identifications you must power cycle the subsystem Observe normal
65. or damage observe the following Establish a ground for yourself by using the wrist grounding strap or by touching the metal chassis prior to handling or installing the drives or printed circuit board components Down your server or power off your computer system in preparation for installing the host adapter if applicable Install the adapter into your host computer For specific instructions refer to your host system s manual and the host adapter s user guide CAUTION Exercise care when handling any hard disk drive Do not drop jar or 3 bump the disk drives Install the disk drives Remove one of the disk drives from its anti static protective packaging H olding the drive by its edges locate the Drive Latching Clips and pull out on the latches to unlock them The Drive Latching Clips are placed in the locked position for shipping purposes Insert the disk drive into the drive bay by aligning its rails into the drive bay slots component side toward the right on rack mount systems or component side down on tower based systems Dual Bus module Thedriveslots are split into two buses one bus connects the left or upper four drive slots and the other bus connects the right or lower four drive slots Depending on to which bus the drives will be configured begin populating the drives starting with the far right slot or lowest slot for that bus Single Bus module T he Single Bus module connects all eight drive slots
66. ow the five steps above except select Set SAFTE ID in step 3 and choose from Set ID on Lower Bus or Set ID on Upper Bus in step 4 Use the up down arrow buttons to change the ID value A N nStor VVVVVVVYVVVVYVYVVYVVVY SET ID ON UPPER BUS i SET ID ON LOWER BUS MENU ENTER ESCAPE a gt nStor VVVVVVVVVVYVVVYVYVVYVY ARROWS CHANGE ID ENTER TO SET NEW ID ESC TO EXIT PROCESSOR ID 3 MENU ENTER ESCAPE Since the subsystem is available in either a split SCSI bus design or as a single SCSI bus you can set the SA F TE card SCSI ID for each bus if a conflict is occurring The default setting is SCSI ID 3 for each bus The setting for SCSI ID OB indicates Off Bus and is generally used when the subsystem is installed in a Slave subsystem in a M aster Slave environment Options Menu 47 48 Using theCR8e NOTE When theSAF TE card is set to off bus LEDs and other error reporting are not driven by the subsystem s off bus SAF TE card but are reported and controlled from the M aster subsystem s SAF T E card Reset Default IDs Selection Choosing the Reset Default ID s option will reset all subsystem SCSI ID s to their factory default settings The default drive ID settings when a dual bus module is installed are 0 1 2 and 4 for both the upper and lower drive groups The default drive ID settings when a single bus mod
67. pplies each fan with 12 volts for full speed operation J15 4r j FAN 4 4 OEM FAN J17 76 J15 FAN and J17 OEM FAN Index A Activity LEDs 10 Animatedicon 41 AudibleAlarm 3 B Backplane 72 c Cables 20 Cabling Configuration 20 Change Passcode 51 Channel ModeLED 9 Component Installation 17 Component Status 43 Components Activity LEDs 10 AudibleAlarm 3 Channel ModeLED 9 Configuration M odules 7 Cooling Fans 4 Door Lock 5 Fan Status LED 10 Fault LEDs 11 Hot Swappable Disk Drives 4 1 0 Interface Card 6 Operator Control Panel 8 Power Cord Connector 6 Power Supply StatusLED 10 Power Switch 5 Power On LED 9 SAF TE 11 SAF TE Card 11 Configuration Info 43 Connectors and Jumpers 70 Cooling Fan Replacement 60 CoolingFans 4 CR 8e Cabinet Replacement 63 D DC Good LED 59 Dimensions 69 Door Lock 5 Drive Latching Clips 17 Drive Replacement 57 Dual Bus Module Single Cabinet 22 26 Dual Bus Module Two Cabinets 28 Dual Bus Module Cabinet with Two Single Bus Module Cabinets 34 E EMC 70 EMI 69 F Failed Diagnostic Test 54 78 Fan StatusLED 10 Fast SCSI 20 Dual Bus M odule Single Cabinet 26 Dual Bus M odule T wo Cabinets 28 Dual Bus Module Cabinet w Two Single Bus Module Cabinets 34 Single Bus M odule Single Cabinet 30 Fast Wide SCSI 20 Fast Wide SCSI Mode 26 Fast Wide SCSI mode 20 Fast 20 20 FirmwareError Conditions 38 Firmwareinformatio
68. r data cable to the Channel 1 connector on the AM RAID Controller 2 Connect the other end of the data cable to the Channel 1 SCSI connector on the upper or right side I O Interface card NOTE TheChannel 1 connector located on the upper or right side 1 0 Interface card is the active connector when the Single Bus module is installed Cho NA I O Interface v d Card 3 w a 2 D 2 wd 2 ne oO fe E oS z Sy Sa Ultra SCSI Y z2 RAID Controller 2c O Interface D E Card Cc ox cs NOTE SCSI termination is automatic and requires no user configuration Refer to Termination on page 21 for information on systems using DEC Fault bus protocol a gt 0 Ch1 30 Fast Wide SCSI Mode Installation 3 Turn on the power to the CR 8e A fter the power on self test has completed Status and Channel M ode LEDs will be solid green 4 Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection Choose the N one selection refer to SA FT E CHAIN ID on page 50 5 After setting the cabinet identifications you must power cycle the subsystem Observe normal power cycling precautions by waiting a minimum of five 5 seconds before adding power again This will reset the SCSI IDs to a default setting that prevents a SCSI ID conflict under normal conditions 6 Power up your computer system and run
69. ress the M enu button Use the up and down arrow buttons to make your selection and press the Enter button P nStor VVVVVVVVVVYVVYVVYVVYVY p gt TURN OFF ALARM HARDWARE MENU OPTIONS MENU MENU ENTER ESCAPE k Hardware Menu From the Hardware M enu selection the following options are available Component Status Configuration Info m POST Results Power On Self Test a Internal Temp nStor VV VEN VV ONY NOVO VOY VOY TURN OFF ALARM D gt HARDWARE MENU S nStor VVVVVVVVVVVYVVVYVVVY OPTIONS MENU p gt COMPONENT STATUS CONFIGURATION INFO POST RESULTS INTERNAL TEMP MENU ENTER ESCAPE MENU ENTER ESCAPE 42 Main Menu Component Status Using theCR 8e The Component Status menu provides a view of the power supplies and fans installed in the CR 8e and their current status Component status can be either OK Missing or Failed 1 If you receive a H ardware Error access the M ain menu and choose the HardwareM enu 2 Usethe up down arrow buttons to select Component Status and press the Enter button 3 Usethe up down arrow buttons scrolling to view the complete list of the components Fan speeds are expressed in of RPM The bus configuration will be displayed for the type of Configuration M odule you have installed 4 Press the Escapebutton to return to the previous menu or the M enu button to return to the Ma
70. rity and verifying that the computed parity matches the read parity Disconnect is a function that allows a target SCSI device typically a disk drive that received a request to perform a relatively long I O operation to release the SCSI bus so that the controller can send commands to other devices W hen the operation is complete and the SCSI bus is needed by the disconnected target again it is reconnected 66 Glossary Disk Mirroring Disk Spanning Disk Striping Duplexing Fault T olerant Hot Spare Logical Drive Mapping Mirroring Data written to one disk drive is simultaneously written to another disk drive If one disk fails the other disk can be used to run the system and reconstruct the failed disk Several disks appear as one large disk using this technology This virtual disk can then store data across disks with ease without the user being concerned about which disk contains what data T he subsystem handles this for the user Datais written across disks rather than on the same drive Segment 1 is written to drive 0 segment 2 is written to drive 1 and so forth until a segment has been written to the last drive in the chain T he next logical segment is then written to drive 0 then to drive 1 and so forth until the write operation is complete T his refers to the use of two controllers to drive a disk subsystem Should one of the controllers fail the other is still available to provide disk I
71. s blinking amber and the Channel Mode LED is steady amber SCSI data cable not properly connected An assigned drive has failed The CR8eis in anon fault tolerant mode Verify that the SCSI data cable is properly connected to the CR 8e SCSI 2 connector and to the controller card Replace the disk drive and begin rebuilding the array see Replacing a Disk Driveon page 57 A specific drive s Status LED is blinking amber the remainder of the drive s Status LEDsin that array are steady amber and the Channel ModeLED is steady amber A specific drive s Status LED is OFF and the Channel Mode LED is steady amber A specific drive s Status LED is blinking green and the Channel M ode LED is steady green An assigned drive has failed The CR 8eis in a non fault tolerant mode and a rebuild operation is in progress The disk drive is missing The CR8eis in anon fault tolerant mode A drive has not been assigned into an array or the drive is a hot spare however itis in a ready state Replace the failed disk drive Drive s Status LED blinking amber Insert a disk drive and begin an array rebuild see Replacinga Disk Driveon page 57 Assign the drive to an array refer to the nStor AM RAID Utilities User s Guide 56 Common Problems and Interpreting the LED Indications Maintenance In this chapter you will find the maintenance procedures to replace individual components
72. s and the subsystem component conditions all from the Operator Control Panel Power On Self Test During the diagnostic POST a continuous tone will sound and the following will be observed The Operator Control Panel will display TestingROM NVRAM and SCSI Access followed by the startup mode screen and the Status OK default screen provided no errors are detected T he Status Indicator LEDs will be as follows e Fan Status LED will be solid amber and change to solid green e Power Supply LED will be solid green e Channel M ode LED will be solid amber and change to solid green If no errors are detected all of the Status Indicator LEDs will be illuminating solid green 38 Using theCR8e Firmware Error Conditions NOTE None of the following error conditions will compromise the data integrity on the CR 8e drives Any of these failures listed below will generate the following Channel ModeLED blinks amber eight times and the alarm will sound eight tones A fter the tones have sounded the Channel M ode LED will change to green and normal operations will be attempted T hese error conditions indicate that the LEDs and alarm functions may not be reliable RAM Read Write Failure This error condition indicates that one or more bytes of the microprocessor RAM failed a write read test ROM Checksum Failure This error condition indicates that the microprocessor ROM failed to generate the proper checksum Regis
73. ser configuration Refer to Termination on page 21 for information on systems using DEC Fault bus protocol 24 Ultra Wide SCSI Mode Installation 3 Turn on the power to the CR 8e A fter the power on self test has completed Status and Channel M ode LEDs will be solid green 4 Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection Choose the None selection refer to SA FT E CHAIN ID on page 50 5 After setting the cabinet identifications you must power cycle the subsystem Observe normal power cycling precautions by waiting a minimum of five 5 seconds before adding power again This will reset the SCSI IDs to a default setting that prevents a SCSI ID conflict under normal conditions 6 Power up your computer system and run the configuration program This completes the hardware installation NOTE For additional configuration options using Ultra Wide SCSI refer to the nStor Feature Card User s Guide Ultra Wide SCSI Mode 25 26 Installation Fast Wide SCSI Mode Several possible configurations exist for the CR 8e in the Fast Wide SCSI mode dual bus with one or two enclosures single bus with one or two enclosures and one dual bus enclosure with two single bus enclosures connected W hen configuring a dual bus enclosure subsystem with an AM RAID Controller one channel on the controller connects to Channel 0 on the I O Interface card and the other cha
74. t de retrait des accessoires Reportez vous au manuel d installation de votre ordinateur NOTE Only drives supplied by nStor Corporation are approved for usein this product Use of other drives could affect the safety and or radio frequency interference characteristics of the product Regulatory Information FCC Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules T hese limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio or television communications However thereis no guarantee that the interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures m_Reorient or relocate the receiving antenna m Increase the separation between the equipment and receiver m Connect the equipment to an outlet on a circuit other than that to which the receiver is connected m Consult the dealer or an experienced radio TV technician for help nStor Corporation Inc is not r
75. t has completed Status and Channel M ode LEDs will be solid green Access the Options menu on the Operator Control Panel and choose the SAFTE CHAIN ID selection For each subsystem identify which subsystem will be the master cabinet and which will be the slave cabinets Generally the master cabinet will the subsystem connected to the controller Refer to SAFTE CHAIN ID on page 50 After setting the cabinet identifications you must power cycle the subsystem Observe normal power cycling precautions by waiting a minimum of five 5 seconds before adding power again This will reset the SCSI IDs to a default setting that prevents a SCSI ID conflict under normal conditions Power up your computer system and run your configuration program This completes the hardware installation Fast Wide SCSI Mode 35 36 Installation Other Configurations There are many possible combinations of controllers and cabling schemes when configuring the CR 8e subsystem enclosures The sample configurations in the previous sections provide the basic configurations H owever the CR 8e is based on an open architecture expandable subsystem and allows for customization to fit your current or future needs Some other possible schemes within SCSI bus length limitations for both Ultra Wide SCSI and Fast Wide SCSI are NOTE A 3 channel AM RAID Controller where two channels connect to a dual bus cabinet with two single bus cabinets Fast Wide T
76. ter Read Write Failure This error condition indicates that one or more of the microprocessor s registers have become defective If the errors occur constantly the CR 8e needs to be serviced Contact nStor Technical Support RAM Checksum Failure If this error condition occurs the Channel M ode LED will alternately blink green and amber indefinitely T his indicates that the firmware stored in the non volatile RAM has become corrupted and new firmware data will need to be downloaded from the SCSI bus to correct this problem Contact nStor Technical Support SCSI Bus Access Failure If this error condition occurs the Channel M ode LED will blink amber four times and the speaker will sound four tones T his indicates that either the SCSI controller failed to respond to a reset command or another device has control of the SCSI bus N ote that this may be caused by other devices having control of the bus at the time the CR 8e is powered ON A fter the tones have sounded there will be a two second delay and the microprocessor will again attempt to initialize the SCSI controller T urning the system OFF then ON again may help resolve this condition Normal operations will be impossible while the SCSI controller remains unresponsive Firmware Error Conditions Using theCR 8e All drive LEDs will illuminate solid green regardless of the error conditions The CR 8e needs to be serviced if this error occurs consistently and is not clear
77. ternal length of 36 inches the remaining cable length is 200 inches or approximately 16 66 feet 5 08 meters for four drives or approximately 6 83 feet 2 08 meters for eight drives Cabling Configuration Installation Because of the enhancements in the CR 8e its possible to extend beyond the limits set forth in the specification H owever a symptom from exceeding this cable limit is a SCSI bus lockup or freeze If you experience a similar problem and are aware of a cabling limit issue reducing the length of cabling and returning the total length to within the specified limit should resolve any problems If you havea cabling issue and require more information contact nStor Technical Support for further assistance Data loss is possibleunder conditions of SCSI bus lockup NOTE Shielded data cables such as those provided with the subsystem must be used to prevent radio frequency interference It is recommended that you use the cables provided by nStor T hese cables have been tested and meet stringent guidelines set forth by SCSI 3 ANSI specifications Termination Termination is required at both ends of the SCSI bus T here are two sets of jumpers on thel O Interface card One set of jumpers JP1 andJP2 routes Term Power in the event that the host controller is not providing it T he default setting is the unjumpered condition jumper offset on one pin only The second set of jumpers addresses a specific set of contro
78. the OFF condition and is illuminated when the power is on for easy identification Depending on the orientation of the subsystem i e in the rack configuration the I label will appear as a and should be interpreted as the ON condition Door Lock The front door has an integral lock that also serves as a door handle In addition the door lock provides security to deter unauthorized access to the disk drives and SAF TE card T wo keys are provided with the system To unlock the door insert the key and turn it in a counterclockwise direction To lock the door turn the key in a clockwise direction Hot Swap Power Supplies 5 6 Getting Started 1 O Interface Card Thel O Interface card provides the connection from the subsystem s bus to the host adapter Located on the I O Interface card are two 68 pin very high density VHD SCSI connectors The connectors are labeled Channel 0 and Channel 1 Thel O Interface card incorporates built in automatic SCSI termination When a data cable is plugged in the system automatically senses the connection and provides the required SCSI termination Two sets of jumpers are provided on the card One set of jumpers JP1 and JP2 routes Term Power in the event that the host controller does not provideit The default setting is the unjumpered condition jumper offset on one pin only JP3 and JP4 Fault Bus Protocol Jumpers Add to disable termination JP1 and JP2 C
79. ting Environment RdativeH umidity Operating N on Operating Power Requirenents Rack M ount Systen Dimensions HxWxD w o Handles Tower Based System Dimensions H xW xL Weight basic configuration of cabine includes two cooling fans Altitude N umber of Drives Supported Total Capacity InterfaceT ransfer Rate H ost Interface Drivelnterface HDD Termination Electromagnetic E missions R equirenents EMI 40 F to 94 F 5 C to 34 C 5 95 non condensing 100 240 VAC auto sensing 50 60 Hz 6 0 A mperes 3 x 150 watts 6 83 x 17 40 x 19 00 17 40 x 6 83 x 19 00 48 0 Ibs without drives installed 56 6 Ibs with three drives installed 200 to 10 000 feet 8 72 8 gigabytes 9 1 GB Drives Up to 40 M B sec Fast W ide SCSI 3 Fast W ide SCSI 3 Automatic Termination FCC Part 15 Class B EN55022 B Technical Information CR 8e continued Safety R equirenents UL1950 CSA C22 2 950 TUV EN 60950 CE Compliance EM C 89 336 EEC EMC Directive Shock Operating 1 0 G 2 50 ms N on O perating 20 0G 2 20ms Vibration Operating 5 500 Hz 0 25 G pk to pk Non Operating 5 500 Hz 1 0 G pk to pk CONNECTORS AND JUMPERS This section provides information about the connector pinouts on the termination interface card and jumper settings on the backplane printed circuit board for your nStor CR 8e subsystem Connectors Located on each termination interface card are two VDH SCSI connectors
80. tion Info and press the Enter button 3 Usethe up down arrow buttons scrolling to view the current configuration 4 Press the Escapebutton to return to the previous menu or the M enu button to return to the M ain Status OK screen POST Results This screen provides a list of the diagnostics performed during the POST procedure If an error has occurred it will be displayed here in addition to the notification provided by the LEDs and alarms see Power On Sdf Test on page 37 nStor iz VEE eT ee ee nStor COMPONENT STATUS VVVVVVYVVVVVYVYVYVVVVY POWER STATUS FW REVISION ROM CHKSUM OK a S P gt POST RESULTS RAM CHKSUM FAILED Vv RAM RIW OK nStor SCSI BUS 0 OK VVVVVVVVVVVYVVVVVVY RAM RIW OK a Q O Q SCSI BUS 0 OK MENU ENTER ESCAPE SCSI BUS 1 OK MENU ENTER ESCAPE _ PROCESSOR OK O O MENU ENTER ESCAPE lt y 44 Main Menu Using theCR 8e 1 Toview thePOST results access the M ain menu and choose H ardwareM enu 2 Usetheup down arrow buttons to select Post Results and press the E nter button 3 Usethe up down arrow buttons scrolling to view the complete POST results lists 4 Press the Escapebutton to return to the previous menu or the M enu button to return to the Main Status OK screen Internal Temp This screen displays the current internal enclosure temperature highest o
81. to one bus Begin populating the drive with the far right or lowest drive slot and work to your left or up Component Installation 17 18 Installation Populate drive bays from the lower right slot first Upper left bay four drive slots Drive Label Lower right bay Component side four drive slots Fully seat the drive by applying pressure with your thumb to the front of the drive Press the Drive Latching Clips until they snap into place The drive is now locked into position Install the remaining drives repeating steps 3 through 7 until all the drives have been installed as desired NOTE Verify that the power switch on the CR 8eis in the OFF position O 9 10 Connect one end of the power cord to the power connector on the rear panel and the other end to a three hole grounded outlet or power strip A UPS is recommended Refer to the Cabling Configuration on page 20 to complete the data cable connections if you are usingthe AM RAID Controller card If you are using the Ultra S2S RAID Controller refer to the nStor Ultra S2S RAID Controller and PC Utilities User s Guidefor information about cabling configurations Component Installation Installation Installing the Third Power Supply If you will be installing five 5 or more disk drives you will be required to install the third power supply CAUTION Power supply installation is to be performed by qu
82. uild normally occurs without interruption of application access to data stored on the array virtual disk This term also known as parity refers to a method of providing complete data redundancy while requiring only a fraction of the storage capacity for redundancy Ina system configured under RAID 3 and 5 all data and parity blocks are divided between the drives in such a way that if any single drive is removed or fails the data on it can be reconstructed using the data on the remaining drives XOR refers to the Boolean Exclusive OR operator 68 Glossary SAF TE Session SCSI Drive Spanning Striping Stripe Order Stripe Width Target ID Write T hrough Cache Write Back Cache Is the acronym for SCSI Accessed Fault Tolerant Enclosures It is a monitoring and communication specification developed by Conner nStor and Intel for sending and receiving server and storage system status information via the SCSI bus Refers to the period of time between any two consecutive system shutdowns System shutdown may be either a power off on or a hardware reset A disk drive equipped with a small computer system interface SCSI Each disk drive will be assigned a SCSI address or SCSI ID which isa number from 0 to 15 The SCSI address uniquely identifies the drive on the SCSI bus or channel Disk spanning allows multiple disk drives to function like one big drive Spanning overcomes lack of disk space
83. ule is installed are 0 1 2 4 5 6 8 and 9 The default SCSI ID for the SAF TE card isID 3 SCSI ID 7 is reserved for the host bus adapter C N nStor vVvvVvVvVvVvVvVvVvVVvVVYVYVYVYVVY SET LOWER SLOT IDS nStor SET UPPER SLOT IDS VvvVvVVVVVVVVVVVVYVVVY SET SAFTE ID ALL SCSI IDS SET TO gt RESET DEFAULT IDS DUAL BUS HODE CYCLE POWER TO EFFECT CHANGES MENU ENTER ESCAPE Lo d O MENU ENTER ESCAPE NOTE You must power cycle the subsystem for the SCSI IDs changes to take effect Also be sure to power cycle the host computer If a PCl based RAID Controller is being used and the host is not power cycled it will kill all drives in the array 1 To reset the SCSI IDs access the M ain menu and choose Options M enu 2 Usethe up down arrow buttons to select SCSI ID M enu and press the Ente button Use the up down arrow buttons to select RESET DEFAULT IDS Press the E scape button twice to return to the M ain Status OK screen then power cycle the host computer and CR 8e subsystem Options Menu Using theCR 8e Heat Threshold NOTE TheHeat Threshold value is pre set at the factory and should not be changed unless directed by nStor Technical Support T he default setting is 116 F 47 C Choose the H eat Threshold M enu to change the temperature value for the thermal monitoring system If the temperature exceeds the value set here a Temperature Threshold Exceeded screen
84. ve SCSI IDs cannot be set individually 1 To manually set the SCSI IDs for the drive sets found in the upper or lower slots access the M ain menu and choose Options M enu rc nStor x VVVVVVYVYVYVYVVYVVVYVVVY nStor gt SCSIID MENU VVVVVYVVYVYVYVYVYVYVYVYVYVYVY HEAT THRESHOLD Sacre CHAR GEE CHANGE PASSCODE v SET SAFTE ID D RESET DEFAULT IDS MENU ENTER ESCAPE X MENU ENTER ESCAPE 2 Usethe up down arrow buttons to select SCSI ID M enu and press the Ente button 3 Usethe up down arrow buttons to select either the Lower or U ppe drive slot IDs or the SAFTE ID and press the Enter button 46 Options Menu U sing theCR 8e 4 Usethe up down arrow buttons to make your SCSI ID group selection and press the Enter button Note the flashing set of IDs if present T hese will be the group currently configured rc N n nStor VVVVVVVYVVVVYVVYVYVYVYVY p gt SET LOWER SLOT IDS SET UPPER SLOT IDS SET SAFTE ID RESET DEFAULT IDS MENU ENTER ESCAPE 4 P nStor VVVVVVYVVVYVVYVYVVYVVVY P LOWER 4 onRnoo Donna Q MENU ENTER ESCAPE S 5 Press the Escapebutton twice or the M enu button to return to the M ain Status OK screen then power cycle the host computer and CR 8e subsystem NOTE effect You must power cycle the subsystem for the SCSI IDs changes to take TochangetheSAF TE card SCSI ID foll
85. ve retries Interface card and host adapter and or drives drop offline Faulty I O Interface card Depending on how many subsystem are connected on the SCSI bus you will need to perform some fault isolation If all the drives on one bus are offline start with the subsystem furthermost out on the chain Disconnect the data cable If the remaining drives return toa normal state it indicates that the isolated subsystem has the faulty component If this does not return the remaining drives to a normal state continue removing each data cable on that bus until the first subsystem is the remaining subsystem If you had to remove all the data cables up to the first subsystem and the problem is still not resolved this could indicate that the I O Interface card in the first subsystem is the suspect faulty card U se one of the cards from the previous subsystems or a new known good card This should return the subsystem bus to anormal condition Note A return to anormal condition is indicated by the drives coming back online After the faulty card is replaced begin re connecting the data cables on the remaining 1 0 Interface cards noting the bus remains in a normal state Common SCSI Bus Problems 55 Troubleshooting Common Problems and Interpreting the LED Indications LED Status Reason Solution Status Indicator LEDs not functioning properly A specific drive s Status LED i

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