Adaptec AEC-4412B, User Manual

Page 1: ...AEC 4412B 7412B Stock Number 511640 00 Rev B Page Front Cover Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98 User s Guide AEC 4412B 7412B External RAID Controller...

Page 2: ...Current Date 3 19 98 ECN Date 3 20 98 Adaptec Inc 691 South Milpitas Boulevard Milpitas CA 95035 1998 Adaptec Inc All rights reserved Adaptec the Adaptec logo is a trademark of Adaptec Inc which may b...

Page 3: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev B Page i Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98 R AEC 4412B 7412B External RAID Controller User s Guide...

Page 4: ...this user s guide first you will find answers to most of your questions here If you need further assistance please contact us We offer the following support and information services Electronic Suppor...

Page 5: ...FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radi...

Page 6: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev B Page iv Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98...

Page 7: ...l 1 6 Battery 1 7 Upgrade Options 1 7 How to Order Upgrades 1 8 Reference Documents 1 8 External Documents 1 8 Adaptec Documents 1 8 2 Hardware Installation AEC 4412B Canister Installation Steps 2 1 A...

Page 8: ...29 Accessing the Front Panel Display Main Menu 3 29 Accessing the System Menu 3 30 Front Panel Display Menu Options 3 30 Using the Bridge Flash Loader Utility BFLU 3 32 Accessing the BFLU Using a VT...

Page 9: ...ng Terminal Emulator and COM Port Problems 6 1 Host SCSI Channel Problems 6 2 Device SCSI Channel Problems 6 4 A Array Basics Array Types A 1 RAID 0 Striped Disks A 2 RAID 1 RAID 1 0 Mirrored Disks A...

Page 10: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev B Page viii Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98...

Page 11: ...supports single ended or differential host UltraSCSI buses The AEC 7412B supports Fibre Channel to UltraSCSI single loop The AEC 4412B RAID controller is a fault tolerant SCSI to SCSI RAID controller...

Page 12: ...EDO ALI Finale 486 PCI chip set two chip integrated CPU DRAM PCI IO solution PCI to PCI Bridge providing full CPU and PCI bus concurrency AIC 7895 PCI dual SCSI interface controller SCSI disk channel...

Page 13: ...lithium disk battery for continuous Real Time Clock RTC power when the unit is shut down Daughter Boards The AEC 4412B 7412B main board supports three different daugh ter board options depending on yo...

Page 14: ...er status Note See Using the Front Panel Display on page 3 27 for information on how to use the front panel push button controls and the meaning of the LEDs Back panel I O connectors SELECT FAULT STAT...

Page 15: ...fications of the AEC 4412B 7412B Physical The following table shows the physical specifications of the main board the daughter boards and the canister Mother Board Form factor 4 95 x 7 30 inch mother...

Page 16: ...re Channel Reliability Calculated MTBF 114 223 AEC 4412BD 117 796 AEC 4412BS MTTR Mean Time To Repair 20 minutes Temperature Operating Front bezel intake ambient 5o C to 35o C Internal storage enclosu...

Page 17: ...t can be upgraded to reconfigure the controller Adaptec offers the following three daughter board options Single ended UltraSCSI Differential UltraSCSI Single Loop Fibre Channel By exchanging the daug...

Page 18: ...es at Phone 1 800 442 7274 Email Sales Adaptec com For more information about the upgrade options and other Adaptec RAID products visit our World Wide Web WWW site at http www adaptec com raid Referen...

Page 19: ...ers the hardware installation of the AEC 4412B 7412B External RAID Controller AEC 4412B Canister Installation Steps 1 Prepare the host system by using a SCSI host adapter such as the AHA 2940UW for th...

Page 20: ...g it to the mounting brackets Note Use a minimum of four size 6 32 screws with a maximum length of 3 8 of an inch 4 Connect the host SCSI output to the SCSI CHANNEL 2 HOST connector on the back of the...

Page 21: ...ote You will need at least three drives to create a RAID 5 array and an additional drive if you want a spare If convenient put at least one drive on each drive channel 6 Connect the drives with a SCSI...

Page 22: ...s the CONFIG port on the back of the Canister to one end of the serial RS 232 DB9 cable The RS 232 adapter cable is provided 10 Connect the other end of the serial RS 232 DB9 cable to an available COM...

Page 23: ...re installation steps See Configuration Quick Start Steps on page 3 3 to complete the configuration AEC 7412B Canister Installation Steps 1 Prepare the host system by using a Fibre channel host adapte...

Page 24: ...remove the two jack screws from the Fibre channel DB9 receptacle 4 Screw the Fibre channel DB9 receptacle into the DB9 connector punch out located on the enclosure chassis 5 Connect the external Fibr...

Page 25: ...nnel Use standard SCSI device cables Note You will need at least three drives to create a RAID 5 array and an additional drive if you want a spare If convenient put at least one drive on each drive ch...

Page 26: ...the Canister to one end of the serial RS 232 DB9 cable 11 Connect the other end of the serial RS 232 DB9 cable to the COM port at the back of a standard PC or ASCII terminal optional step 12 Connect a...

Page 27: ...e displayed through the front panel display Using either the front panel display or the AEC 4412B 7412B Administrator Utility you can Create arrays Delete arrays Monitor array statistics Verify array...

Page 28: ...ge between the two different modes Running the Administrator Utility To switch from the front panel display to the Administrator Utility follow these steps 1 Make sure the controller is connected to a...

Page 29: ...ze See Adding an Array on page 3 10 3 If you selected a RAID level other than RAID 0 continue with adding an array including a spare drive if you have a sufficient number of drives 4 Reboot the system...

Page 30: ...is for an upgrade See Using the Bridge Flash Loader Utility BFLU on page 3 32 Note Windows 3 x and Windows NT 3 5x include a pro gram called Terminal which does not support ANSI color In this case sel...

Page 31: ...00 If the rate has been set higher than will correctly run set the terminal back to 9600 bps and invoke the Flash Loader utility described in Using the Bridge Flash Loader Utility BFLU on page 3 32 us...

Page 32: ...olors try to set your terminal emulation program to ANSI emulation If no colors are seen in this mode select N at the prompt in Figure 3 3 and the AEC 4412B 7412B will operate in monochrome mode You c...

Page 33: ...en Selecting Menu Options Option names in most menus include a hot key a green character in color monitors and an underlined character in monochrome moni tors To select one of these options just type...

Page 34: ...light menu options the Help window automatically changes to provide information about the highlighted option To close the Help windows press Ctrl H again About the System Menu The Administrator utilit...

Page 35: ...ections Configuration Step by Step Instructions The following sections describe the steps needed to configure the AEC 4412B 7412B RAID controller using the Administrator Utility If you are configuring...

Page 36: ...pears The following table describes the RAID levels and the drive requirements for each level Note A RAID 10 is when there are more than two drives in a mirrored array See Comparing RAID Levels on pag...

Page 37: ...d keys until the drive name is highlighted and then pressing Enter The names of selected drives appear to the right in the Adaptec Array box see Figure 3 9 To select drives on a different channel pres...

Page 38: ...c To select each spare follow the directions given in step 3 When you have selected the specified number of spares the Selection List Menu reappears automatically 6 When the next menu appears select A...

Page 39: ...stem to be rebooted in order to see the new array Netware v3 12 and 4 1x can recognize new devices by typing the command SCAN FOR NEW DEVICES at the console prompt Deleting an Array Note If the array...

Page 40: ...ime date Select color or monochrome display Line draw characters Clock temp display Serial port flow control Communications port baud rate Rescan backend SCSI buses for changes Hot swap pause Error me...

Page 41: ...nly affects the device channel Host SCSI channel rates are controlled by setting the host adapter SEP Configuration Menu A SEP SAF TE processor is a SCSI device from which the RAID controller can inqu...

Page 42: ...he RAID controller polls the enclosure s SEPs for status changes The default setting is 5 seconds Add Temperature allows the controller s on board tempera ture sensor to provide temperature informatio...

Page 43: ...ause Some drive enclosures allow you to remove and replace drives while SCSI bus activity continues others do not Note Always use the Hot Swap Pause option before you remove or replace any drives in a...

Page 44: ...n Figure 3 15 appears 2 To continue type y Otherwise type n While SCSI bus activity is paused the server or terminal beeps to remind you to replace the drive and resume activity When you have replaced...

Page 45: ...and you will be prompted to select a specific array The Array Menu shown in Figure 3 17 has options for display sta tus of this array only These options include I O statistics Verifying and auto corr...

Page 46: ...358 00 Current Date 3 19 98 ECN Date 3 20 98 Display Statistics Displays read write statistics for an array or for a specific drive Temporary Array Statistics To display for the entire array the num b...

Page 47: ...playing statistics press Ctrl Z From the pop up menu select Reset Statistical Data When prompted to con firm type y to reset the statistics Like the first method this method rezeros all temporary stat...

Page 48: ...Displays information on the selected array and on drives included in the array see Figure 3 20 Display Array Overview Displays an overview of the array including creation date array type capacity sta...

Page 49: ...ve Status The Display Array Drive Status screen shown in Figure 3 22 dis plays the status of drives within an array including capacity status up or down array type drives array member number SCSI ID a...

Page 50: ...n appears to the right of the drive number and the drive light itself starts blinking 3 To stop blinking the drive light press Enter again Verify Functions Verifies the data on the specified array RAI...

Page 51: ...annot reconstruct data in a RAID 0 array RAID 3 RAID 4 and RAID 5 data is reconstructed from the user and parity data on the good drives Mirrored data is copied from the other drive in the mirrored pa...

Page 52: ...eration As reconstruction begins the Configuration screen for the array as shown in Figure 3 27 appears A message on the second line indi cates the percentage of reconstruction complete Adding a Spare...

Page 53: ...to cancel it When the confirmation message appears press any key to return to the Configuration menu Deleting a Spare Drive To delete a spare drive from an array select the Delete Spare com mand from...

Page 54: ...ta A fully charged battery can provide a minimum of 72 hours backup time LED Label Description Color Function Fault Controller fault Red Solid ON when controller is powered up and fails any internal d...

Page 55: ...g these steps 1 Reboot the controller and hold down the Select button on the front panel The BFLU menu appears in the front panel display 2 Use the or buttons until you see the Run Bridge menu option...

Page 56: ...the follow ing messages appear Adaptec AEC 4412B Array State Date Time Temperature Accessing the System Menu To access the System menu press the up or down arrow buttons The top line of the front pan...

Page 57: ...ID Bridge LUN Termination Termination Power Channel Configuration Channel Ultra SCSI Initiator ID SEP LUN Termination Termination Power Hardware Information BIOS Revision Parity Memory Base Revision...

Page 58: ...erial RS 232 interface required for downloading firmware images or The front panel display Follow the instructions below depending on which method you want to use Accessing the BFLU Using a VT 100 ANS...

Page 59: ...The AEC 4412B 7412B will automatically reboot when download ing is complete Running Onboard Diagnostics To run onboard diagnostics select option 4 Rebooting the AEC 4412B 7412B To continue to boot the...

Page 60: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev B Page 3 34 Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98...

Page 61: ...it numbers LUNs UltraSCSI Data transfer Synchronous or Asynchronous data transfer Wide 16 bit and Narrow 8 bit data transfer Hard reset alternative SCSI bus parity checking The following feature is no...

Page 62: ...d in the CDB will be ignored unless an Identify message is not provided The AEC 4412B 7412B supports the following SCSI 2 commands Format unit Inquiry Mode Select 6 Mode Sense 6 Read 6 and Read 10 Rea...

Page 63: ...list length field must be zero in the defect list header After receiving the defect list header the AEC 4412B 7412B returns with a good status without affecting the media contents Inquiry Table 4 2 a...

Page 64: ...Device Type 1 RMB Device Type Qualifier 2 ISO Version ECMA Version ANSI Version 3 AENC TrmIop Reserved Response Data Format 4 Additional Length n 4 5 Reserved 6 Reserved 7 RelAdr W32 W16 Sync Linked...

Page 65: ...nit is not supported RMB 0 Media not removable Device Type Qualifier 0 This field is reserved for SCSI 1 ISO Version 0 No compliance with ISO SCSI specification is claimed ECMA Version 0 No compliance...

Page 66: ...16 bit wide SCSI is supported Sync 1 Synchronous data transfers are supported Link 0 Linked commands are not supported CmdQue 1 Tagged command queuing is supported SftRe 0 The hard reset alternative...

Page 67: ...ormat Mode Sense 6 The Mode Sense command as shown in Table 4 5 allows the host to read mode pages from the AEC 4412B 7412B The AEC 4412B 7412B will support the following SCSI 2 mode pages Read write...

Page 68: ...y need to do high level formats The information within them is calculated by the AEC 4412B 7412B based on the current array configuration In the caching page the write cache enable WCE and read cache...

Page 69: ...Read Capacity The Read Capacity command as shown in Table 4 8 allows the host to determine the number of logical blocks on a logical unit Table 4 7 Read 10 Command Byte Bit7 Bit6 Bit5 Bit4 Bit3 Bit2...

Page 70: ...t Request Sense The AEC 4412B 7412B will maintain separate sense data including sense key additional sense code and additional sense code qualifier for each initiator This data is updated whenever a c...

Page 71: ...ed Errors Information The unsigned LBA associated with the sense key Table 4 11 Request Sense Command Byte Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 0 03h 1 LUN Reserved 2 Reserved 3 Reserved 4 Allocati...

Page 72: ...ero The reservation identification and extent list length fields are ignored since they only apply to extent reservations While a LUN is reserved for one initiator other initia tors may only send Inqu...

Page 73: ...ommand as shown in Table 4 17 allows the host to request an AEC 4412B 7412B self test Send Diagnostic is only supported when the SelfTest bit is set to one with both the PF bit set and parameter list...

Page 74: ...s or is synchronized with the copy still in the AEC 4412B 7412B s read cache The Imm RelAdr Logical Block Address and Number of Blocks files are all ignored the command executes as if all these fields...

Page 75: ...y for the host to determine if the AEC 4412B 7412B is ready to accept media access commands Table 4 19 Synchronize Cache Command Byte Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 0 35h 1 LUN Reserved Imm R...

Page 76: ...Power on Self Test POST Selection timeout n a POST complete 1st TUR Check condition Unit Attention power on reset 6h 29h 0h POST complete drives not yet ready command to any LUN Check condition Not Re...

Page 77: ...zero indicates no data is to be transferred This is not considered an error The DPO Bytck and Reladr bits are ignored Write 6 and Write 10 The AEC 4412B 7412B will support 6 and 10 byte write CDBs Ta...

Page 78: ...ero indicates 256 logi cal blocks shall be transferred In the 10 byte Write CDB a transfer length of zero indicates no data is to be transferred This is not considered an error The DPO FUA and Reladr...

Page 79: ...essages but will respond correctly to initia tors that issue these messages Table 4 26 SCSI Messages SCSI 2 Message Name Data Directions Supported Abort Out Abort Tag Out Bus Device Reset Out Clear Qu...

Page 80: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev B Page 4 20 Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98...

Page 81: ...ith the associated FCP Fibre Channel Protocol SCSI supported commands The chapter also includes Link Service com mands supported including basic and extended NL_Port Support Supports up to 15 Initiato...

Page 82: ...Any unsupported commands will be rejected by the controller with a RJT response Abort Sequence ABTS Basic Accept BA_ACC Basic Reject BA_RJT Port Login PLOGI Port Logout LOGO Process Login PRLI Proces...

Page 83: ...e 7 6 5 4 3 2 1 0 Reserved 1 Reason Code 2 Reason Explanation 3 Vendor Unique Table 5 3 Port Login PLOGI Byte 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 Li...

Page 84: ...ress ID NPort Identifier 1 2 3 IEEE Company Identifier 4 5 6 Unique Identifier 7 Table 5 5 NPort Common Service Parameters Byte 7 6 5 4 3 2 1 0 0 HIghest ANSI FC PH Version 1 Lowest ANSI FC PH Version...

Page 85: ...ble 5 6 Port Login Accept Payload PLOGI ACC Byte 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 Link Service Command Code 4 19 NPort Common Service Parameters...

Page 86: ...0 0 0 1 0 0 0 0 0 Link Service Command Code 1 0 0 0 1 0 0 0 0 Page Length 2 0 0 0 0 0 0 0 0 3 0 0 0 1 0 1 0 0 Payload Length 4 0 0 0 0 1 0 0 0 Type Code 5 0 0 0 0 1 0 0 0 Type Code Extension 6 OPAV R...

Page 87: ...5 4 3 2 1 0 0 0 0 0 0 0 0 1 0 Link Service Command Code 1 0 0 0 1 0 0 0 0 Page Length 2 0 0 0 0 0 0 0 0 3 0 0 0 1 0 1 0 0 Payload Length 4 0 0 0 0 1 0 0 0 Type Code 5 0 0 0 0 0 0 0 0 Type Code Extens...

Page 88: ...rent Date 3 19 98 ECN Date 3 20 98 Table 5 9 Discover Address ADISC Byte 7 6 5 4 3 2 1 0 0 0 1 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 Link Service Command Code 4 Reserved 5...

Page 89: ...Date 3 19 98 ECN Date 3 20 98 Table 5 10 Discover Address Accept ADISC ACC Byte 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 Link Service Command Code 4 Res...

Page 90: ...an FCP command and end with FCP responses The operations include all task management functions such as reset and queue con trol All communication to the AEC 7412B must implement the SCSI FCP protocol...

Page 91: ...ECN Date 3 20 98 6 Source ID S_ID 7 8 0 0 0 0 1 0 0 0 Type 9 10 F_CTL 11 12 Sequence ID SEQ_ID 13 0 0 0 0 0 0 0 0 DF_CTL 14 0 0 0 0 0 0 0 0 15 0 0 0 0 0 0 0 0 Sequence Count SEQ_CNT 16 Originator ID 1...

Page 92: ...ved CTS ATS RSV D 11 Reser ved RDD WRD 12 27 Com mand Descr iptor Block CDB 28 31 Data Lengt h Byte Bit Name Description 7 0 Logical Unit Number The LUN field is an 8 byte field of which the AEC 7412...

Page 93: ...tion is sent as the next response to any command NPort and Process Logins are preserved 4 3 Reserved Must be zero 0 2 Clear Task Set When set clears the queues for all initiators 1 Abort Task Set When...

Page 94: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev B Page 5 14 Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98...

Page 95: ...ed through the front panel LCD are also provided Terminal Emulator and COM Port Problems Problem Screen continuously puts out garbage characters The likely cause of this problem is a baud rate mismatc...

Page 96: ...terminal emulator The AEC 4412B 7412B supports XON XOFF flow control and works properly in most cases with no flow control Problem Screen looks correct but clock is not being updated Check to be sure...

Page 97: ...ayed during host SCSI BIOS scan Check to assure that LUN support is enabled Most SCSI host adapt ers such as the AHA 2940UW ship with LUN support disabled by default Use Display Array Status to check...

Page 98: ...B 7412B hangs during display of connected drives and never reaches the Administration Utility screen Check your array enclosure documentation to be sure that the enclo sure is properly configured for...

Page 99: ...y fails The host system views the AEC 4412B 7412B controllers as a single SCSI disk drive It is actually an array of physical disks behind a RAID controller The AEC 4412B 7412B therefore is managed by...

Page 100: ...taining the same data When data is written to a mirrored array it is written twice once to each disk in the pair A RAID 1 array has only one set of paired disks A RAID 1 0 array has multiple pairs acr...

Page 101: ...for data protection The main difference is that RAID 3 usually synchronizes writes to its disks while RAID 4 can send data to its disk independently RAID 4 is best suited for transaction processing a...

Page 102: ...ID 0 2 Data striping without redun dancy Highest performance No data protection one drive fails all data is lost RAID 1 2 Disk mirroring Very high Performance Data protection Minimal penalty on write...

Page 103: ...e RAID4 Not widely used 3 Block leveldata striping with dedicated parity drive Data striping supports multiple simultaneous read requests Write requests suffer from same single par ity drive bottlenec...

Page 104: ...00 Rev B Page A 6 Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98 Mixing Disks on Different RAID Controller Channels An AEC 4412B 7412B RAID controller has two device channels 0 and...

Page 105: ...error received and additional information about the error The error displayed through the front panel LCD looks sim ilar to the following The two or three digit error code represents the error messag...

Page 106: ...where the error occurred Table B 1provides the list of hexadecimal numbers and the specific device they repre sent Battery Error Messages When an error occurs due to battery failure the front panel LC...

Page 107: ...ec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98 System temperature range Voltage range Under voltage Over voltage Not installed Short circuit Low Unknown failure Reset Fast charge initiated...

Page 108: ...he mother board D6 The mother board revision is not currently supported Var 1 Board revision Power OFF the controller and re try in a few seconds If that doesn t work the mother board may be defective...

Page 109: ...ause the voltage level is out of range Var 1 Minimum voltage Var 2 Channel number Var 3 Voltage level Var 4 Reference value Var 5 Tolerance Var 6 Maximum Voltage Check the power source or power supply...

Page 110: ...ctive Replace the mother board 49F There is no daughter board installed in the controller If the daughter board is not rec ognized remove and then rein stall it If that doesn t correct the problem the...

Page 111: ...mother board may be defective Replace the mother board 5C6 PCI configuration verification test Power OFF the controller and re try in a few minutes If that doesn t work the mother board may be defect...

Page 112: ...ipped with the board 892 Invalid data or parity cache size memory installed One Mbyte DRAM memory is installed however the controller requires 4 MByte or 16 MByte memory SIMMs Remove and then reinstal...

Page 113: ...l timer interrupt error The interrupt never occurred The mother board may be defective Replace the mother board 9B4 Programmable interval timer interrupt error The interrupt was received later than ex...

Page 114: ...d may be defective Replace the mother board BBC I2C internal chip error The board CPU can not talk to the register S3 correctly Var 1 Read value Var 2 Default value The mother board may be defective R...

Page 115: ...splay or and RS 232 interface Front Panel Display 1 Reboot the controller while holding down the Select button 2 Select Flash Utilities 3 Select Clear Battery BU RS 232 Interface 1 Reboot the controll...

Page 116: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev B Page B 12 Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98...

Page 117: ...layed 3 22 array types A 1 reference document A 4 arrays data block size 3 12 deleting 3 13 mixing disks A 5 recognizing 3 13 selecting drives on a different channel 3 11 selecting types 3 10 Arrays T...

Page 118: ...5 9 disk array A 1 disks using disks from different manufacturers A 5 using disks with different capacities A 5 E electrical specifications daughter board 1 6 mother board 1 6 error codes and descript...

Page 119: ...8 overview 3 1 P parity disk A 2 performance information temporary statistics 3 20 performance statistics 3 21 physical specifications canister 1 5 daughter board 1 5 mother board 1 5 PLDA 5 2 pollin...

Page 120: ...4 16 write 6 and write 10 4 17 write and verify 4 17 SCSI features 4 1 SCSI IDs assigning 2 3 2 7 SCSI 2 commands 4 2 SCSI 2 compliant interface 4 1 seek 6 and seek 10 SCSI command 4 13 selecting arr...

Page 121: ...00 Current Date 3 19 98 ECN Date 3 20 98 Index 5 Index V Var2 defined B 1 verify SCSI command 4 16 verifying arrays tracking verification 3 25 verifying data 3 24 vibration specifications 1 6 W Window...

Page 122: ...AEC 4412B 7412B User s Guide Stock Number 511640 00 Rev A Page Index 6 Print Spec Number 497358 00 Current Date 3 19 98 ECN Date 3 20 98...