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HP LTO 4 FC, LTO 4 SCSI, LTO 4 SAS manual HP restricted

Models: LTO 4 SCSI

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HP LTO 4 FC, LTO 4 SCSI, LTO 4 SAS manual HP restricted

Contents

volume 2 software integration LTO 4 FC, SCSI and SAS drivesHP LTO Ultrium tape drives technical reference manual HP restrictedHP restricted Legal and notice informationContents 1 Designing backup applications2 Configuration and initialization 3 Use of tapes5 Supporting Ultrium features 4 Factors affecting performance6 Sense keys and codes 7 Exception handlingHP restricted Related documents Documentation mapDocuments specific to HP Ultrium drives Drives-generalInstallation and configuration OperationCartridges InterfaceMaintenance and troubleshooting Dealing with errorsLTO Ultrium features General documents and standardization1 Designing backup applications Non-immediate commandsOptimizing performance Large data transfer sizeCleaning tape heads Managing the use of tapesInformation in Cartridge Memory Monitoring tape useDesign goals for LTO backup applications Diagnostic logsTapeAlert Displaying drive informationInclude the capability to download firmware 2 Configuration and initialization Inquiry string recoveryOperating system drivers Example 16 Configuration and initializationSCSI protocol, regardless of transport or interface type Support for additional LUN Enabling additional LUN supportSupporting additional LUNs 18 Configuration and initialization HP restrictedUsing Cartridge Memory attributes Using MODE SENSE3 Use of tapes LTO cartridge memoryTape status and capacity Finding the remaining capacityInterpreting Log Sense data Using the SET CAPACITY command Command descriptor blockCDB fields Changes to SCSI commands WORM mediaHow WORM media works New additional sense codes and TapeAlert flagsError Usage page ERASE commands rejectedSET CAPACITY command Re-writing media labelsUsing CM to check tape integrity Behavior with a missing or inconsistent EOD valueUnique media identifier Responding to Cartridge Memory data Load countBarcode support RWW retry counts Corrective action4 Factors affecting performance Ways of optimizing performanceDetecting the drive’s speed Ensuring the recommended minimum transfer sizesUsing Cartridge Memory instead of tape headers Using the Performance Log page for diagnosing problemsTime-out values Media type identificationRecommended support of log pages Factors affecting performanceHost-related factors Example Recommendationwhere possible or a reasonably sized RAID system. More disks means RecommendationDrive-related factors Do not interleave write commands with other commands, such as READRecommendation RecommendationFormat-related factors RecommendationRecommendation RecommendationPage 34 Factors affecting performance HP restricted5 Supporting Ultrium features Cartridge Memory LTO-CMAutomation interface Further informationAutomation/Device Interface ADI Automation Control Interface ACI Modes of usage through ACISlave to a library controller ACI command set ACI commands that affect drive streaming performanceSCSI pass-through mode New features in ACI Backward compatibilitySCSI command Encryption support Further details Supporting the ACI protocolRecommended ACI time-out values 42 Supporting Ultrium featuresRecommended power-up sequence Treatment of reserved fieldsRecommended load-unload configuration Firmware upgrade via tape Recommended Get Drive Status polling frequencyACI protocol communications retry Upgrading the drive firmwareFirmware upgrade via the primary host interface Firmware upgrade via ACILibrary firmware upgrade via tape Handling irregular cartridgesCleaning cartridge HP-configured or Universal Expired cleaning cartridge HP-configured or UniversalNon-HP Ultrium 1 cleaning cartridge Unreadable data cartridgeValid firmware upgrade cartridge Data cartridge with unreadable CMCartridge fails to seat or load Cartridge cannot be loadedFrequently asked questions CleaningInvalid firmware upgrade cartridge Is there separate firmware for drives intended to go into libraries?Backup software Resetting drivesResetting via the ACI Reset command Resetting using the ACIRSTL lineOther mode page information Accessing Cartridge Memory without threading the tapeControlling data compression Buffer size at EW-EOMWrite delay time Rewind on resetPartition size 52 Supporting Ultrium features6 Sense keys and codes Sense keys-actions to takeAction Console Message“3h-MEDIUM ERROR” on page 62 . Also see the Media Access For additional sense codes, see “3h-MEDIUM ERROR” onlog the error, terminate I/O to the drive, and pass the appropriate error to the calling applicationAction Console MessageAction Console Messagepage ActionConsole Message pageAdditional sense codes-actions to take PhysicalEnd-of-Tape reached, unable to fit0h-NO SENSE ActionAction Action1h-RECOVERED ERROR 2h-NOT READYAction ActionThe software must issue a LOAD before media access LUN not accessible, port inThe command cannot be executed because the specified Actionmechanism tests are being executed. When the tests are ActionAction Action3h-MEDIUM ERROR A READ , SPACE , WRITE or WRITE FILEMARKS commandAction ActionSend a console message that an unrecovered error on and the drive. Based on this, ask the user to clean theAction ActionAction ActionAction ActionAction ActionAction Send a message to the console indicating that there isThe current command such as READ, SPACE, REWIND ActionAction Action4h-HW ERROR ActionAction Action5h-ILLEGAL REQUEST A MODE SELECT parameter list sent to the drive containsAction Action6h-UNIT ATTENTION persistent reservation using the PERSISTENT RESERVE OUTallowed to execute. In other words, some commands can 32 initiators to register, using PERSISTENT RESERVE OUTAction ActionAction Actionservice action removed all reservations and the persistent A PERSISTENT RESERVE OUT command was executedWRITE BUFFER or MAINTENANCE OUT command A SET DEVICE IDENTIFIER command has been successful7h-DATA PROTECTION ActionAction ActionCode ActionAction Action8h-BLANK CHECK ActionAction ActionBh-ABORTED COMMAND READ BUFFER commandAction ActionDh-VOLUME OVERFLOW A WRITE or WRITE FILEMARKS command has encountered76 Sense keys and codes Typical escalation procedure 1. Retrieve fault information3. Allow the user to try recovery 4. Allow the user to reset devicesMonitoring the condition of the drive and media Supporting TapeAlertFlags TypePage Page Page Page Page Page Page Designing software to use the TapeAlert log TapeAlert modelsReading the TapeAlert log TapeAlert polling usage modelTapeAlert informational exception usage model One-Button Disaster Recovery OBDR Responding to the ‘Clean’ LEDSupporting OBDR Providing pass-through mode Requirements for drivers and logical device managersGlossary see ”read-while-write” Index Page Page HP restricted