Scsi Attachment, Speed | IBM T400F instruction

SCSI Attachment

To communicate with a server, the IBM TotalStorage LTO Ultrium 2 Tape Drive uses the Ultra160 LVD SCSI interface.

Physical Characteristics of the SCSI Interface

The Ultrium 2 Tape Drive contains a high-density, 68-pin, D-shell receptacle connector (HD68) for attachment to the server. The HD68 connector includes the connectors for the SCSI signal, the SCSI ID, and the drive’s power. The drive supports LVD SCSI cables with HD68 connectors.

For a list of available cables, see Appendix A, “Tools and Supplies” on page 95.

Speed

The Ultra160 LVD SCSI interface is backward compatible with older SCSI technology and is capable of data transmission at 160 MB/s. Ultra160 SCSI uses the three management features of the Ultra3 SCSI standard that specifically affect data transfer rate:

vDouble transition clocking - a data-transfer technique that enables data rates to double without increasing clock speed

vDomain validation - a procedure that detects and adjusts SCSI configuration issues that might prevent interoperation between SCSI devices

vCyclic redundancy check (CRC) - an error-checking technique

Because the cables, connectors, and terminators are the same for the Ultra160 and Ultra2 SCSI interfaces, devices with those interfaces can be mixed on the same bus and each device can operate at its fully rated speed.

4IBM TotalStorage LTO Ultrium 2 Tape Drive

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IBM T400F manual Scsi Attachment, Physical Characteristics of the Scsi Interface, Speed

Contents

Setup, Operator, and Service Guide Page Setup, Operator, and Service Guide First Edition November Contents Operating the Tape Drive Contents Vi IBM TotalStorage LTO Ultrium 2 Tape Drive Safety and Environmental Notices Vii Laser Safety and Compliance Sample caution notices follow Preface IBM TotalStorage LTO Ultrium 2 Tape Drive Introduction Cartridge Compatibility Sleep ModeSpeed Matching and Channel Calibration Supported Servers Supported Operating Systems Supported Servers and Operating SystemsSupported SAN Components for Fibre Channel Attachment Scsi Attachment Physical Characteristics of the Scsi InterfaceSpeed Address Assignments Supported Topologies Fibre Channel AttachmentType of Fibre Channel Connection to Server Speed Physical Characteristics of the Fibre Channel Interface World Wide Names Supported Device Drivers IBM TotalStorage LTO Ultrium 2 Tape Drive Specifications Specification Measurement Physical SpecificationsPower Specifications Other Specifications for both interface types 26C Installing the Tape Drive Rear View of the Scsi Drive Rear View of the Fibre Channel Drive Remove Power from the Enclosure Unpack the Drive Setting the Scsi ID with Jumpers Setting the Scsi ID Scsi Drive OnlySet the Scsi ID or Arbitrated Loop Physical Address Setting the Scsi ID Through the LDI Interface Setting the Scsi ID with a Scsi ID SwitchSupplying Termpower Scsi Drive Only Installing Setting the Loop ID to Provide Status About the Loop LID Setting the Loop ID to Provide Additional Loop IDs Alpa LID Change the Link Services of the Drive optional Fibre Channel Pin Characteristic Through Speed Selection Fibre Channel Pin Characteristic Through Mount the Tape Drive into the Enclosure Connect and Test Power to the Tape Drive Connect the Internal Scsi or Fibre Channel Cable Run Drive Diagnostics Install the Device DriversConnect the Internal LDI Cable optional Connect the External Scsi Interface to the Server Connect the External Fibre Channel Interface to the Server Configure the Tape Drive to the Server, Switch, or HubConnect the External LDI Interface to the Server optional IBM TotalStorage LTO Ultrium 2 Tape Drive Operating the Tape Drive Front view of the IBM TotalStorage LTO Ultrium 2 Tape Drive Status Light Color and Condition Meaning Status Light Single-Character Display Unload ButtonSingle Red Dot Inserting a Tape Cartridge Inserting a cartridge into the Ultrium 2 Tape Drive Cleaning the Drive Head Removing a Tape Cartridge Selecting a Diagnostic or Maintenance Function Function Code 2 Update Tape Drive Firmware from FMR Tape Function Code 3 Create FMR Tape Function Code 4 Force a Drive Dump Function Code 6 Run Scsi or Fibre Channel Wrap Test Running a Scsi Wrap Test Testing the Circuitry at the Fiber Cable Running a Fibre Channel Wrap Test Function Code 7 Run LDI or RS-422 Wrap Test Function Code 8 Convert FMR Tape to Scratch Tape Function Code a Clear Error Code Log Function Code 9 Display Error Code LogFunction Code C Insert Cartridge into Tape Drive Function Code E Test Cartridge & Media Function Code F Fast Read/Write Test Function Code H Test Head Function Code P or U Enable or Disable Post Error ReportingFunction Code L Reserved for Future Use Updating the Firmware Exiting Maintenance ModeUpdating Firmware through the Library/Drive Interface Updating the Firmware with an FMR Tape Cartridge Using the Media IBM TotalStorage LTO Ultrium 200 GB Data Cartridge Data Cartridge Cleaning Cartridges Setting the Write-Protect Switch Handling the Cartridges Provide Training Ensure Proper Packaging Provide Proper Acclimation and Environmental Conditions Perform a Thorough Inspection Handle the Cartridge Carefully Checking for gaps in the seams of a cartridge Examples of Cartridge Problems Example Improper Placement of Leader Pin Repositioning or Reattaching a Leader Pin Repositioning a Leader Pin Remove the rewind tool by pulling it away from the cartridge Reattaching a Leader Pin Cartridge manual rewind tool see IBM TotalStorage LTO Ultrium 2 Tape Drive A67E0036 On the leader pin Using the Media Temperature 10 to 45C 16 to 32C 16 to 25C −23 to 49C Ordering Media Supplies Disposing of Tape CartridgesIBM Part Number Product Description Ordering Custom Bar Code Labels America Europe and Asia Resolving Problems If the problem is this Do this Methods of Receiving Errors and Messages If the error or message was Do this Presented by Descriptions and Corrective Actions for Errors and Messages Code Cause and Action Code Cause and Action For Problems with Writing Data For Problems with Reading Data For Scsi drive For Fibre Channel drive Using Sense Data Obtaining Error Information from the RS/6000 or pSeries Press F4 to view the sense data see the example in Figure Example of a Drive Error Log Example of a Scsi Bus Error Using a Device Driver Utility to Obtain a Dump Using the Drive to Obtain a DumpObtaining a Drive Dump Viewing the Drive Error Log Fixing Scsi Bus Errors Resolving Problems Reported by the ServerFixing a Consistent Error with a Single Drive on a Scsi Bus IBM TotalStorage LTO Ultrium 2 Tape Drive Fixing Fibre Channel Errors Starting Problem Determination Fixing a Consistent Error in a Point-to-Point Topology Fixing Intermittent Fibre Channel Errors Resolving Media-Related Problems Servicing the Tape Drive Removing a Scsi Tape Drive from an Enclosure Removing a Fibre Channel Tape Drive from an Enclosure Manually Removing a Tape Cartridge Removing the Cartridge Determining whether the tape is broken Servicing Fixing an Internal Jam Removing the top cover of the drive Rewinding the leader pin into the tape cartridge Guiding the leader block into the home position IBM TotalStorage LTO Ultrium 2 Tape Drive Servicing Rotating the loader motor gear until the cartridge ejects Appendix A. Tools and Supplies IBM TotalStorage LTO Ultrium 2 Tape Drive TapeAlert Flags Supported by the Drive Appendix B. TapeAlert FlagsFlag Description Action Required Number Hex 0Ch 22h IBM TotalStorage LTO Ultrium 2 Tape Drive Trademarks IBM Industry Canada Class B Emission Compliance Statement Federal Communications Commission FCC Class B StatementAvis de conformité à la réglementation d’Industrie Canada Germany Electromagnetic Compatibility Directive European Union EU Electromagnetic Compatibility DirectiveJapan Vcci Class B ITE Electronic Emission Statement Warranty Getting Help Numbers and Symbols Glossary See Celsius Data compression. See compression Fibre Channel configuration/status connector Fibre Channel-Arbitrated Loop FC-AL topology. a FMR tape. See field microcode replacement tape LAN. See local area network LDI. See Library/Drive Interface Log sense data. See Scsi log sense data Media capacity. See capacity Native sustained data transfer rate. See data Transfer rate See second SAN. See Storage Area Network Glossary TotalStorage LTO Ultrium 2 Tape Drive. See IBM Ultrium 2 Tape Drive. See IBM TotalStorage LTO WAN. See wide area network IBM TotalStorage LTO Ultrium 2 Tape Drive Index AIX Alpa LID Cables Connecting to a bus Fixing errors Sleep mode Wrap test, running Fibre Channel LDI or RS-422 IBM TotalStorage LTO Ultrium 2 Tape Drive Page GA32-0455-00