Sun Oracle Storage Tek T10000, Справочное руководство

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E20425-01 • 65
4
Commands
This chapter defines the SCSI-3 commands for the StorageTek T10000 Tape
Drive with a Fibre Channel interface.
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Overview
StorageTek uses the SCSI-3 command set to transfer commands and data
over Fibre Channel. The following describes how StorageTek implements
these SCSI commands:
• A single command may transfer one or more logical blocks of data.
• The target may disconnect from the arbitrated loop to allow activity by
other SCSI devices while a device prepares to transfer data.
• On completion of normal commands (successful or unsuccessful), the
target returns a Status Byte to the initiator. Because most error and
exception conditions cannot be adequately described with a single status
byte, a Check Condition status code indicates that additional information is
available in the FCP Response Information Unit (IU).
• An initiator should never attempt to send a second command to a device
until the command in progress ends. The second command terminates
with a Check Condition status (Command Overrun).
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Commands
Table 36 lists the supported commands and references the appropriate page.
Table 36. Supported SCSI Commands
Command Code Reference Page
Erase 19h SSC 70
Inquiry 12h SPC-2 71
Load Display 06h Vendor specific 81
Load/Unload 1Bh SSC 83
Locate 2Bh SSC 85
Log Select 4Ch SPC-2 86
Log Sense 4Dh SPC-2 87
Mode Select 15h / 55h SPC-2 105