August 2016 Commands 37
3
Commands
This chapter defines the SCSI-3 commands for the StorageTek T10000 Tape Drive with
a Fibre Channel interface.
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).
Commands
TABLE 3-1 lists the supported commands and references the appropriate page.
TABLE 3-1 Supported SCSI Commands
Command Code Reference Page
Erase 19h SSC 43
Inquiry 12h SPC-2 48
Load Display 06h Vendor specific 57
Load/Unload 1Bh SSC 59
Locate 2Bh SSC 60
Log Select 4Ch SPC-2 63
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