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REQUEST SENSE Command (03h) SDLT 600 SCSI Interface Guide

4-220 January 2005 81-81200-02 REV A01

Table 4-130. Supported Sense Keys for REQUEST SENSE Command

Sense

Key

Description

0h NO SENSE. Check the Filemark, EOM, ILI, Additional Sense Code, and Additional

Sense Code Qualifier fields.

1h RECOVERED ERROR. Can result from rounding of Mode Parameters on a MODE

SELECT command or may report that READ / WRITE error rates are reaching drive

specification limits for optimal operation. The drive may still be able to continue to

function without any unrecovered errors for a long period of time, however. The drive

generates a CHECK CONDITION status only if the PER field of Mode Page 01h is

set to 1.

2h NOT READY. The tape medium is not ready for tape operation commands. The tape

medium might not be present in the drive or may be in the process of loading or

calibrating.

3h MEDIUM ERROR. An unrecoverable WRITE, READ, or positioning error occurred.

Detailed device-specific information may be available.

4h HARDWARE ERROR. The Additional Sense Code / Additional Sense Code

Qualifier fields may present more specific information.

5h ILLEGAL REQUEST. The CDB or supplied parameter data specified an

unsupported or illegal operation. Check the Byte Pointer and Bit Pointer fields for an

indication of the field in error.

6h UNIT ATTENTION. The drive generates Unit Attentions after a device reset if:

1) the medium asynchronously becomes ready to the initiator, 2) if another initiator

changes Mode Parameters, 3) if the firmware is updated, or 4) if the latter two items

occur together.

7h DATA PROTECTED. The current tape medium is write-protected. Either the Write

Protect switch on the cartridge is in its enabled position, the tape medium is not the

appropriate type, or a software write protect is in effect.

8h BLANK CHECK. The drive encountered End of Data or a blank tape.

Bh COMMAND ABORTED. Generated when the drive aborts a command.

Dh VOLUME OVERFLOW. Indicates that the drive reached the physical end of tape

medium during writing. The initiator ignored the End of Medium condition and

continued to write to the tape.

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Quantum 1200 Series DAT Autochanger Betriebsanweisung Seite 262