Tandberg Data VXA-320 (VXA-3) User Manual

Page 61

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O

CTOBER

2006

VXA-320 T

APE

D

RIVE

47

SCSI C

OMMAND

P

ROTOCOL

Illegal

Request

5h

Indicates that there was an illegal parameter in the CDB or in the additional

parameters supplied as data for a command or that the tape drive is in the wrong

mode to execute the command. If the tape drive detects an invalid parameter in

the CDB, the tape is not written. If the tape drive detects an invalid parameter in

the additional parameters supplied as data, the tape may already be altered. This

sense key can also indicate an invalid Identify message.

Unit

Attention

6h

Indicates one of the following:
ƒ

The tape drive has been reset (by a power-on reset, a Bus Device Reset message,

or a SCSI bus reset).

ƒ

An initiator changed the MODE SELECT parameters since the last command

was issued to the tape drive.

ƒ

The eject button was pressed and the data cartridge was ejected.

ƒ

A data cartridge was inserted and automatically loaded.

ƒ

The internal microcode (firmware) was changed.

ƒ

A log parameter (counter) reached a specified threshold value (assuming that

RLEC bit on the MODE SELECT Control Mode page is set to 1).

This sense key is reported the first time any command is issued by each initiator

after the condition is detected, and the requested command is not performed.

This sense key is cleared when the next command other than INQUIRY or

REQUEST SENSE is received by the tape drive.

Data

Protect

7h

Indicates that a command that writes to tape was attempted on a write-protected

data cartridge. The write operation is not performed.

Blank

Check

8h

Indicates that the tape drive encountered blank tape or format-defined EOD

(blank tape) during a read, space, or locate operation.

Aborted

Command

Bh

Indicates that the tape drive aborted the command. This condition occurs when

an Initiator Detected Error (05h) message is received during command execution

or when a Message Reject (07h) or SCSI bus parity error is detected by the tape

drive during Command or Data Out phase.
The initiator may be able to recover by trying the command again.

Volume

Overflow

Dh

Indicates that the last WRITE or WRITE FILEMARKS command reached the

physical end of tape (PEOT) and that data may remain in the buffer.

Miscompare

Eh

Indicates that the source data did not match the data read from the tape.

Table 6-8 Supported sense keys (continued)

Sense key

Hex

Value

Description

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