TEST UNIT READY

Table 102. TEST UNIT READY Command

 

7

6

5

 

4

 

3

 

2

1

0

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation Code (00h)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Logical Unit Number (0)

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The TEST UNIT READY command returns Good status if a cartridge is loaded and ready.

VERIFY

Table 103. VERIFY Command

 

7

6

5

4

 

3

2

1

0

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation Code (13h)

 

 

 

 

 

 

 

 

 

 

 

 

1

Logical Unit Number (0)

Reserved

Immed(0)

BCmp(0)

Fixed

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

:

 

 

 

Verification Length

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

The VERIFY command is supported by all drives.

The VERIFY command causes data to be read from the tape and passed through the drive’s error detection and correction hardware to determine whether it can be recovered from the tape. The amount of data to be read is indicated by the Verification Length field and the Fixed flag in the same manner as is used in a READ command. (See “READ” on page 42.)

The Immed and BCmp flags are not supported and must be set to 0.

82Ultrium Internal Tape Drive and 3580 Ultrium Tape Drive: SCSI Reference

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Image 96
IBM T200F manual Test Unit Ready Command, Verify Command

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