Exabyte EXB-8205 Betriebsanleitung PDF herunterladen (Seite 238)

100

101

Fixed Length Mode (Fixed = 1)

If the Fixed bit is 1 and the actual length of any one block does not

match the requested block length, the CTS transfers the number of

blocks requested until it encounters the block with the incorrect

length. Then, it terminates the READ command and returns Check

Condition status. The REQUEST SENSE data is set as follows:

Valid 1

ILI 1

Sense Key No Sense (0h)

Information

bytes

Indicate the number of blocks not transferred to the

initiator, including the block with the incorrect length.

ASC 00h

ASCQ 00h

FSC 0Ah

When the READ command terminates in fixed mode, the tape is

positioned after the block with the incorrect length (at the start of the

next logical block).

Illegal Requests

The following conditions cause the CTS to return Check Condition

status with the sense key set to Illegal Request (5h):

The requested block length is greater than 240 KBytes.

The Fixed bit is set to 1 and the block length in the MODE

SELECT command is 0.

The Fixed bit is set to 1 and the SILI bit is set to 1.

The tape is in an invalid position for the CTS to perform a read

operation (a READ command was issued after a WRITE or

WRITE FILEMARKS command).

The CTS is not ready or no data cartridge is loaded.

12-10

EXB-8205 and EXB-8505

(Standard and XL)

510503

12 READ (08h)

1 2 ... 233 234 235 236 237 238 239 240 241 242 243 ... 445 446

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