Exabyte EXB-8205 Instruções de Operação descarregar pdf (Página 230)

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12.1 About This Command

The READ command transfers one or more bytes or blocks of data

from the CTS to the initiator, beginning with the next logical block.

Notes:

For a read operation, the CTS automatically sets itself to the data

format used when the tape was written.

The CTS can read tapes that have a combination of fixed-length

and variable-length data blocks.

The CTS will report the early-warning condition (LEOT reached)

if the REW bit is set with the MODE SELECT command (byte 08,

bit 0, in the Device Configuration Page).

If the disconnect option is enabled, the CTS can disconnect from

the initiator while the READ command is executing.

12.2 Field Definitions

Byte 01, Bit 1 - SILI

The SILI (Suppress Illegal Length Indication) bit is used to suppress

an illegal length Check Condition status for read operations that read

logical blocks that do not contain the defined number of bytes. This

bit is valid only when the read operation is for variable-length logical

blocks (that is, when the Fixed bit is set to 0).

0 – Do not suppress illegal length indication Check Condition status.

1 – Suppress illegal length indication Check Condition status.

Note: If the Fixed bit is 1 (fixed-length logical blocks) and the SILI

bit is 1, the CTS returns Check Condition status with the sense

key set to Illegal Request (5h). The ASC and ASCQ fields are

set to 24h and 00h.

12-2

EXB-8205 and EXB-8505

(Standard and XL)

510503

12 READ (08h)

1 2 ... 225 226 227 228 229 230 231 232 233 234 235 ... 445 446

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