Exabyte EXB-8205 Instruções de Operação descarregar pdf (Página 273)

100

101

Byte 22 - Reserved

This byte is reserved.

Bytes 23 through 25 - Remaining Tape

The Remaining Tape field indicates the amount of tape remaining in

1,024-byte physical blocks. This is the LEOT position minus the

current physical position. If the position is past the LEOT, the value is

negative, indicating the number of physical blocks past LEOT. If there

is no data cartridge loaded, the value is 0.

Byte 26 - Tracking Retry Counter

The Tracking Retry Counter field increments when a tracking error

occurs during tape motion start-up. This counter is reset to 0 after any

of the following:

A REQUEST SENSE command is issued with the CLRCNT bit

(byte 05, bit 7) set to 1. Note that in order for the reset to be

performed, 29 (1Dh) bytes of sense data must be read by the

REQUEST SENSE command.

The tape is loaded or rewound.

The mode changes from write to read or from read to write.

The CTS is reset.

Byte 27 - Read/Write Retry Counter

The Read/Write Retry Counter field increments whenever a read or

write operation is unsuccessful and a recovery/retry action is

performed. The counter is reset to 0 after any of the following:

A REQUEST SENSE command is issued with the CLRCNT bit

(byte 05, bit 7) set to 1. Note that in order for the reset to be

performed, 29 (1Dh) bytes of sense data must be read by the

REQUEST SENSE command.

The tape is loaded or rewound.

The mode changes from write to read or from read to write.

The CTS is reset.

May 1994 EXB-8205 and EXB-8505

(Standard and XL)

18-11

18 REQUEST SENSE (03h)

1 2 ... 268 269 270 271 272 273 274 275 276 277 278 ... 445 446

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Exabyte EXB-8205 Instruções de Operação Página 273

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