Quantum DLT 4000 Manuál stáhnout pdf (Strana 173)

SCSI Commands

Quantum DLT 4000 Tape Drive 5-73

MODE SELECT (6) / (10) Command (15h) / (55h) (continued)

Table 5–38 Disconnect / Reconnect Page - Field Descriptions

Field Name Description

PS Parameters Savable. For MODE SELECT, this bit must be 0.

Additional Page Length This field indicates the number bytes in the page. However, the value

does not include bytes 0 and 1. The length is returned in MODE

SENSE commands and must subsequently be set to the same value

when performing MODE SELECT. If the page length does not match

that expected by the drive, a CHECK CONDITION status is returned,

sense key set to ILLEGAL REQUEST.

The drive returns a CHECK CONDITION status with sense key set to

ILLEGAL REQUEST if it receives an unsupported Page Code or a Page

field with values not supported or changeable. In such cases, no

parameters are changed as a result of the command.

Buffer Full Ratio Not supported. Any value is ignored.

Buffer Empty Ratio Not supported. Any value is ignored.

Bus Inactivity Limit Not supported. Any value is ignored.

Disconnect Time Limit Not supported. Any value is ignored.

Connect Time Limit Not supported. Any value is ignored.

Maximum Burst Size This value specifies the maximum amount of data that will be

transferred without disconnecting. A value of 0 sets no limit. Any

value is in units of 512 bytes. For example, a value of 8 represents 4

Kbytes. Values that are not multiples of 8 are rounded up to the

closest multiple of 8.

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Quantum DLT 4000 Manuál Strana 173