M2488 PRODUCT GUIDE

TAPE UNIT SCSI COMMANDS

set to 1) with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and the additional sense key set to INVALID FIELD IN PARAMETER LIST,

f. Issue a MODE SELECT command, sending these parameters,

The Disable Block Descriptor (DBD) bit value of 1 specifies that no block descriptor is returned in the MODE SENSE data. When this bit is set to 0, the target will return a block descriptor in the MODE SENSE data.

The Page Control (PC) field indicates the type of page parameter values to be returned by the target. The target returns the same page length for each supported page regardless of the value in the PC. The combination of the page control field value and the page code being set causes the target to return the appropriate values for the page selected by its respective page code. A page code value of 3Fh indicates all pages implemented by the target are returned to the initia- tor with the values reported defined by the page control field. For a page code value of 3Fh, all pages are returned in ascending page code order, except for mode page 00h which will always be reported last.

Regardless of the setting of the PC field, the Mode Sense data header and block descriptor will return the current values for the fields contained in them.

April 1997

CG00000-011503 REV. A

4-61

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Fujitsu manual M2488 Product Guide Tape Unit Scsi Commands