Quantum 1200 Series DAT Autochanger Podręcznik Użytkownika Pobierz pdf (Strona 259)

SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands

81-81200-02 REV A01 January 2005 4-217

SENSE command with a WRITE FILEMARKS command with the Immed bit set to 0. This forces the

drive to flush any buffered data to tape. A subsequent REQUEST SENSE command returns the actual

physical and logical position of the drive to the initiator.

The following figure illustrates the REQUEST SENSE data format.

Figure 4-121. REQUEST SENSE — Data Format

Bit

Byte

7 6 5 4 3 2 1 0

0 Valid Response Code (70h or 71h)

1 Obsolete

2 Filemark EOM ILI Rsv’d Sense Key

3 – 6

(MSB)

Information

(LSB)

7 Additional Sense Length (n – 7)

8 – 11

(MSB)

Command Specific Information

(LSB)

12 Additional Sense Code (ASC)

13 Additional Sense Code Qualifier (ASCQ)

14 Field Replaceable Unit Code

15 SKSV C/D Reserved BPV Bit Pointer

16 – 17

(MSB)

Field Pointer

(LSB)

18 Internal Status Code (VS)

19 – 20 Tape Motion Hours

21 – 24 Power On Hours

25 – 28 Tape Remaining

29 Reserved

1 2 ... 254 255 256 257 258 259 260 261 262 263 264 ... 293 294

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Quantum 1200 Series DAT Autochanger Podręcznik Użytkownika Strona 259