Quantum DLT-S4 Guide de l'utilisateur télécharger pdf (Page 359)

Chapter 4 SCSI Commands

SEND DIAGNOSTIC Command (1Dh)

DLT-S4 Interface Reference Guide 325

3 Reads the two tracks of data.

4Rewinds the tape.

The execution time for the Level 2 test is approximately 12 minutes. See

table 180

for information on setting the SEND DIAGNOSTIC CDB fields to

select a Level 2 test.

The Level 1 and Level 2 diagnostic tests do not take parameters.

If the PF bit is set to one and the SelfTst bit is set to one, the drive will

reject the command and indicate an

Illegal Request. If the PF bit is set to

one and the SelfTst bit is set to zero, the Dev Ofl and Unit Ofl bits are

ignored and the drive will request the number of page bytes specified in

the Parameter List Length field. If the PF bit is set to zero, the SelfTst,

DevOfl, and UnitOfl bits are interpreted as defined in table 180

Table 180 SEND

DIAGNOSTIC CDB Fields —

Selftst, DevOfl, and UnitOfl

If the specified diagnostic test passes, the drive returns GOOD status. If

the specified diagnostic test fails, the drive returns

CHECK CONDITION

status with Sense Data containing information about the failure, as

described in table 181

Selftst DevOfl UnitOfl Diagnostic Test Run

0 0 0 Level 1 Test with Drive and Media

Health Check

(drive is on-line)

0 0 1 Illegal Combination

0 1 0 Illegal Combination

0 1 1 Level 1 Test and Level 2 Test with Drive

and Media Health Check* (drive is on-

line)

1 0 0 Level 1 Test only (drive is on-line)

1 0 1 Illegal Combination

1 1 0 Level 1 Test (drive is off-line)

1 1 1 Level 2 Test (drive is off-line)

1. Drive and Media Health Check. This test checks for the highest priority

DLTSage Tape Alert that has been set against the drive and/or the media.

This information is reported in response to the next RECEIVE

DIAGNOSTIC RESULTS command.

1 2 ... 354 355 356 357 358 359 360 361 362 363 364 ... 385 386

Pas de commentaire

Quantum DLT-S4 Guide de l'utilisateur Page 359