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101

Jukebox SCSI-2 Command Set

Send Diagnostic Command (1DH)

Chapter 3 3-35

Jukebox SCSI-2 CommandsJukebox SCSI-2 Commands

Send Diagnostic Command (1DH)

This command causes the library to perform certain predefined

diagnostic test/exercise routines.

The Request Sense (Table 3-5 on page 3-8) and the Receive Diagnostic

Results (Table 3-29 on page 3-33) commands can be used to get the

results of a test.

SelfTst When set to 1, the Poweron Selftest runs. This selftest

is equivalent to running Test Sequence 1, the Poweron

Sequence. The parameter list length must be 0.

When set to 0, the diagnostic specified in the parameter

list is run.

DevOfL Must be set to 1 for any test other than Selftest.

UnitOfl Must be set to 1 for any test other than Selftest.

Parameter List

Length The number of parameter bytes in the Data Out Phase

that describes the test to be run. The valid range is

between 2 and 10, although this value must be 0 if the

Selftest bit is set to 1. See Table 3-32 on page 3-36.

Table 3-31 Send Diagnostic Command CDB

Byte 7 6 5 4 3 2 1 0

0 Operation Code (1DH)

1 Logical Unit Number

(0)

Reserved (0) SelfTst DevOfL UnitOfl

2 Reserved (0)

3 Parameter List Length (MSByte)

4 Parameter List Length (LSByte)

5 Control Byte (0)

1 2 ... 217 218 219 220 221 222 223 224 225 226 227 ... 377 378

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