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7.Drive Diagnostics
WRT
0
0
1
1
At the completion of the test, the tape will be positioned after the last group written or read and before EOD.
NLR:
0-Drive Log will be initialized before the test
1-Drive Log will not be initialized
Group Count: This defines the number of groups to be written to or read from the tape.
0-Write until EOT or Read until EOD/EOM
>0-Write until count is exhausted or EOM, Read until count is exhausted or EOD/EOM.
If EOM is encountered during Write, EOD will not be written.
In all cases, encountering EOM will be recorded as a hard error. The Diagnostic result for the Error Rate Test will be
as shown in the table below.
Bit
7
Byte
0
Reset
Error
1
2
(MSB)
3
4
This test will result in a loss of logical tape position and therefore a load should be sent before the drive is used for
any normal reads or writes.
7-8
Table 7-6: WRT & RD control bits
RD
0
Command rejected - invalid parameters
1
Read
Fast Search to initial position (conditional on Loop Count)
Repeat until loop count = 0
0
Write Set-mark
Write test pattern
Write EOD at end of first pass
Fast search to initial position (conditional on loop count)
Repeat until loop count = 0
1
Write Set-mark
Write test pattern
Write EOD at end of first pass
Fast search to initial position
Read
Fast Search to initial position (conditional on loop count)
Repeat until loop count = 0
Table 7-7: Error Rate Test results
6
5
Tine
Reserved
Re-Sync
Diagnostic Test Number (02h)
Action
4
3
Error Code
Actual Group Count
SONY AIT-E Turbo drive SDX-250V series Ver.1.0
2
1
0
Error Set
(LSB)
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