DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1638TAPE
9
■Tap e D ri ve r es et
An SCSI ‘ ‘BUS DEVICE RESET’’ messag e is tran smitted to the Tap e Drive
to reset it.
■Presence test
An SCSI ‘‘INQUIRY’’ command is sent to the Tape Drive to attempt to
query with it. If the Tape Drive is present, it will return information about the
device type, whether or not its medium is removable, compatibility with
established standard s, vendor and product IDs, and other miscellaneous
information.
■Capacity test
An SCSI ‘‘READ CAPACITY’’ command is sent to the Tape Drive. It returns
with the logical block address and the block length of the last logic b lock
on the medium.
An SCSI ‘‘READ DA TA BUFFERS’’ command is sent to the Tape Drive. This
returns the size of the controller memory data b uffers.
An SCSI ‘‘READ DEFECT DATA’’ command is sent to the Tape Drive. This
returns the addresses of bad blocks on the tape that must be map ped
around.
■Device Diagnostic Tests
An SCSI ‘‘SEND DIAGNOSTICS’’ command is sent to the Tape Drive to
initiate a set of device-d ependent self-tests that are run as a unit. Failures
can be for multiple reasons and the return code which indicates the c ause
of failure is vendor unique. A failure c ondition will be reported as singl e
failure type since the only repair ac tion is to replace the Tape circuit pack.
Table 9-617. TEST #809/#894 Tape Reset Test
Error
Code Test
Result Description/ Recommendation
526 ABORT The Host Adapter has been busied out.
1. Issue the release host-adapter command.
1316 ABORT Could not get access to the Mass Storage System. Other application software
may be using it or background maintenance tests may be running.
1. Retry the command at 1-minute intervals for a maximum of 5 retries.
2. If the test continues to abort, verify that the daily translation-save operation
is not in progress (issue the display system-parameters maintenance
command to display the time for scheduled maintenance and the "y/n"
option for saving translation daily).
Continued on next page