DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-557DISK (MSS Disk Circuit Pack)
9
Disk Loop-Around Tests (#814)
This test extends the Host Adapter Loop -Around test to send data from the Host
Adapter to buffers on the Di sk Drive circuit pack and back to the Host Ada pter. It
may detect errors related to the Host Ad apter, SCSI bus, and the Disk Drive
circuit pack. It i s intended to functionally test the Dis k Drive circuit pack to the
extent possible without actu ally writing data to the disk.
This test consists of two sets of tests:
■Disk Internal Loop-Around
Data is generated in the RAM of the Host Adap ter and transferred to its
SCSI Dat a Memor y. A SCSI WRITE DATA BUFFERS command i s sent to
the Disk Drive circuit pack which causes the Disk Drive circuit pack to
copy the data to its b uffers. A SCSI READ DATA BUFFERS command is
then sent by the Host Adapter to the Disk Drive circ uit pack which causes
5102 ABORT Could not allocate the Mass Storage System to run this test
1. Retry the command at 1-minute intervals a maximum of 5 times.
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).
NO
BOARD The disk has been placed in the "uninstalled" state.
1. Verify that the disk drive is fully inserted and powered up.
2. Attempt a demand reset of the disk.
1FAIL A Disk diagnostic test failed.
1. Retry the command a maximum of 5 times.
2. If the command continues to fail, replace the Disk circuit pack, issue the
reset disk command and perform the restore disk command. This will
take up to 1 hour for a complete restore.
3. If the test continues to fail, replace the MSSNET circuit pack.
PASS The Disk passed all diagnostic tests. Look at the results of other tests to see if it
is operating corr ectly.
1. See the MSS Error Actions Table at the end of the TAPE section.
Table 9-228. TEST #813 Disk Diagnostic Test — Continued
Error
Code Test
Result Description/ Recommendation
Continued on next page