DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-897H-ADAPTR (MSS Host Adapter)
9
Host Adapter Read and Clear Firmware Error
Counters Test (#822)
The host adapter firmware constantly executes background testing of the host
adapter hardware. If any irregularities are detected, counters in dual port RAM
are incremented. The Read and Clear Firmware Error Counters test reads these
counters from the host adapter dual port RAM and increments the appropriate
software counters based on which ones are non-zero. The dual port RAM
counters are then cleared.
The firmware maintains sixteen counters that record the following errors:
■ Unexpected interrupt from the SCSI Bus Interface Controller Chip
(SBICC).
■ SBICC timed out during SCSI command.
■ Direct Memory Access Controller (DMAC) generated error interrupt.
■ DMAC timed out without interrupt.
■ Universal Synchronous/Asynchronous Receiver/Transmitter (USART)
diagnostics failed.
■ Host adapter LED test failed.
■ Tape LED test failed.
NO
BOARD
The host adapter has been placed in the "uninstalled" state.
1. Verify that the host adapter is fully inserted and powered up.
2. Attempt a demand reset of the host adapter.
1
FAIL The host adapter could not be reset successfully.
1. Retry the command after 1 minute.
2. If the test fails, issue the reset host-adapter command.
3. If the command fails, replace the MSSNET circuit pack (see the circuit
pack replacement section above) and issue the test mssnet long
command.
PASS The host adapter was reset correctly. Check results of other tests to see if it is
operating correctly.
1. See the MSS Error Actions table at th end of the section on TAPE.
Table 9-342. TEST #820/#893 Host Adapter Reset Test — Continued
Error
Code
Te st
Result Description/ Recommendation
Continued on next page
