Sun Microsystems 3900 Series User Manual
108
Sun StorEdge 3900 and 6900 Series Troubleshooting Guide • March 2002
Notes
■
When inserting a loopback connector into the T Port, there will be NO green light
indicating a proper insertion. However, the test will run and be valid. There is
currently an RFE to address this issue.
indicating a proper insertion. However, the test will run and be valid. There is
currently an RFE to address this issue.
■
If only one of the links has failed and the I/O is travelling over the remaining
link, once the failed link is replaced and recabled, I/O will be automatically be
routed over the repaired link by the switch. No manual intervention is required.
link, once the failed link is replaced and recabled, I/O will be automatically be
routed over the repaired link by the switch. No manual intervention is required.
■
If both links have failed and a LUN failover has occured, after repairing the links
and recabling them, the user will have to manually perform a ’mpdrive failback’
to return the paths to their optimal state. I/O will then resume as normal over
the T Ports.
and recabling them, the user will have to manually perform a ’mpdrive failback’
to return the paths to their optimal state. I/O will then resume as normal over
the T Ports.
T1/T2 Isolation Procedures
1. Run
linktest
from the Storage Automated Diagnostic Environment for a guided
isolation procedure.
2. After replacing the failed FRU, run
mpdrive failback,
if needed.