Sun Microsystems StorEdge 6900 Series - Manual (Page 26)

10 Sun StorEdge 3900 and 6900 Series Troubleshooting Guide • March 2002
▼ To Suspend the I/O
Use one of the following methods to suspend the I/O while the failover occurs:
1. Stop all customer applications that are accessing the Sun StorEdge T3+ array.
2. Manually pull the link from the Sun StorEdge T3+ array to the switch and wait
for a Sun StorEdge T3+ array LUN failover.
■
After the failover occurs, replace the cable and proceed with testing and FRU
isolation.
■
After testing and any FRU replacement is finished, return the Controller state
back to the default by using virtualization engine failback. Refer to
“Virtualization Engine Failback” on page 81.
Note – To confirm that a failover is occurring, open a telnet session to the Sun
StorEdge T3+ array and check the output of port listmap .
Another, but slower, method is to run the runsecfg script and verify the
virtualization engine maps by polling them against a live system.
Caution – During the failover, SCSI errors will occur on the data host and a brief
suspension of I/O will occur.
▼ To Return the Path to Production
1. Type cfgadm -c configure device.
2. Verify that I/O has resumed on all paths.
# cfgadm -c configure c2::2b000060220041f4