Sun Microsystems 3900 Series, 6900 Series manual To Failback the Virtualization Engine

▼To Failback the Virtualization Engine

In the event of a Sun StorEdge T3+ array LUN failover, use the following procedure to fail the LUN back to its original controller.

1.From the Storage Service Processor, type:

#/opt/svengine/sduc/mpdrive failback -d v1 -j 60020F2000006DFA

where:

-dVirtualization engine pair on which to run the command

-jController serial number, which corresponds to the Sun StorEdge T3+ array WWN of the affected partner pair

The failback command will always be performed on the controller serial number, regardless by which controller the LUN actually is currently owned (the Master or Alt-Master). All VLUNS are affected by a failover and failback of the underlying physical LUN.

The controller serial number is the system WWN for the Sun StorEdge T3+ array. In the above example, the master Sun StorEdge T3+ array WWN is 50020F2300006DFA, and the number used in the failback command is 60020F2000006DFA.

2. The SLIC daemon must be running for the mpdrive failback command to work. Ensure that the SLIC daemon is running by using the command found in CODE EXAMPLE 7-3.

If no SLIC processes are running, you can start them manually using the SUNWsecfg scripts, which are located in the /opt/SUNWsecfg/bin/startslicd -n v1 directory.

CODE EXAMPLE 7-3 slicd Output Example

# ps -ef grep slic
root	6299	6295	0	Jan 04 ?		0:00 ./slicd
root	6296	6295	0	Jan 04	?	0:02 ./slicd
root	6295	1	0	Jan 04	?	0:01 ./slicd
root	6357	6295	0	Jan 04	?	0:00 ./slicd
root	6362	6295	0	Jan 04	?	0:03 ./slicd

Chapter 7 Troubleshooting Virtualization Engine Devices 83

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