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Troubleshooting & Diagnostics
Module Replacement Procedures
66
Troubleshooting
Step 6
Use the lvextend command to transfer the mirrors back on to the replaced disk. This will take some
time because it copies all of the data from the original copy of the data to the mirrored extents. The logical
volumes are still accessible to users’ applications during this command for two-way mirroring:
# lvextend -m <one greater than num_mirror> <LV name> physical volume path
or for three-way mirroring:
# lvextend -m <one greater than num_mirrors> <LV name> physical volume path
If you follow the example under “Example of a Disk Module Failure”, the host will display:
# lvextend -m <one greater than num_mirrors> /dev/vg00/lvol4 /dev/dsk/c2t4d0
# lvextend -m <one greater than num_mirrors> /dev/vg00/lvol5 /dev/dsk/c2t4d0
At this point, your system should be fully functioning.
If the host fails during Step 6
Execute an lvdisplay command to determine if the command was successfully executed. If the
command did not successfully execute, re-issue the command.
You should perform any other lvextend commands that had not been executed before the system failure.