VxVM Disk UDID is correct. Disk Tag is incorrect.
We recently made a change on our SAN that resulted in all the EMC disk's WWN changing. Now all my VxVM disks have a correct UDID, but one of the disk tags still references the old disk type and WWN. For example:
# vxdisk -g datadg -v list datadg01
The second tag listed is incorrect. That is information from the disk before we made the SAN change. Will this cause us problems?
The reason I ask is that we've had two servers get a corrupted VxVM configuration some time after the SAN change. In one case we had corruption and lost a file system. Not sure if our problems are the result of our SAN change or not. Is there something we should do to update VxVM when all the disk WWN change? All I've been doing is a reconfigure reboot, and the disk groups import without error.