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updatevv and Solaris MPxIO
Posted: Wed Nov 30, 2011 4:49 pm
by brett
Hey all,
This is probably a dumb question but if I use the updatevv command to refresh a snapshot, does the Solaris MPxIO device name changes or will it stay the same?
Thanks
--Brett
Re: updatevv and Solaris MPxIO
Posted: Thu Dec 01, 2011 6:04 am
by brett
Well, sadly, it looks like updatevv updates the VV_WWN which is super annoying and will in fact change the device path.
--Brett
Re: updatevv and Solaris MPxIO
Posted: Tue Jun 12, 2012 3:35 pm
by tool
If you're still around...
I only update sets of VVs, so I use this command in a ksh script:
updatevv -ro -f set:${VVSET}
My WWNs and device paths get preserved on Solaris 10 using MPxIO.
Some of the help sections specify that when you create the initial snapshots, you should specify a high-number VV ID. Looks like the array uses the lowest free ID number when anyone creates new volumes/snaps. Combine that with the idea that refeshing snaps temporarily removes the snap VV. Sounds like you don't want those two things happening at the same time.