[Veritas-vx] DR test with VxVM
ddunham at taos.com
Fri Aug 20 10:56:57 CDT 2004
> I have to do a DR test by restoring all my backup
> tapes (ufsdump under Solaris 8) to a completely
> different server model, different disk sizes, numbers
> and layouts. I have an evaluation license key for
> VxVM. The DR company will provide me with a big enough
> server with one disk pre-installed with Solaris to
> save time over the CD install.
> My intention is to restore a clean system disk,
> reinitialise any other disks for data then build
> volumes and filesystems manually and restore to them.
> The new volumes will not have the same topology as the
> old ones.
> I will do this by the usual boot, format the second
> system disk & ufsrestore root & var to it, then mount
> it & edit all the relevant system files (devices etc).
> Here's the VM bit....
> I'll create an install-db, remove file from state.d
> ,comment out 2 lines in /etc/system and change vfstab,
> then install a boot block. I think this is all normal
> (correct me if I'm wrong).
Sounds okay to me.
> My question is, when I reboot on this new system disk
> what is my next step to re-enable a new, clean VM
> installation ? This is where I get stuck because I'm
> unclear what gets picked up from the old system.
Well, what doesn't get picked up is any information that used to be in a
private region (diskgroups, objects, etc.)
It's basically a new machine, but you've installed the packages and
licenses (although the licenses may not be useful on the new hardware).
> I assume I first run vxlicinst -k xxxx to insert a
> temporary key.
> Can I just re-run vxinstall and re-configure or will
> there be "legacy" files in the way ?
vxinstall will be just fine.
> Should I use some
> combination of vxconfigd/vxdctl disable/enable and
> then vxedit to remove old volume details, or is this
> now irrelevant ?
No. The old volume details (except maybe for info in volboot in some
rare cases) was all in the private region, and you didn't restore that
with your ufsrestore.
Darren Dunham ddunham at taos.com
Senior Technical Consultant TAOS http://www.taos.com/
Got some Dr Pepper? San Francisco, CA bay area
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