[Veritas-vx] DR test with VxVM

[Darren Dunham]

> 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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