ufsrestore & RAID

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Date: Wed, 6 Jul 2005 15:18:26 +0100
To: <sunmanagers@sunmanagers.org>

All,

I need to perform a full restore from a level 0 ufsdump backup onto an E220R,
the original dump was taken from exactly the same hardware setup as that which
it is to be restored to.

The difficulty is that the ufsdump backup is taken from a system configured
with the following:

Solaris 8 installed in a RAID 1 configuration managed by Solstice DiskSuite.

An A1000 is attached a managed using RM6.

What would be the best way to go about the restoration? I figured I'd take the
following steps:

1. Base install of Solaris 8 onto one of the E220R internal disks - lets say
disk 2.
2. Within this fresh install of Solaris run ufsrestore to restore all data
onto the other internal disk (disk 1).
3. Edit files on disk 1 that are configured for Solstice RAID 1 - i.e.
/etc/vfstab & /etc/system to reflect a single disk boot configuration.
4. Reboot booting off disk 1 this time (the restored backup).
5. Re-configure RAID 1 in Solstice mirroring the content of disk 1 back onto
disk 2 & creating new state database replicas.
6. Edit /etc/vfstab appropriately & reboot.
7. Reconfigure the A1000 with RM6 - are there likely to be many issues here
with detecting the configuration of the RAID controllers, as the new A1000 is
not configured identically to the A1000 attached to the original system the
backup was taken from. Would I be best off doing a fresh install of RM6?

Has anyone got any comments on the above stages, such as directories/files
that should not be restored in this manner? Or are aware of any problems this
is likely to cause me, as problems seem inevitable when restoring a RAID
configured OS image onto a single hard disk initially.

I will summarise.

Thanks in advance,

Conor

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