SUMMARY: RAID Question

From: Edward D. Silver <eds_at_lodging.com>
Date: Mon, 09 Apr 2001 18:12:54 -0400 (EDT)

The consensus was to NOT do this as a solid backup strategy. Too many
possible gotchas with it. We made a backup with the system in single
user mode instead. Much safer.

-Ed Silver
==================

I am doing a major upgrade to a server running an old version of 4.0B and
Oracle.

We are using an HSZ50 and a SW300 RAID shelf.

I've got root and usr on one mirror-set (two 9 Gig drives) and for our
data I've got it setup as four mirrored drives combined to make one
stripset (18 Gig drives).

It looks like this:

M1 = disk100 + disk630
M2 = disk210 + disk520
M3 = disk320 + disk410
M4 = disk420 + disk300

S1 = M1 + M2 + M3 + M4

My question is if I shutdown the box, remove the second disk from each
mirror and bring it back up do I have a perfect backup of the data itself
on my mirrors? So if anything screws up during the upgrades I could in
theory put back the drives I removed and be back in business, right?

Just making sure I have a good backout strategy.

Thanks

-Ed Silver
Received on Mon Apr 09 2001 - 22:14:07 NZST

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