From: joe macdonald (joe_macdonald25@yahoo.com)
Date: Wed Oct 29 2003 - 09:32:37 EST
Hi all,
We're planning on purchasing on a V880 and Volume
Manager. As a test box, we might use a 480 or a 250
or something similiar. From what I've read, it seems
easier to use SDS to mirror my root disk, and put the
other disks (6 in all in the 880) under control of
Volume Manager.
I have a few questions with this setup:
1) what's everyone's opinion on using SDS for the boot
disk? Is it REALLY easier to use SDS to recover than
using Volume Manager?
2) How much added complexity is there in using two
volume managers?
3) Since the 880's disks are 73GB, would I really have
to dedicate 2x73GB to the OS/paging
space/applications? My thinking is that I'd have to
use (1) 73GB disk to install my OS/paging on and then
use another 73GB as the mirror? This seems like huge
overkill.
4) Assuming I'd have to use (2) 73GB for the root
mirror, I'd have 4 disks left over for data under
control of Volume Manager. What would be the best
process of restoring this data in a worst case
scenario? Our data would be backed up nightly via
TSM, but the volume groups, etc. would be lost.
What's the best practise in recreating that?
5) How would I restore disks under control of SDS?
Simply using ufsdump/ufsrestore?
6) If I wanted to test the DR plan on a smaller box,
what do I need to keep in mind? I'd obviously have to
buy another license for volume manager?
7) Is there a whole other approach I should be looking
at?
I've no experience with either SDS or Volume Manager.
Any pointers, books, web sites, etc. you can point me
to would be appreciated. Any information you can
share about your DR plan would also be appreciated.
Thanks for your time,
Will summarize, I assume others would be interested in
the above.
Joe
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