I would definitely treat it as a single volume set of 4 volumes.

This would offer you more useable disk space, since there is one disk pool
instead of two (Actually two instead of three, since you need the system
volume set).

The mirroring offers adequate protection against disk failure. It's not
really necessary to rely on this benefit afforded by volume sets.

Of course, I am assuming that you are using software mirroring here (you
did mention mirror/ix). If you are using hardware mirroring (nike model 10
or 20, or autoraid 12h, or xp series), I would NOT utilize  volume sets at
all (apart from MPEXL_SYSTEM_VOLUME_SET).



At 09:25 PM 2001-08-23, Duane Percox wrote:
>Hello Mirror/ix officianados,
>
>For a development system (not production):
>
>If you had 4 18gb drives which will be mirrored would
>you treat this as 1 volume set of 4 or would you break it
>into 2 separate volumes of 2 drives each.
>
>Ok - I'm sure there are other questions to ask, but that's
>why I'm posting the message :-).
>
>Duane Percox    wk: 650.372.0200x608  fax: 650.372.3386
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>www.qss.com
>qwebs.qss.com
>
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