David Dyer-Bennet wrote:
> 
> Steve Fulton <[EMAIL PROTECTED]> writes on 19 January 2001 at 16:59:33 -0500
>  > I've searched the archives extensively, and I've learned quite a lot, but
>  > I'd like advice on this question:
>  >
>  > Assuming RAID 1+0 is not an option (due to the expense), what level of
>  > RAID is best for storing /Maildir's on a file server (that will be
>  > accessible to the SMTP & POP servers via NFS).  Redudancy is the big
>  > issue, otherwise I'd go for RAID 1.  The suits are pushing for RAID 5
>  > because they don't know better - and won't listen.
> 
> Um;  0 is striping, 1 is mirroring, right?  I don't do this enough to
> be confident of the numbers.  So if mirroring is too expensive, the
> only option available for consideration is RAID 5, parity.  It has
> less redundancy than mirroring, but good reliability (survives loss of
> one disk).

You are correct. Zero (0) is striping, one (1) is mirroring and five (5)
is parity. The OPs wording is confusing, or he's got 0 and 1 reversed
in his head somehow (or a complete misunderstanding of RAID levels)....

For the curious (just the first hit I found from Google ;)  ):

 http://www.express-inc.com/docs/diskarry/raid.htm

GW

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