From: Keld Simonsen [mailto:keld@keldix.com]
Sent: Saturday, June 05, 2010 8:04 PM
To: Leslie Rhorer
Cc: 'Mark Knecht'; 'Carlos Mennens'; 'Mdadm'
Subject: Re: RAID Configuration For New Home Server

On Sat, Jun 05, 2010 at 06:56:31PM -0500, Leslie Rhorer wrote:

quoted

quoted

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       It's certainly workable.  You might consider something other

than

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quoted

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RAID1 for your swap partition.

Looks reasonable. Some comments:

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2) I don't use RAID for swap. I let the kernel do that internally. I
almost never swap out on my home server so trying to protect that with
RAID for the few moments I might use it seems like overkill to me.

	I halfway agree.  My servers almost never use any significant amount
of swap, and even my workstations only use it very occasionally.  There

have

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been instances, however, where the swap has grown to be quite large.

With

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that in mind, and given the very small amount he has allocated for swap,

one

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might suggest a RAID0 array of the areas to be used for swap, or maybe

an

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LVM volume.

If you use some mirrored RAID for swap, your system will continue to run,
if
one of your disks go bad. Then you can replace the faulty disk at a later,
and possibly more convenient time.

If you do not have RAID, your system will most likely go down, if the swap
partiion
is damaged.

	True.  A 4 disk RAID1 array is overkill to the point of absurdity,
though.  Perhaps a RAID10 or RAID4 array would be a good compromise.

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