Re: [gentoo-user] Software RAID Advice Needed

[Neil Bothwick <neil@digimed.co.uk>]

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On Thu, 15 Dec 2005 18:21:20 -0700, Richard Fish wrote:

> Also, consider that you can mix-and-match RAID levels with different
> partitions.  You can create a 4-partition RAID0 array for swap, a
> 4-partition RAID0+1 array for filesystems that experience a lot of
> writes (/var, /tmp, and maybe /usr/src, for example), and a
> 4-partition RAID5 setup for /root, /home, et al.  If a disk fails,
> your system would likely crash (due to the swap device), but would
> reboot in a degraded mode (no swap, slow performance, etc).

You could avoid that by not using RAID for swap. Instead, use four
separate swap partitions, one on each drive. As long as they all have the
same priority, the kernel will share swap duties between them equally.
There's no real benefit to using RAID for swap, unless you are limited on
RAM and use swap a lot, when RAID0 may help.


-- 
Neil Bothwick

Excuse me for butting in, but I'm interrupt-driven.

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