| To: | <linux-xfs@xxxxxxxxxxx> |
|---|---|
| Subject: | Re: Pulling disk out of the RAID 5 Array? |
| From: | "Steve Wolfe" <nw@xxxxxxxxx> |
| Date: | Tue, 18 Dec 2001 14:11:46 -0700 |
| References: | <Pine.A41.4.33.0112181249510.84718-100000@dante38.u.washington.edu> <1008709221.3599.2.camel@UberGeek> |
| Sender: | owner-linux-xfs@xxxxxxxxxxx |
> Secondly, the choice to make next is hardware or software raid. Hardware > raid is nice because the OS handles less, or none, of the burden of > rebuilding the array should a failure occurr. One more note, in a RAID 5 configuration, the hardware controller will also do the checksumming, removing that task from the CPU as well - and the checksumming can be considerable on heavy writes. Myself, I would not use software RAID 5 on a machine unless it either had very little CPU usage, or had multiple processors. Levels 1 and 0, though, are different matters. steve |
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