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Re: NetBSD RAID5 options (PCI-e controller?)

On Tue, Jul 14, 2009 at 01:42:10PM -0400, Rafal Boni wrote:
> > If long re-builds are a problem in your case you probably want a
> > hardware RAID controller. Alternatively you could wait for the
> > result of RAIDframe GSoC project(*).
> I wonder what the performance effects of the rebuild are as well; even
> with a RF mirror, machine I/O performance suffers pretty badly.

I don't know about RAID 5, but I've observed the same overall system
performance problem during a RAID 1 re-build. My guess is that it is
worse for RAID 5.

        Kind regards

Matthias Scheler                        

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