Messages in this thread | | | Date | Mon, 18 Jun 2007 11:20:02 -0600 | From | Brendan Conoboy <> | Subject | Re: limits on raid |
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david@lang.hm wrote: > in my case it takes 2+ days to resync the array before I can do any > performance testing with it. for some reason it's only doing the rebuild > at ~5M/sec (even though I've increased the min and max rebuild speeds > and a dd to the array seems to be ~44M/sec, even during the rebuild)
With performance like that, it sounds like you're saturating a bus somewhere along the line. If you're using scsi, for instance, it's very easy for a long chain of drives to overwhelm a channel. You might also want to consider some other RAID layouts like 1+0 or 5+0 depending upon your space vs. reliability needs.
-- Brendan Conoboy / Red Hat, Inc. / blc@redhat.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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