RAID1, a failed disk and performance
Christian Hiris
4711 at chello.at
Thu Jan 27 13:57:17 PST 2005
On Thursday 27 January 2005 21:14:21, Chad Morland wrote:
> What happens in terms of performance when a drive in a RAID1 system
> fails? Will disk access be slower because it attempts to read/write to
> a failed disk or will performance be faster because it doesn't need to
> do half the work it usually does? I couldn't really find any online
> resources that deal with performance levels when there are failed
> drives present in a RAID array.
If you are interested in gmirror software-raid performance, I put some bonnie
benchmark data online. I run the benchmark on a cheap none-raid
Promise-Ultra-133-TX2 aka PDC20269, which costs about 25 Euros:
http://members.chello.at/freebsd-5.3/bonnie-gmirror/summary
http://members.chello.at/freebsd-5.3/bonnie-gmirror/detail
Cheers,
ch
--
Christian Hiris <4711 at chello.at> | OpenPGP KeyID 0x3BCA53BE
OpenPGP-Key at hkp://wwwkeys.eu.pgp.net and http://pgp.mit.edu
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-questions/attachments/20050127/f40dd5eb/attachment.bin
More information about the freebsd-questions
mailing list