On Thursday 19 January 2006 18:33, Brett I. Holcomb wrote: > I'm moving from SCSI to SATA and was wondering if anyone has any experience > with the speed of software RAID vs hardware RAID. I'm currently using > hardware RAID.
Yesterday an IBM ServeRAID decided to mark it's 3 SCSI disks as defunct when they are all in fact perfectly fine, giving me a 4am finish this morning after the major hassle of rebuilding, so I'm now heavily biased against hardware RAID, when I know software RAID is fully capable. Plus, mdadm can give you all the information you could ever need, and bugs get squashed quickly. http://bugzilla.kernel.org/show_bug.cgi?id=5181 I think the general consensus is that now CPUs are so cheap, and so powerful, that they can quite easily offset the extra horsepower needed, unless your workload is heavily CPU bound. None of the workloads on any of my servers are heavily CPU bound, so apart from this one server that came with the card (though an acquision of another company), all my RAID needs (on some 16 servers) are done in software. -- Mike Williams -- gentoo-user@gentoo.org mailing list
