Software vs Hardware RAID

[dsr-mzpnVDyJpH4k7aNtvndDlA at public.gmane.org (Dan Ritter)]

On Fri, May 25, 2007 at 12:47:48PM -0400, Rusty Shackleford wrote:
> Does some know some real pros and cons of software vs hardware raid?  One of
> the companies I work with is deploying multiple servers but 2 servers were
> deployed without raid at all and they are going to software raid it.  I have
> never worked with software raid as I was always told it was unreliable.

Software RAID: cheap, fast, reliable. No hot swaps, but you can
put in a spare disk.

Hardware RAID: two subsets: real HW RAID, and fake HW RAID.

Fake HW RAID: cheap, slow, unreliable. No hot swaps. Probably no
spare disks.

Real HW RAID: expensive, fast, reliable. Hot swaps! And spare
disks, too.


Does that help?

-dsr-

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