[Tfug] Software RAID suggestions

[Tom Rini]

On Thu, May 14, 2009 at 10:57:36PM -0700, John Gruenenfelder wrote:
> One more question about the machines I'm building...
> 
> This concerns software RAID.  For a machine that does not need to maximize
> drive throughput (i.e. it's primary purpose is *not* a file server), is there
> any reason *not* to use software RAID in the Linux kernel?  I've been using it
> for years at home and it's always been great.  And it seems to nicely avoid
> the problem of incompatible RAID formats one gets from RAID hardware.
> 
> I ask this because this new machine will likely have two 1.5TB drives running
> in a RAID-1 mirroring configuration.  Most all new motherboards have some sort
> of RAID hardware built into them, but I had planned on using the kernel's RAID
> facility instead.

I assume Harry will chime in for the most part, but the "RAID hardware"
you find on most PCs isn't really.  It's what Linux calls "fakeraid",
and is roughly software RAID that the BIOS recognizes, with no real
hardware assist.

-- 
Tom Rini