[CentOS] Duplicate PV on HW RAID?

Mon Jul 28 21:30:24 UTC 2008
D Steward <dsteward at internode.on.net>

> Re-install with software RAID1.
> 
> RAID1 is cheap as far as CPU/IO time is concerned so it works
> well software wise, and you get email alerts if it gets
> degraded!

I agree with you re. CPU load, but what about hot-swap and auto
rebuilding of arrays?
Does software RAID give you this?