[CentOS] RAID?

On Tue, Jun 26, 2012 at 03:10:30AM +0800, Emmanuel Noobadmin wrote:
> On 6/25/12, Warren Young <warren at etr-usa.com> wrote:
> > Then there's the LVM option, but I can't immediately come up with a
> > one-liner that tells you whether a given LVM disk set is equivalent to
> > software RAID.
> 
> LVM has a mirroring option but from, possibly outdated, reading a
> couple of years back, it is not as smart as md raid when it comes to
> using both disks to speed up reading and will only read from one disk.


Also, nobody uses it.  If you hit a problem, you are completely on your
own.   I thought it would be more simple to have only one abstraction
layer;  Nope.     Use md and lvm on top of the md.