On Tue, Jun 26, 2012 at 03:10:30AM +0800, Emmanuel Noobadmin wrote:
On 6/25/12, Warren Young warren@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LVM has a mirroring option but from, possibly outdated, reading a couple of years back, it is not as smart as md raid when it comes to using both disks to speed up reading and will only read from one disk.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.