Linux LVM and MDADM Merging MD RAID Handling Code
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This appears to be really new, still a technology preview in CentOS 6.2 apparently, but very interesting. Traditionally LVM RAID was very weak and not super useful and we always recommended using MDADM for software RAID and LVM for logical voluming instead of using LVM for software RAID itself. Not that it wasn't safe, just that it wasn't as good. "Bill2000" and I have been discussing this over "there" and I was unaware of this new change in LVM. Interesting stuff. As it is so new and as I almost exclusively use hardware RAID (and only deploy Linux virtualized so the storage is abstracted) I have not come across this at all but here is a discussion on it:
http://serverfault.com/questions/379440/whats-the-difference-between-mirror-and-raid1-in-lvm
From what I can tell, LVM is leveraging the MD system but avoiding the MDADM management libraries. Anyone have experience with this?
