I'm new to LVM so please be gentle with your responses. I just setup an openSUSE 11 server with a DAS attached via SAS. I've been "toying" with LVM as I want to be able to easily add storage space when necessary. This server/DAS will be used for disk-to-disk backups so I'm a little parnoid about in needing to ensure that the data will always available for restores. The server has hardware mirroingfor the OS with a hot standby HD and the DAS is configured RAID5 with a hot standby. My question is, is there a way to create two LV's in which one LV is a mirror of the other. My worries are if LVM "crashes" my data LV, I'd like to be able to recover from a mirror copy. I've read about LV Snapshot but I don't think that's the answer as my data LV will continuously change/grow.
Any and all thoughts/suggestions are greatly appreciated!