I’m setting up a computer with CentOS 6.4 and a mirrored software RAID. I would like it to be encrypted so I was wondering what the best configuration is. The only info I could find is http://lists.CentOS.org/pipermail/CentOS-docs/2008-October/001912.html but it appears to be a bit old and the info on the wiki (
http://wiki.CentOS.org/HowTos/EncryptTmpSwapHome ) doesn’t seem to address RAIDs.
My main question is will it be better to encrypt the RAID itself or the two partitions used by the RAID? Any other things I should be aware of?