Hi I have a machine with 3 sata drives. Currently i have raid 1 / raid 1 /boot raid 5 - pv I have been looking at why not to raid 5 and I would go to raid 10 but I can only put 3 drives in my machine. Currently have 3x250G and am looking at getting 3x500G, if I go to mdadm raid1, then I have 500G safe 500G unsafe which is not really what I want. I am going to stick with the /, /boot raid1 sets. But I was thinking about setting up the rest of the space as pv's and them using lvm's dm-mirror to manage the mirroring of space ? then if I don't want any redundancy on my space I can lvcreate without dm-mirror. Any one doing this, I haven't had much experience with dm-mirror. my thoughts were 1 big vgroup and lots of lv's some with mirrors and some without ? Alex
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