I don't think the open source version of LVM supports mirroring.
I've never setup LVM in this way. However, one could assume you could "layer" several mechanism to get what you're looking for.
For example, you could create your base partitions, create your RAID devices, and then start the LVM setup on top of those. So instead of defining /dev/hd* as part of the volume group(s) you'd define /dev/md* (the RAID devices).
I haven't tried this setup but have given it some thought as I'm looking at something similar with RAID5. If you try it, post the results as inquiring minds want to know ;-).
Tom
Guy Van Sanden wrote:
Hi
I'm wondering if Logical Volume Manager can handle a setup I am
considering.
I have a system with two 40 GB IDE drives. hda /
/boot
<swap>
/tmp
/data (includes home)
/usr
The second disk (hdb) should contain the same partitions, but mirrored.
The ultimate goal would be that if either hda or hdb failed, the system would keep running until I could replace a disk.
Is any of this possible with LVM? Is it stable? Could the system still boot if one disk failed (e.g. hdb)?
Can I disable the mirrors temporary when performing an upgrade? (to get the chance to turn it back). I've seen this stuff done with Veritas, and I'd be cool to have it on a Free Linux box.
Thanks
Guy
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