On 10/12/11 9:36 AM, Les Mikesell wrote:
> LVM seems unnecessarily complicated unless mdraid is broken on large
> devices. And I already have data on the md partition (moving stuff
> from a pair of 1.5TB drives to 3TB). If md isn't going to work, can I
> put LVM on a single drive, add the data, then add the mirror (reusing
> the one that now has the md partition and currently holding the data)?
> The old disks are still around but not in the machine now.
I believe (from memory) you'd add the 2nd drive to the volume group, then
vgextend vgname /dev/(newdisk)
lvconvert -m 1 logicalvolumename
one nice thing about lvm mirroring is you can do it with a mix of drive
sizes without having to worry about geometry or layout, it will simply
ensure that each block exists on two devices....
--
john r pierce N 37, W 122
santa cruz ca mid-left coast
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