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Re: [linux-lvm] which files, which physical volumes?



Steve Wray wrote:

Well then its bogus; the physical volume I am trying to pvmove has a capacity of around 9G whereas the volume group of which it is a part has a nice 42G free.

So how does that work out to not enough extents?


Does the Volume Group in question have 42GB of unallocated extents, or 42GB free on the allocated Logical Volumes?

If you had VG main with 60GB total containing LVs lv1 and lv2 each 20GB then you'd have 2GB unallocated on the VG.

If you want more unallocated space on e.g. /dev/hdc1 (a member of VG main) to move part of lv1 onto (from /dev/hda1), you'd have to do something like:

resize_filesystem /dev/main/lv2 (down to smaller size)
lvresize -L (new size) /dev/main/lv2 # to resize the logical volume using the space
pvmove -n /dev/main/lv2 /dev/hdc1 # to move as much as possible of lv2 off this PV
pvmove -n /dev/main/lv1 /dev/hda1 /dev/hdc1


Does that make sense to you?
--
Michael T. Babcock

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