On Thursday 04 January 2007 11:43, Paul wrote:
> After upgrading my HD, I am now wishing I left some space for doing
> snapshots. Is there a way to free up some space so I can get some free
> PE?
>
> Right now I have this:
> # vgdisplay
> --- Volume group ---
> VG Name VolGroup00
> System ID
> Format lvm2
> Metadata Areas 1
> Metadata Sequence No 7
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 2
> Open LV 2
> Max PV 0
> Cur PV 1
> Act PV 1
> VG Size 38.22 GB
> PE Size 32.00 MB
> Total PE 1223
> Alloc PE / Size 1223 / 38.22 GB
> Free PE / Size 0 / 0
> VG UUID 0mB18U-4VRo-1GMC-oKdf-ZndA-slFy-eOQtYD
>
> So, it won't let me do this:
> # lvcreate -L1G -s -n fullbakup /dev/VolGroup00/LogVol00
> Insufficient free extents (0) in volume group VolGroup00: 32 required
>
> Ext2online will not reduce size, so the man page says and I also tried it
> for the fun of it.
>
> lvresize won't work either.
ext2resize is what you are looking for, but it requires the mount to be
offline.
In your case, you want to ext2resize the ext2/3 partition to reduce it's usage
of the LV, then use lvresize to reduce the LV appropriately. That should
leave you the room in the Volume Group to create snapshop LVs.
--
- Kevan Benson
- A-1 Networks
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