On Wed, 2010-09-01 at 18:50 -0700, Linda Walsh wrote:
I am running low on space in my /backups partition. I looked at the partitions and volumes to see what might be done (besides deleting old backups), and noticed: pvs: PV VG Fmt Attr PSize PFree /dev/sdb1 Backups lvm2 a- 10.91T 3.15G --- So I thought 'cool', I didn't make it the full size, and I have some left...ok...(I didn't remember what I'd done, its been a while). Run lvresize: lvresize /dev/Backups/Backups -L +3.15G Rounding up size to full physical extent 3.15 GB Extending logical volume Backups to 10.91 TB Logical volume Backups successfully resized Um...HELLO? Extending to 10.91? But it was at 10.91!
Your reporting is a bit confusing; what was the original size of the LV?
pvs: PV VG Fmt Attr PSize PFree /dev/sdb1 Backups lvm2 a- 10.91T 0 Well that was unimpressive.
I don't understand why you are looking at PVs, it is the VG that matters. How much free space does the VG report?
parted /dev/sdb p(rint) Disk /dev/sdb: 12.0TB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 12.0TB 12.0TB backup lvm Ok, now I'm really confused. 10.91T? 14.06T? (Obviously this was optimistic reporting if the partition is only 12TB!)
What does the VG report?
So why does parted show a 12TB disk while lvm shows only a 10.91T disk and why did lvm show 3.15G free when it wasn't really there?
Different counting mechanisms (base-10 vs. base-2) and a little bit of overhead.
How do I get my 1.09T back from lvm? That seems like awfully high for an overhead number for lvm. I'd expect more like "0.09T".
You can't, it isn't there. When using LVM *only* pay attention to the stats reported by vgdisplay (for the VG). Ignore everything else, it is just confusing. -- Adam Tauno Williams <awilliam@whitemice.org> LPIC-1, Novell CLA <http://www.whitemiceconsulting.com> OpenGroupware, Cyrus IMAPd, Postfix, OpenLDAP, Samba -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org