[linux-lvm] lvcreate fails
Marcus Haarmann
marcus.haarmann at midoco.de
Mon Jan 9 21:08:59 UTC 2012
Hi experts,
I have configured an external disk array on Ubuntu (amd64, 2.6.32
kernel) with lvm2 (2.02.54)
The setup is as follows:
--- Physical volume ---
PV Name /dev/fc_keep1a_1 (this is a symbolic link to a
fibre channel device)
VG Name vg_uni
PV Size 555,23 GiB / not usable 2,20 MiB
Allocatable NO
PE Size 4,00 MiB
Total PE 142139
Free PE 65339
Allocated PE 76800
PV UUID SmOTSP-wPEd-ZruJ-XP8n-WpoL-anDN-ccG7dM
vgdisplay vg_uni
--- Volume group ---
VG Name vg_uni
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 20
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 4
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 555,23 GiB
PE Size 4,00 MiB
Total PE 142139
Alloc PE / Size 76800 / 300,00 GiB
Free PE / Size 65339 / 255,23 GiB
VG UUID 0VNl5W-W22T-HEow-LvNx-gopm-nS0z-FpjZvi
This is for a database working with raw devices (without filesystem), I
allocated multiple partitions:
100 GB root
50 GB blob1
50 GB blob2
100 GB data1
When I try to allocate another area with 10 GB for a temporary space, I
get an error:
lvcreate -L 10G -n dbs_uni_tmp vg_uni
Insufficient free space: 2560 extents needed, but only 0 available
I did -vvv so the layout is printed (note there have been other lvm
partitions which have been dropped):
Using cached label for /dev/fc_keep1a_1
Using cached label for /dev/fc_keep1a_1
Read vg_unister metadata (20) from /dev/fc_keep1a_1 at 47104
size 1723
/dev/fc_keep1a_1 0: 0 25600: dbs_uni_root(0:0)
/dev/fc_keep1a_1 1: 25600 25600: dbs_uni_data1(0:0)
/dev/fc_keep1a_1 2: 51200 64000: NULL(0:0)
/dev/fc_keep1a_1 3: 115200 12800: dbs_uni_blob1(0:0)
/dev/fc_keep1a_1 4: 128000 12800: dbs_uni_blob2(0:0)
/dev/fc_keep1a_1 5: 140800 1339: NULL(0:0)
Archiving volume group "vg_unister" metadata (seqno 20).
Creating logical volume dbs_unister_tmp
Insufficient free space: 1338 extents needed, but only 0 available
Unlocking /var/lock/lvm/V_vg_unister
_undo_flock /var/lock/lvm/V_vg_unister
Closed /dev/fc_keep1a_1
What can I do to be able to use the space ?
Thank you all for your thoughts !
Marcus Haarmann
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