[linux-lvm] Cannot create a logical volume

Milan Broz mbroz at redhat.com
Fri Sep 12 18:45:13 UTC 2008

Jaroslav Stava wrote:
>> [root at localhost ~]# pvscan
>>   PV /dev/md3   VG gt_vg   lvm2 [909.91 GB / 909.91 GB free]
>>   Total: 1 [909.91 GB] / in use: 1 [909.91 GB] / in no VG: 0 [0   ]

>> [root at localhost ~]# lvcreate -L 5G -n data gt_vg
>>   Not enough PVs with free space available for parallel allocation.
>>   Consider --alloc anywhere if desperate.
>> Any feedback would be very much appreciated,
>> Thanks for your time,
> AFAIK this message should be seen only when trying to create a mirrored
> or striped lv.
There is another possible problem:

Is the PV allowed to allocate any extents?

Please check "pvdisplay /dev/md3" - there should be
  Allocatable           yes

If not, allow allocation on the PV: "pvchange -x y /dev/md3"
and try lvcreate again.

That error message is misleading it this situation...

mbroz at redhat.com

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