At Fri, 25 Feb 2011 15:15:34 +0200 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> I'm trying to create a 500GB lv volume on a 500GB physical volume, but can't:
>
> [root@francois-pc ~]# pvscan
> PV /dev/sdd VG freenas lvm2 [500.00 GB / 500.00 GB free]
> PV /dev/sdc VG thecus lvm2 [1010.00 GB /
> 910.00 GB free]
> PV /dev/mapper/ddf1_RAIDp2 VG VolGroup00 lvm2 [931.25 GB / 0 free]
> Total: 3 [2.38 TB] / in use: 3 [2.38 TB] / in no VG: 0 [0 ]
> [root@francois-pc ~]# lvcreate -L 500gig -n 500G freenas
> Insufficient free extents (127999) in volume group freenas: 128000 required
>
> Even dropping the size a bit, I get this:
>
> [root@francois-pc ~]# lvcreate -L 500gig -n 450G freenas
> Insufficient free extents (127999) in volume group freenas: 128000 required
'-n' is the *name*, -L is the size. You are still asking for a 500G
sized volume.
Try this:
lvcreate -l 100%FREE -n volume freenas
This will create a logical volume (named volume) that uses all of the
*available* free space, which will be *slightly* less than the 500B of
the VG.
>
>
>
> How do I actually create a 500GB volume?
You can't. There is one extent's worth of space used for LVM meta data.
>
>
>
>
--
Robert Heller -- 978-544-6933 / heller@xxxxxxxxxxxx
Deepwoods Software -- http://www.deepsoft.com/
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