[linux-lvm] How do I use free PE?

brem belguebli brem.belguebli at gmail.com
Fri Oct 23 15:38:39 UTC 2009


your underlying disk /dev/sdb2 cannot be part of more than one volume
group, it'll have to be under VolGroup00.

When you say I don't want to add it to VolGroup00, you may be
confusing some concepts.

You certainly don't want to add free space under / (which is a
filesystem) on top of a Logical Volume (LogVol0) which itself is built
on top of your VolGroup00, isn't it ?

If so, you can create a new Logical volume (let's say
logvolgeneralstorage, man lvcreate) on top of VolGroup00 which will be
mounted on /otherstroragethanslash.

Everything is in the man pages (lvcreate, lvs, lvdisplay, mke[234]fs, fstab)

2009/10/23 Rod Rook <rod.rook at gmail.com>:
> I've installed Fedora 10 on a 250GB SATA hard drive.
> I want to use the unused portion (free PE= 4378, about 140GB), but I don't
> know how I go about doing it.
> I don't want to add it to VolGroup00, but I want it made accessible as a
> general storage space.
>> [root at localhost Documents]# pvdisplay /dev/sdb2
>   --- Physical volume ---
>   PV Name               /dev/sdb2
>   VG Name               VolGroup00
>   PV Size               232.69 GB / not usable 4.58 MB
>   Allocatable           yes
>   PE Size (KByte)       32768
>   Total PE              7446
>   Free PE               4376
>   Allocated PE          3070
>>   PV UUID               DBf14Y-SLFe-cwZy-m1O7-3Jw9-Xhdf-3u42iX
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> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

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