Clubbing of LVs

[YOGI_3]

Hi all,
I have 500gb free space on one vg, say vg1.
I have 900gb free space on other vg, say vg2.
can we make club the free space as a single lv of 1.4tb.
If yes.....please let me know the steps for the steps.

Thanks,
Yogesh

[Stephen Keane]

A logical volume can only exist in a single volume group. You cannot take space from two VGs and put it in the same LV.

[Devender Khatana]

Hi,

It can not be created as it is. But there are some other workarounds possible if your situations permits them. You can remove one or more free physical volumes from one VG and add it to other then it would be possible. Just post the output of vgdisplay -v /dev/vgname of both the VGs.

HTH,
Devender

[Robert-Jan Goossens]

Hi Yogesh,

No, you can not combine free spaces from two volume groups into one logical volume.

You could create two logical volumes into two mountpoints.

/app 500mb mountpoint lvol1 vg1
/app/data 900mb mountpoint lvol1 vg2

Regards,
Robert-Jan

[Henk Geurts]

hi YOGI.

no way possible....
a LV is always part of 1 VG....
you 'll just have to create 2 LV's and 2 fs-en.
regards.

[Devender Khatana]

Hi,

Another idea would be to create a symbolic link to files which points to other LV.

HTH,
Devender

[YOGI_3]

hi deven...
thanks a lot for ur reply of symbolic linl..
herewith iam attached the o/p of vgdisplay of the vgs.
pl find the same...

yogesh

[Devender Khatana]

Hi Yogesh,

Your current config does not allow reconfiguration of adding and removing PV's across VGs because you have only one PV in each VG. This is why either symbolic link or mounting two file systems(Two mount points) within one directory as described earlier will be feasible.

Choice is yours.

HTH,
Devender

[Colin Gomes]

hey yogi,
Since u have 1 PV in each VG , it is not possible to span a LV across 2 VG's . Similarly 2 VG's cannot span across a single disk.
try clubbing the disk of vg2 in vg1 or vice-versa.
thanks ,
bye