topic Re: LVM extend a lvol created whith -D y -s g in Operating System - HP-UX

LVM extend a lvol created whith -D y -s g

Aranzazu — Mon, 25 Aug 2003 15:35:27 GMT

Hello,
I have created a lvol in this way:
lvcreate -D y -s g -r n -n lvolfsindex01 /dev/vgslatr01
lvextend -L 8000 /dev/vgslatr01/lvolfsindex01

Now, I want to extend the lvol but this error apears:

lvextend: Not enough free physical extents available.
Logical volume "/dev/vgslatr01/lvolfsindex01" could not be extended

I have enough free space, look the output of vgdisplay command in the attachment.

How can i extend the lvol?
Thanks in advance.

Aranzazu Diez.

Re: LVM extend a lvol created whith -D y -s g

Denver Osborn — Mon, 25 Aug 2003 15:40:47 GMT

Given the error, you don't have enough free pe on all the PV's being used. How much are you attempting to extend it by?

-denver

Re: LVM extend a lvol created whith -D y -s g

Pete Randall — Mon, 25 Aug 2003 15:44:31 GMT

How much are you trying to extend it by? You only have 963 free PE(s) on the first two physical volumes and, with the Distributed allocation policy being set (-D y), that would be the maximum you could extend, I believe.

Pete

Re: LVM extend a lvol created whith -D y -s g

James R. Ferguson — Mon, 25 Aug 2003 16:14:12 GMT

Hi:

I think the question is how many physical volumes originally comprised your volume group when you 'lvcreate'd your distributed logical volume. You will need enough physical extents from at least that number of devices to satisfy your request. In your case, an 'lvextend' using '-L 8000' [8000 MB] with a physical extent size of 4MB would need 2000 PE. If this were spread among the six devices you seem to have, about 334 physical extents should be taken from each disk [if my math is correct].

Regards!

...JRF...

Re: LVM extend a lvol created whith -D y -s g

Aranzazu — Tue, 26 Aug 2003 08:34:36 GMT

I want to extend to 10240Mb (i have enough PE)

Re: LVM extend a lvol created whith -D y -s g

Claudio_17 — Tue, 26 Aug 2003 08:40:07 GMT

What I did on mine system was remove distributed option with lvchange -D n -s g /dev/vgxx/lvolxx ... then you can use all space you want

Re: LVM extend a lvol created whith -D y -s g

Aranzazu — Tue, 26 Aug 2003 09:42:40 GMT

OK, as soon as i can i will do it.
My system is in produccion mode and i need a time window to do this.

Thanks.

Re: LVM extend a lvol created whith -D y -s g

Claudio_17 — Tue, 26 Aug 2003 10:02:18 GMT

..of course space you go to add to /dev/vgslatr01/lvolfsindex01 will not more spreaded on 6 volumes .

Regards

Re: LVM extend a lvol created whith -D y -s g

Aranzazu — Thu, 18 Sep 2003 11:51:32 GMT

The problem was the /etc/lvmpvg file do not have de pvg defined.

Thanks for your help to all.