topic Lvm Error in Operating System - HP-UX

Lvm Error

raiden — Thu, 25 Mar 2010 06:15:25 GMT

I have a LV which has a striping over 7 disks.
. It is full now. Its VG also has 7 disks.

Now if I extend the VG with 2 disks and try to extend the LV what is the LVM error i WIll get.

Re: Lvm Error

Michal Kapalka (mikap) — Thu, 25 Mar 2010 06:51:39 GMT

hi,

if you use striping, for example with 7 disk ( across ) and them you like to add aditional disk you should recreate the whole LVOL.

backup data delete lvol and them create striped LVOL with for example 9 disk, and them create FS and restore data.

mikap

Re: Lvm Error

Kapil Jha — Thu, 25 Mar 2010 08:18:06 GMT

If you have LV striped over 7 disk you would need another 7 disk if you want to increase it.

and if u just want to add one disk simply take backup and recreated the LV striped over 8 disks and restore.

BR,
Kapil+

Re: Lvm Error

Patrick Wallek — Thu, 25 Mar 2010 12:13:04 GMT

>>Now if I extend the VG with 2 disks and try
>>to extend the LV what is the LVM error i
>>WIll get.

The error will probably say something about 'not enough free extents' because you don't have enough disks for the stripe.

Re: Lvm Error

Benoy Daniel — Fri, 26 Mar 2010 03:00:18 GMT

If you are using extent base stripping you can extend the LV to another 2 luns without any recreation of LV.

Re: Lvm Error

raiden — Fri, 26 Mar 2010 03:27:24 GMT

Thanks Patrick,

Guys I just wanted the Error so that i can prepare a report for management.

Benoy>>>>Your answering is confusing. How can I extend the Striped LV on another 2 LUNS. I am sure its not possible.

Re: Lvm Error

Kapil Jha — Fri, 26 Mar 2010 04:03:30 GMT

I am 95% sure even if you say error would be

"I don think I can increase cause you do not have enough disk/space in VG"

They would not mind, at my side they just want a line to be filled in, let it be anything.....

No Points for this please (:
BR,
Kapil+

Re: Lvm Error

Anshumali — Fri, 26 Mar 2010 04:10:31 GMT

An Old thread but as you are just after the error that too for purely documentation purpose, this might work:
http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1269580007532+28353475&threadId=4370

Re: Lvm Error

raiden — Fri, 26 Mar 2010 05:21:42 GMT

Thanks Anshumali. That was useful