topic Re: Cannot do lvextend -m 1 on a striped logical volume :-( in Operating System - HP-UX

Cannot do lvextend -m 1 on a striped logical volume :-(

Romaric Guilloud — Mon, 17 Oct 2005 07:43:41 GMT

Hello out there, I'm trying to extend a lvol onto a mirroring pv but as the lvol's policy is "striped", it is refused by HP-UX:

miller2 >lvextend -m 1 /dev/n1s4vg01/lvol1 /dev/dsk/c29t5d4
Striped mirrors are not supported. To enable mirroring options (-m, -M, -c),
do not specify the striping options (-i, -I) when creating logical volumes.
miller2 >
miller2 >lvchange -d p /dev/n1s4vg01/lvol1
Logical volume "/dev/n1s4vg01/lvol1" has been successfully changed.
Volume Group configuration for /dev/n1s4vg01 has been saved in /etc/lvmconf/n1s4vg01.conf
miller2 >echo $?
0
miller2 >
miller2 >
miller2 >lvextend -m 1 /dev/n1s4vg01/lvol1 /dev/dsk/c29t5d4
Striped mirrors are not supported. To enable mirroring options (-m, -M, -c),
do not specify the striping options (-i, -I) when creating logical volumes.
miller2 >
miller2 >

Does anyone know how to sort this out without having to recreate the lvol with standard allocation policy?

Thanks in advance for your help.
Rgds,

Romaric.

Re: Cannot do lvextend -m 1 on a striped logical volume :-(

Mark Nieuwboer — Mon, 17 Oct 2005 07:48:16 GMT

Hi Romaric,

Sorry to say but if you don't have veritas volume manger you can't mirror stripped logical volumes.
The only way to work with mirrors and a sort of striping is with extended based mirror striping.
see the man pages lvcreate for this.
but still you have to create the whole logical volume.

grtz. mark

Re: Cannot do lvextend -m 1 on a striped logical volume :-(

Stuart Abramson — Mon, 17 Oct 2005 08:54:17 GMT

Mark is right. Striped LVOLs just can't be mirrored. that's it, sorry.

They can't be extended either, which is another problem.

Re: Cannot do lvextend -m 1 on a striped logical volume :-(

Romaric Guilloud — Mon, 17 Oct 2005 09:31:21 GMT

Thank you guys.
Rgds,