Striped LV failing on LV extend .

[baiju_3]

I have a striped LV with 22 disks in that and the number of stripes is also 22.

When I try to lvextend the lv with 5 new more disks which is already added in the VG it fails.

adedd77n:root [/root] lvdisplay /dev/vgeb_rdo2_tdb/lvol1
--- Logical volumes ---
LV Name /dev/vg04/lvol1
VG Name /dev/vg04
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule striped
LV Size (Mbytes) 1518528
Current LE 47454
Allocated PE 47454
Stripes 22
Stripe Size (Kbytes) 2048
Bad block NONE
Allocation strict
IO Timeout (Seconds) default


The error displayed by lvextend is
ogical volume "/dev/vg04/lvol1" could not be extended.
lvextend: Couldn't retrieve the list of the physical volumes
belonging to volume group "/dev/vg04".
Failure possibly caused by strict allocation policy

Now I like to know

1)How to fix this problem now .
2)Do we need to recreate a striped LV every time when we need to extend the LV?

Your reply will be highly appreciated.

Thanks,
BL.

[Alan Meyer_4]

see this recent thread

http://forums2.itrc.hp.com/service/forums/questionanswer.do?threadId=941616

[Duncan Edmonstone]

Well if you have a LV striped across 22 LUNs and all the LUNs are now full (all extents allocated), then you're gonna need *another* 22 LUNs to continue the stripes onto.

Assuming all 22 LUNs are full? a 'vgdisplay -v vg04' would probably be usefull here.

HTH

Duncan