disk in lvm not reporting correct size

[Andrew medhurst1]

guys i have a volume group that is reporting 100gb when the lun assigned is 250gb, the problem i think is the PE size is to small to reconize the disk size so is there a way of increasing it online.
i unfortunatly think i know the answer but hoping someone has got a clever solution to avoid rebiuld of disk.
regards
andrew

[Duncan Edmonstone]

what OS version? for 11.23 and 11.31 you may be able to use vgmodify to fix this (dedpnding on what the max PE per PV is already set to)

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01920387/c01920387.pdf (BSC link updated by admin)

for 11.11 there is an _unsupported_ version of vgmodify available from the response centre, but you use it at your own risk.

HTH

Duncan

[Andrew medhurst1]

duncan
its 11:23 will this still work. and is it just a case of umounting vg and resizing then remounting, surely that will affect data installed, as that is already on 4mb extents.
regards

[Duncan Edmonstone · Accepted solution]

Andrew - read the WP - I think it should work for you... your current max PE per PV is obviously set to something below 65536 (as that would allow 256GB LUNs based on 4MB PEs) - soi vgmodify should be able to change that.

Note of course you need patch PHCO_35524 and its dependencies to acheive this on 11.23.

HTH

Duncan

[Andrew medhurst1]

duncan
thanks have already read the WP, unfortunatly i need to offline the vg to complete and as there is a netbackup DB on there i will have to schedule thro change, thanks for the advice