topic Re: unable to extend vg as well as pe in Operating System - HP-UX

unable to extend vg as well as pe

seenivasan — Fri, 25 Feb 2011 16:47:02 GMT

team,
one of my server vg is full after i extened the lun another 20GB but i am unable to extend

please help me to reslove the issue.also attaching doc for more info.

Analysis:

After re-scanning the lun , we are able to see the underlying storage which is extended.

sys@a189053002$ bdf /usr/sap/trans
Filesystem kbytes used avail %used Mounted on
/dev/vg-emc34-33F5/sap-trans
73400320 73315147 79896 100% /usr/sap/trans

sys@a189053002$ diskinfo /dev/rdsk/c4t0d2
SCSI describe of /dev/rdsk/c4t0d2:
vendor: EMC
product id: SYMMETRIX
type: direct access
size: 94412160 Kbytes
bytes per sector: 512

Physical volume size is not getting changed after we do " vgmodify "

sys@a189053002$ pvdisplay /dev/disk/disk11
--- Physical volumes ---
PV Name /dev/disk/disk11
VG Name /dev/vg-emc34-33F5
PV Status available
Allocatable yes
VGDA 2
Cur LV 1
PE Size (Mbytes) 1
Total PE 71709
Free PE 29
Current pre-allocated PE 0
Allocated PE 71680
Stale PE 0
IO Timeout (Seconds) default
Autoswitch On
Proactive Polling On

Re: unable to extend vg as well as pe

nijokj — Fri, 25 Feb 2011 17:44:30 GMT

complete procedure of vgmodify
http://www.hpuxtips.es/?q=node/179

Re: unable to extend vg as well as pe

seenivasan — Fri, 25 Feb 2011 17:46:36 GMT

thanks for ur rply,,but the think is PE size is 1MB

Re: unable to extend vg as well as pe

Jose Mosquera — Fri, 25 Feb 2011 20:33:46 GMT

Hi,

If you're over 11i (11i v2 with the PHCO_35524 patch), you could resize disk online with vgmodify. Please check this:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01920387/c01920387.pdf

Rgds.

Re: unable to extend vg as well as pe

INH — Sat, 26 Feb 2011 03:02:18 GMT

Volume group "/dev/rdisk/disk11" does not exist in the "/etc/lvmtab" file.
Volume group "/dev/rdisk/disk11" does not exist in the "/etc/lvmtab_p" file.

Cross check and verify the disk ( DSF) existance.

&

Check for max PE per PV with vgdisplay command, this may give better idea

Regards,
INH

Re: unable to extend vg as well as pe

P Arumugavel — Sat, 26 Feb 2011 18:19:33 GMT

hi seeni,

No way to extend the pe_size, even in vgmodify.

Please check the max_pe in the VG has been set and try for possibility to change the same using vgmodify.

Refer the docs provided by Jose.

Rgds...