topic Re: vg prob in Operating System - HP-UX

vg prob

RAKUNTA — Wed, 22 Sep 2010 09:30:37 GMT

hi ,
i am trying to create vg in hp-ux 11i v3 system ,but it is giving below message..
can any one please reply me with best solution,,,,,

root@-domain name#vgdisplay -v vg01
vgdisplay: Volume group "/dev/vg01" does not exist in the "/etc/lvmtab" file.
best regards
rakunta
vgdisplay: Volume group "/dev/vg01" does not exist in the "/etc/lvmtab_p" file.
vgdisplay: Cannot display volume group "vg01".

Re: vg prob

Torsten. — Wed, 22 Sep 2010 09:45:33 GMT

You first need to create it (man vgcreate), then you can display it.

Re: vg prob

RAKUNTA — Wed, 22 Sep 2010 10:15:41 GMT

hi trsten

i created all like
dir,mknod ,vg

but why it is getting

Re: vg prob

Bill Hassell — Wed, 22 Sep 2010 10:17:34 GMT

You must activate the new VG:

vgchange -a y vg01

Re: vg prob

Torsten. — Wed, 22 Sep 2010 10:18:43 GMT

Please post the commands you used to create the VG.

Re: vg prob

James R. Ferguson — Wed, 22 Sep 2010 10:21:06 GMT

Hi:

> i created all like dir,mknod ,vg

Instead of showing pseudo commands, it would be nice to see the *actual* commands you issued. Is your minor number unique in your 'mknod'? Do you realize in 11.31 that the 'mkdir' and 'mknod' steps will be done by 'vgcreate' automatically if you choose? What happens if you do that?

Regards!

...JRF...

Re: vg prob

Horia Chirculescu — Wed, 22 Sep 2010 10:27:58 GMT

Standard procedure to create a VG is:

mkdir /dev/vg01

mknod /dev/vg01/group c 64 0xNN0000

vgcreate /dev/vg01 /dev/dsk/c?t?d?

What did you do?

Horia.

Re: vg prob

Torsten. — Wed, 22 Sep 2010 10:32:14 GMT

No, since march 2008 the standard is just

# vgcreate /dev/vgname /dev/disk/disk_

Did you do that?

Re: vg prob

ManojK_1 — Thu, 23 Sep 2010 05:55:20 GMT

Hi,

What is the output of "vgdisplay -v vg01"

Manoj K

Re: vg prob

shanmuhanandam — Thu, 23 Sep 2010 07:13:34 GMT

Hi,

can you recreate the VG, and paste the output here. So that it can be easy for the forum to help you.

Thanks,
shan.

Re: vg prob

Chandrahasa s — Thu, 23 Sep 2010 15:20:04 GMT

Hi,

In hpux v3 you no need to create directory like vg01 under /dev/

No need to create group file also.

Run command like:
pvcreate pvname
vgcreate vgname pvname

Example

#ioscan -m disk >> find disk persistent device file

pvcreate /dev/rdisk/disk25

vgcreate -s 64 vg01 /dev/disk/disk25

lvcreate -L size in MB vgname

newfs -F vxfs -o largefiles

Chandra