topic Re: increase max pv in Operating System - HP-UX

increase max pv

sassou — Wed, 29 Dec 2004 15:20:19 GMT

Hallo,
I want an instruction to increase the number of max pv.
The default is 16 I need more
Thank you for your help,
sincerly
Firmin Sassou KUZO

Re: increase max pv

Sanjay_6 — Wed, 29 Dec 2004 15:23:08 GMT

Hi,

If you want to increase the number of max_pv for an existing VG, you cannot. You have to recreate the vg.

If you want to increase the limit on PV for a new VG, you use the "-p some_number" option with the vgcreate command. the some_number is the new limit for the number for pvs for this vg.

Hope this helps.

regds

Re: increase max pv

Stf — Wed, 29 Dec 2004 15:24:04 GMT

look at this link, I hope this could help you...

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=619420

Stf ;-)

Re: increase max pv

sassou — Wed, 29 Dec 2004 15:25:34 GMT

I've already created the vg without using the option -p

Re: increase max pv

Jeff Schussele — Wed, 29 Dec 2004 15:26:43 GMT

Hi Firmin,

Well sorry, you're not going to like the answer, but the only way to increase Max PV is to backup the data, remove the current VG & recreate it initially with a higher value - like:

vgcreate -p 32 /dev/vg_name

All the values shown in a vgdisplay are hard-set & cannot be changed "on-the-fly".
The default Max PV value is 16 so when this VG was created the -p value was not specified.
Of course after you recreate the VG you can recreate the LV structure & then restore the backed up data.

Rgds,
Jeff

Re: increase max pv

Nguyen Anh Tien — Wed, 29 Dec 2004 21:00:51 GMT

the systax of vgcreate command is

/usr/sbin/vgcreate [-f] [-A autobackup] [-x extensibility] [-e max_pe]
[-l max_lv] [-p max_pv] [-s pe_size] [-g pvg_name] vg_name
pv_path ...
so you need only use -p option.

Hope this help
tienna