topic Re: increase /stand in Operating System - HP-UX

increase /stand

Jairo Campana — Thu, 27 Nov 2003 09:01:04 GMT

hello I want extend /stand but I have miror
my procedure is correct:
Need to return a mirror
Steps

01. Boot your machine in LVM maintenance mode
(hpux -lm at ISL>)
#vgchange -a y /dev/vg00
#lvrmboot -r /dev/vg00
#lvremove /dev/vg00/lvol2
extender /stand
#lvextend -L "A+X" /dev/vg00/lvol1
#extendfs /dev/vg00/rlvol1
crear /swap
#lvcreate -C y -r n -L 50 -n lvol2 /dev/vg00
#lvcreate -L "B-(X+10)" -C y -r n -n lvol2 /dev/vg00

#lvlnboot -b /dev/vg00/lvol1
#lvlnboot -r /dev/vg00/lvol3
#lvlnboot -s /dev/vg00/lvol2
#lvlnboot -d /dev/vg00/lvol2
#lvlnboot -R
#reboot -r

Re: increase /stand

Robert-Jan Goossens — Thu, 27 Nov 2003 09:04:24 GMT

Hi Jairo,

This is very very risky, why not use a ignite tape ?

Regards,
Robert-Jan

Re: increase /stand

Stefan Farrelly — Thu, 27 Nov 2003 09:07:26 GMT

Doesnt look too bad. My only concern is once you recreate swap its now too big to fit into its old place (because you extended lvol1) so it will be created after all the other lvols (further down the disk past the first 2Gb), whereas if I recall correctly primary swap needs to be within the first 2Gb on a disk. So, what I would try is when you go to recreate swap (lvol2) make it smaller, ie. if you increased stand by 100MB reduce primary swap by 100MB, then create a secondary swap area (lvol9 typically) and set it to 100MB to make up the shortfall so you get back, overall, to your same swap size and primary swap is stil back where it was.

Re: increase /stand

Fabio Ettore — Thu, 27 Nov 2003 09:07:44 GMT

Hi,

a good procedure in attachment.

I hope this helps you.

Best regards,
Ettore

Re: increase /stand

Jairo Campana — Thu, 27 Nov 2003 09:23:00 GMT

Robert Jan , one assumes that before this I do I have fact

Re: increase /stand

Jairo Campana — Thu, 27 Nov 2003 09:42:48 GMT

OK execute my procedure ....is correct.

thanks

Rossi I am going to prove you procedure in attach.

Re: increase /stand

KapilRaj — Thu, 27 Nov 2003 09:59:03 GMT

Procedure is correct ....

Only thing to be taken care is to create a secondary swap space on the system to compensate the space u have used to extend stand !.

I saw some where in the posts that SWAP needs to be there in the first 2 GB .... As per my knowledge BOOT,SWAP and ROOT (lvol1 or stand, lvol2 or stand and lvol3 or root) volumes should be contegious...

All the best !

Kaps

Re: increase /stand

Jdamian — Thu, 27 Nov 2003 10:28:56 GMT

I suggest another procedure I executed some time ago.

I should create a new lvol an mount as /stand/build.

Re: increase /stand

Bernhard Mueller — Thu, 27 Nov 2003 11:31:00 GMT

Jairo,

actually this looks fine to me with the exception that you say you have a mirored boot disk

So the one duplicate line you list:
#lvcreate -C y -r n -L 50 -n lvol2 /dev/vg00
#lvcreate -L "B-(X+10)" -C y -r n -n lvol2 /dev/vg00

you should use
lvcreate -L "B-(X+10)" -m 1 -C y -r n -n lvol2 /dev/vg00

Then you mirror should also be fine.

Regards,
Bernhare

Re: increase /stand

Jairo Campana — Thu, 27 Nov 2003 11:44:17 GMT

Bernhare :very good observation , I eliminate the line

lvcreate -C y -r n -L 50 -n lvol2 /dev/vg00

Re: increase /stand

Hemanth Gurunath Basrur — Sat, 29 Nov 2003 01:57:26 GMT

Hi,

Also, refer to this thread in ITRC:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?admit=716493758+1070088868570+28353475&threadId=6858

HTH.

Regards,
Hemanth