topic Re: Lun creation in Operating System - HP-UX

Lun creation

Jeffrey F. Goldsmith — Fri, 21 Mar 2003 17:17:50 GMT

I needed more space on vg01 so after checking to see how much space was availble on my Array I created LUN3 with 16052MB.

My question is how do I add that space to vg01?

Re: Lun creation

Pete Randall — Fri, 21 Mar 2003 17:24:32 GMT

vgextend /dev/vg03 /dev/dsk/c0t1d0

substitute the address of your LUN for /dev/dsk/c0t1d0

Pete

Re: Lun creation

Uday_S_Ankolekar — Fri, 21 Mar 2003 17:29:27 GMT

The way you normally extend VG.

LUN3 must have created a physical device with #3 in it. Confirm this with ioscan.

then vgextend the volume group

vgextend /dev/dsk/diskname /dev/vg01

Goodluck,
-USA..

Re: Lun creation

Jeffrey F. Goldsmith — Fri, 21 Mar 2003 17:35:03 GMT

Re: Lun creation

Michael Steele_2 — Fri, 21 Mar 2003 17:39:38 GMT

What kind of array? XP?

ioscan -f

-or-

insf -e

If xp then ".xpinfo.".

If you can't see it now and xp then are you using security?

Re: Lun creation

Uday_S_Ankolekar — Fri, 21 Mar 2003 17:41:22 GMT

run "ioscan -fnC disk" and attach that output

-USA...

Re: Lun creation

Pete Randall — Fri, 21 Mar 2003 17:45:20 GMT

I suspect that it's 0/4/0/0.0.3 disk HP C5447A and has a mirror at 0/7/0/0.1.3 disk HP C5447A.

Do an ioscan -fnCdisk and a vgdisplay -v to see if these addresses are used.

Pete

Re: Lun creation

Jeffrey F. Goldsmith — Fri, 21 Mar 2003 17:50:44 GMT

Here it is:

root: /home/root ==> ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
disk 0 0/0/1/1.2.0 sdisk CLAIMED DEVICE IBM DMVS09D
/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0
disk 1 0/0/2/0.2.0 sdisk CLAIMED DEVICE IBM DMVS09D
/dev/dsk/c2t2d0 /dev/rdsk/c2t2d0
disk 2 0/0/2/1.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 6x/32x
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
disk 3 0/4/0/0.0.0 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c4t0d0 /dev/rdsk/c4t0d0
disk 5 0/4/0/0.0.1 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c4t0d1 /dev/rdsk/c4t0d1
disk 7 0/4/0/0.0.2 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c4t0d2 /dev/rdsk/c4t0d2
disk 9 0/4/0/0.0.3 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c4t0d3 /dev/rdsk/c4t0d3
disk 4 0/7/0/0.1.0 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c5t1d0 /dev/rdsk/c5t1d0
disk 6 0/7/0/0.1.1 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c5t1d1 /dev/rdsk/c5t1d1
disk 8 0/7/0/0.1.2 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c5t1d2 /dev/rdsk/c5t1d2
disk 10 0/7/0/0.1.3 sdisk CLAIMED DEVICE HP C5447A
/dev/dsk/c5t1d3 /dev/rdsk/c5t1d3
root: /home/root ==>

Re: Lun creation

Pete Randall — Fri, 21 Mar 2003 17:53:01 GMT

And the vgdisplay?

Re: Lun creation

Jeffrey F. Goldsmith — Fri, 21 Mar 2003 18:08:15 GMT

Did you want the entire vgdisplay -v or only part of it?

vg00
--- Physical volumes ---
PV Name /dev/dsk/c1t2d0
PV Status available
Total PE 2169
Free PE 76
Autoswitch On

PV Name /dev/dsk/c2t2d0
PV Status available
Total PE 2169
Free PE 76
Autoswitch On

vg01
--- Physical volumes ---
PV Name /dev/dsk/c4t0d0
PV Status available
Total PE 10750
Free PE 0
Autoswitch On

PV Name /dev/dsk/c4t0d1
PV Name /dev/dsk/c5t1d1 Alternate Link
PV Status available
Total PE 4995
Free PE 531
Autoswitch On

Re: Lun creation

Uday_S_Ankolekar — Fri, 21 Mar 2003 18:13:18 GMT

Looks like c4t0d3 is the device you can extend vg01.

diskinfo /dev/rdsk/c4t0d3 would show you the lun size.

pvdisplay /dev/dsk/c4t0d3 will show you if you have already used this device for any VG.

-USA..

Re: Lun creation

Pete Randall — Fri, 21 Mar 2003 18:17:08 GMT

As USA said, verify with pvdisplay that /dev/dsk/c4t0d3
is not already used - then go ahead and vgextend /dev/vg01 /dev/dsk/c4t0d3.

Pete

Re: Lun creation

Jeffrey F. Goldsmith — Fri, 21 Mar 2003 18:24:25 GMT

I think that I am getting closer. After following your steps this is what I get:

root: /home/root ==> diskinfo /dev/rdsk/c4t0d3
SCSI describe of /dev/rdsk/c4t0d3:
vendor: HP
product id: C5447A
type: direct access
size: 16437248 Kbytes
bytes per sector: 512
root: /home/root ==> pvdisplay /dev/dsk/c4t0d3
pvdisplay: Couldn't find the volume group to which
physical volume "/dev/dsk/c4t0d3" belongs.
pvdisplay: Cannot display physical volume "/dev/dsk/c4t0d3".
root: /home/root ==> vgextend /dev/dsk/c4t0d3 /dev/vg01
vgextend: Physical volume "/dev/vg01" is not a block special file.
Usage: vgextend
[-f]
[-A Autobackup]
[-x Extensibility]
[-g PhysicalVoumeGroupName]
[-z SparePV]
VolumeGroupName PhysicalVolumePath...
"PhysicalVolumePath": must be a block special file.
root: /home/root ==>

Re: Lun creation

Michael Steele_2 — Fri, 21 Mar 2003 18:28:24 GMT

Its:

vgextend /dev/vg01 /dev/dsk/c4t0d3

Re: Lun creation

Jeffrey F. Goldsmith — Fri, 21 Mar 2003 18:34:18 GMT

this is what i get when used properly:

root: /home/root ==> vgextend /dev/vg01 /dev/dsk/c4t0d3
vgextend: IO error on Physical Volume device /dev/dsk/c4t0d3: root: /home/root

Re: Lun creation

Jeff Schussele — Fri, 21 Mar 2003 18:34:32 GMT

Uhmmmm...

Aren't we missing a

pvcreate /dev/rdsk/c4t0d3

before the vgextend here?

Rgds,
Jeff

Re: Lun creation

Pete Randall — Fri, 21 Mar 2003 18:36:29 GMT

Good point, Jeff - that must be why Sri pays you the big bucks, huh?

;^)

Pete

Re: Lun creation

Jeffrey F. Goldsmith — Fri, 21 Mar 2003 19:18:19 GMT

I want to thank everyone that helped me get this figured out. Everything is working the way I hoped it would. I took the time to go back and take notes so that the next time that I have to do this I will know the steps.

Re: Lun creation

Eugeny Brychkov — Fri, 21 Mar 2003 19:23:27 GMT

C5447A is an AutoRAID 12h. This array can have only 8 LUNs. It is connected to two SCSI HBAs: c4 and c5. One controller has Id 0 and another Id 1 (t0 and t1). LUN number can only be in 0-7 range. So LUN you're seeking for is that with LUN#=3.
As soon as AutoRAID is connected using classic redundant topology, when extending volume group make sure you included another path as alternate for this LUN (physical volume).
And last question: what's firmware version array has? Latest is HP62
Eugeny