topic Re: disks with associate vg in Operating System - HP-UX

disks with associate vg

Gerald_13 — Mon, 30 Dec 2002 15:52:13 GMT

Hi,
I would like to know how list disk with associate vg name and unused disks with one command with one display (like lspv in AIX OS if you know this os)
Thanks very much for your help.

regards,
Gerald

Re: disks with associate vg

Robert-Jan Goossens — Mon, 30 Dec 2002 15:57:38 GMT

Hi Gerald,

How about
# vgdisplay -v /dev/vg00

Robert-Jan.

Re: disks with associate vg

John Poff — Mon, 30 Dec 2002 15:59:12 GMT

Hi Gerald,

To list all the disks that a system can see, you can do this:

ioscan -fnC disk

To see which disks are used in your volume groups, do:

vgdisplay -v

I'm familiar with the 'lspv' command in AIX, and there isn't an equivalent command in HP-UX. For you HP-UX guys, here is what the output of an 'lspv' looks like:

# lspv
hdisk0 006016216115490d rootvg
hdisk1 0060162185f82c12 catvg
hdisk2 0060162185f83c87 catvg
hdisk3 0060162185f81a6b bkupvg
hdisk4 006016214a52901a catvg
hdisk5 006016214a52928a catvg

It lists the disk device name, a disk ID, and the volume group that each disk belongs to. Kind of cool, but there isn't a similar command in HP-UX.

JP

Re: disks with associate vg

James R. Ferguson — Mon, 30 Dec 2002 16:00:25 GMT

Hi Gerald:

HP-UX doesn't have a single command that provides the information like AIX's 'lspv'.

'ioscan -kfnC disk' will return a list of all disk devices. This does not distinguish between used, unused and 'pvlink' devices.

'vgdisplay -v' will return a listing of all disk devices as associated with all volume groups including the logical volumes (if any) associated with each. It probably comes closest to 'lspv'.

Regards!

...JRF...

Re: disks with associate vg

Gerald_13 — Mon, 30 Dec 2002 16:01:42 GMT

Thanks very much Robert-jan but with this command, I haven't got free disks. When there are a lot of disk the "ioscan -fnk -C disk" it is not very good for display the unused disks.
Have you got another solution?

thanks
Gerald

Re: disks with associate vg

Jose Mosquera — Mon, 30 Dec 2002 16:02:51 GMT

Hi,

Try with "vgdisplay -v "

If you need more info about use "man vgdisplay"

Rgds.

Re: disks with associate vg

Robert-Jan Goossens — Mon, 30 Dec 2002 16:04:39 GMT

Hi Gerald,

Well John showed me what a wonderfull command AIX got, hpux does not do "that" in one command ;>)

Kind regards,

Robert-Jan.

Re: disks with associate vg

Gerald_13 — Mon, 30 Dec 2002 16:05:40 GMT

thanks very much for you help.
I've got my reponse, it doesn't exist a similar command as AIX.
OK thank's very much and happy new year everybody and sorry for my bad english.

regards
Gerald

Re: disks with associate vg

Anthony deRito — Mon, 30 Dec 2002 16:08:08 GMT

You can compare what is in your lvmtab file with the actual disk devices files on your system. I quickly ran this command to list the physical devices listed in the current /etc/lvmtab file. To do this, make sure that your /etc/lvmtab file is current and accurate.

#strings /etc/lvmtab | grep -v "/dev/dsk" | xargs vgdisplay -v | grep "PV Name"

Then compare this output to the actual physical disks on your system... from ioscan or looking in the /dev directory. Its crude but it one way.... sure you get more responses.

Re: disks with associate vg

James Murtagh — Mon, 30 Dec 2002 16:09:36 GMT

Hi Gerald,

The closest I can think of is a Veritas Volume Manager command, but obviously you need VxVM installed and be at least 11i! Otherwise use strings on /etc/lvmtab

# strings /etc/lvmtab
/dev/vg00
/dev/dsk/c0t6d0
/dev/dsk/c1t4d0
# vxdisk list
DEVICE TYPE DISK GROUP STATUS
c0t6d0 simple - - LVM
c1t0d0 simple disk01 rootdg online
c1t2d0 simple disk02 oracledg online
c1t4d0 simple - - LVM

Regards,

James.

Re: disks with associate vg

Vitek Pepas — Mon, 30 Dec 2002 16:12:02 GMT

I don't know HP-UX command that would do it, so I wrote a script (see attachment). It may not be perfect (i.e. it shows CD-ROM just like hard disk), but works for me.
Enjoy!

Re: disks with associate vg

Gerald_13 — Mon, 30 Dec 2002 16:21:59 GMT

thanks a lot for your script and thanks everybody !!
regards,
Gerald

Re: disks with associate vg

MANOJ SRIVASTAVA — Mon, 30 Dec 2002 17:11:46 GMT

Also Gerald , incase the lvmtab is screwed up or doesnt report the correct disks , string /etc/lvmconf/vg01.conf will tell you the correct inforramtion .

Manoj Srivastava

Re: disks with associate vg

Daniel B. Smith — Wed, 29 Dec 2004 08:20:43 GMT

If you use the "SAM" utility in HP-UX, you can display all the disks, used and unused.