LVM info from new PV

[BT Ireland]

Hi,

I am writing scripts to automate a migration of HP-UX 11.11 servers from one FC switch to another.

I have the export scripts written to vgreduce the PV's from one path and I'm trying to write a script to automate the import after the device files change.

Once the HBA is moved to the new FC switch and the ioscan & insf creates the new devices files I can use vgscan to list all the new devices and their VGs.

However, how can I determine which VG the new devices belong to?

root@locutus:/migrate/mds/bin # pvdisplay /dev/dsk/c43t1d7
pvdisplay: Couldn't find the volume group to which
physical volume "/dev/dsk/c43t1d7" belongs.
pvdisplay: Cannot display physical volume "/dev/dsk/c43t1d7".

root@locutus:/migrate/mds/bin # pvdisplay -l /dev/dsk/c43t1d7
/dev/dsk/c43t1d7:LVM_Disk=yes

root@locutus:/migrate/mds/bin # diskinfo /dev/rdsk/c43t1d7
SCSI describe of /dev/rdsk/c43t1d7:
vendor: HP
product id: OPEN-V
type: direct access
size: 48000 Kbytes
bytes per sector: 512
root@locutus:/migrate/mds/bin #

regards,
Shane

[Torsten.]

Consider to use xpinfo command and compare the results or run vgscan in preview mode.

[James R. Ferguson]

Hi Shane:

You could read the LVM metadata of the raw devices to see which ones share a common VGID.

See my post in this thread:

http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1098858

Regards!

...JRF...

[rariasn]

Hi,

Get PVID and GID from all ctds.

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1171205

rgs,

[Deeos]

hi,


You can use

#pvdisplay /dev/dsk/cxtxdx|more



it will let you know the VG group associated with this disk.



Regards
Deeos

[BT Ireland]

Hi guys,

Thanks for all your responses.

Our servers are connected to HP XP storage and HP EVA storage with multiple paths to each LUN.

After an ioscan & insf I am using xpinfo & evainfo to determine the new & existing LUN information.

By cross referencing the XP CU:LDEVs & the EVA WWNN I am able to determine which Volume Group each device belongs to.

Thanks again
regards,
Shane

[BT Ireland]

Thanks to all