how to align vg configuration between two servers of a cluster

[Stefano_10]

I have modify a volume group configuration of my cluster, adding a phisical volume to a volume group (on node 1).
I would know what i have to do to align the configuration of this vg also on node 2.

[Pete Randall]

Run vgexport (in preview mode: -p) on the modified system. Then vgexport the vg on the second system and vgimport the new definition from the other system.


Pete

[Ron Cornwell]

On node1
vgexport -v -s -p -m /tmp/clustervg.map clustervg
ll /dev/clustervg/group
ftp /tmp/clustervg.map to node2 /tmp/clustervg.map
On node2
deactivate clustervg if in use
vgexport -v clustervg
mkdir /dev/clustervg
mknod /dev/clustervg/group c 64 0x?????? (see ll from node1)
vgimport -v -s -m /tmp/clustervg.map clustervg

[Kent Ostby · Accepted solution]

Stefano --

There is also a certified document in the ITRC knowledge database:

UXSGLVKBAN00000002

http://www2.itrc.hp.com/service/cki/search.do?category=c0&mode=id&searchString=UXSGLVKBAN00000002&searchCrit=allwords&docType=Security&docType=Patch&docType=EngineerNotes&docType=BugReports&docType=Hardware&docType=ReferenceMaterials&docType=ThirdParty&search.x=30&search.y=12

[Sanjay_6]

The way we do this is,

shutdown the package that has this vg. Then activate the vg on one node.

vgchange -a e /dev/vgname

add the new pv to this vg and then do a vgexport and then deactivate the vg,

vgexport -p -s -m /tmp/vgname.map /dev/vgname
vgchange -a n /dev/vgname

rcp this map file to the /tmp on the 2nd node.

Now remove the vgname vg info from this node and then do a vgimport and then do a vgactivate,

vgexport /dev/vgname

mkdir /dev/vgname
mknod /dev/vgname/group c 64 0x0n0000
vgimport -s -m /tmp/vgname.map /dev/vgname
vgchange -a n /dev/vgname
vgchange -a e /dev/vgname

mount the filesystems and check.

Hope this helps.

Regds