Managing Serviceguard Eighteenth Edition, September 2010

4. Still on ftsys10, create a control file named group in the directory /dev/
vgdatabase, as follows:
mknod /dev/vgdatabase/group c 64 0xhh0000
Use the same minor number as on ftsys9. Use the following command to display
a list of existing volume groups:
ls -l /dev/*/group
5. Import the volume group data using the map file from node ftsys9. On node
ftsys10, enter:
vgimport -s -m /tmp/vgdatabase.map /dev/vgdatabase
Note that the disk device names onftsys10 may be different from their names
on ftsys9. Make sure the physical volume names are correct throughout the
cluster.
When the volume group can be activated on this node, perform a vgcfgbackup.
(This backup will be available in the unlikely event that a vgcfgrestore must
be performed on this node because of a disaster on the primary node and an LVM
problem with the volume group.) Do this as shown in the example below:
vgchange -a y /dev/vgdatabase
vgcfgbackup /dev/vgdatabase
vgchange -a n /dev/vgdatabase
6. If you are using mirrored individual disks in physical volume groups, check the
/etc/lvmpvg file to ensure that each physical volume group contains the correct
physical volume names for ftsys10.
NOTE: When you use PVG-strict mirroring, the physical volume group
configuration is recorded in the /etc/lvmpvg file on the configuration node. This
file defines the physical volume groups which are the basis of mirroring and
indicate which physical volumes belong to each physical volume group. Note that
on each cluster node, the /etc/lvmpvg file must contain the correct physical
volume names for the physical volume groups’s disks as they are known on that
node. Physical volume names for the same disks could be different on different
nodes. After distributing volume groups to other nodes, make sure each node’s
/etc/lvmpvg file correctly reflects the contents of all physical volume groups on
that node. See “Making Physical Volume Group Files Consistent” (page 238).
7. Make sure that you have deactivated the volume group on ftsys9. Then enable
the volume group on ftsys10:
vgchange -a y /dev/vgdatabase
8. Create a directory to mount the disk:
mkdir /mnt1
9. Mount and verify the volume group on ftsys10:
Preparing Your Systems 237