Managing Serviceguard Eighteenth Edition, September 2010

mount /dev/vgdatabase/lvol1 /mnt1
10. Unmount the volume group on ftsys10:
umount /mnt1
11. Deactivate the volume group on ftsys10:
vgchange -a n /dev/vgdatabase
Making Physical Volume Group Files Consistent
Skip this section if you do not use physical volume groups for mirrored individual
disks in your disk configuration, or if you are using cDSFs; see “About Cluster-wide
Device Special Files (cDSFs)” (page 135) for more information about cDSFs.
Different volume groups may be activated by different subsets of nodes within a
Serviceguard cluster. In addition, if you are not using cDSFs, the physical volume name
for any given disk may be different on one node from what it is on another. For these
reasons, you must carefully merge the /etc/lvmpvg files on all nodes so that each
node has a complete and consistent view of all cluster-aware disks as well as of its own
private (non-cluster-aware) disks. To make merging the files easier, be sure to keep a
careful record of the physical volume group names.
Use the following procedure to merge files between the configuration node (for example,
ftsys9) and a new node (for example, ftsys10) to which you are importing volume
groups:
1. Copy /etc/lvmpvg from ftsys9 to /etc/lvmvpg.new on ftsys10.
2. If there are volume groups in /etc/lvmpvg.new that do not exist on ftsys10,
remove all entries for that volume group from /etc/lvmpvg.new.
3. If /etc/lvmpvg on ftsys10 contains entries for volume groups that do not
appear in /etc/lvmpvg.new, copy all physical volume group entries for that
volume group to/etc/lvmpvg.new.
4. Adjust any physical volume names in /etc/lvmvpg.new to reflect their correct
names on ftsys10.
5. On ftsys10, copy /etc/lvmpvg to /etc/lvmpvg.old, to create a backup.
Copy /etc/lvmpvg.new to /etc/lvmpvg on ftsys10.
Creating Additional Volume Groups
The foregoing sections show in general how to create volume groups and logical
volumes for use with Serviceguard. Repeat the procedure for as many volume groups
as you need to create, substituting other volume group names, logical volume names,
and physical volume names. Pay close attention to the disk device names, which can
vary from one node to another.
238 Building an HA Cluster Configuration