Using MySQL Toolkit in a HP Serviceguard Cluster Revision README: B.06.00

As a result, all (package) resources are halted.
2. The relocatable IP address is removed from this node.
3. File systems are unmounted and all volume groups assigned to this
package are deactivated.
Standby Node
------------
4. Volume groups are activated and file systems are mounted.
5. The relocatable IP address is moved over to the new node.
6. All resources are started up, and the database is brought up.
7. Clients will (continue to) connect through the same (relocatable)
IP address.
Multiple Database Instances
MySQL database server supports multiple DB instances running on the
same node. Using the toolkit, multiple MySQL packages can be easily
configured to run on the same node. One copy of the toolkit can serve
exactly one package. So, to configure multiple packages, you must
create separate directories - one per package - and configure each
package to run a unique database instance.
B. Setting Up The Database Server Application
Before creating the packages, you must configure the shared storage
and create the database.
1. Follow the instructions in the chapter entitled "Building an HA
Cluster" in the document "Managing Serviceguard" for volume group
(VG)
and file system creation. Create a unique VG and filesystem on
shared
storage for each instance of the DB to be included in the
configuration.
2. On each node, create a mount point for each filesystem. The mount
point for a specified instance/package must be the same for all
nodes.
The following example shows a configuration of MySQL for a filesystem
named "/MySQL_1" on /dev/vg01.
1. Assuming that LVM has been set up on the shared storage, create a
filesystem (e.g., /MySQL_1) on the LV and mount point (e.g.,
/MySQL_1) on each of the nodes to mount the filesystem. If you
need help creating the VG and filesystem, please refer to the
chapter entitled "Building an HA Cluster" in the manual "Managing
Serviceguard" for explicit instructions.