HP Serviceguard Toolkit for SAP Sybase ASE and SAP Sybase Replication Server for Linux User Guide Version A.12.00.00

Shared configuration
The Sybase ASE/RS software is installed on the shared storage (LVM), which is shared across all
the package nodes of a cluster.
NOTE:
• In both the configurations, shared and Non-shared, the database must be configured on the
shared storage and must be visible on all the package nodes of a cluster.
• HP recommends that you install the software on the local disks for easy software upgrade,
and to eliminate the Single Point Of Failure of the software installation disk.
• If the software is installed on the shared configuration, the Sybase toolkit does not validate
the availability of certain files and binaries when the cmcheckconf –P command is executed.
Configuring Sybase ASE or Sybase RS instances
The ASE and RS instances must be configured to run on the same node of a cluster. This ensures
that the Replication Server failsover or failsback in the cluster environment along with the ASE.
1. Install the Sybase ASE and RS in the INSTALL_HOME directory. For example: Sybase ASE in
/opt/sybase and Sybase RS in /Sybase/REP.
The directory is used as INSTALL_HOME.
2. Name the volume group and file system uniquely within the cluster. Therefore, use the name
of the instances of ASE or RS while naming volume group or the file system roots.
For example:
To create volume group and file system, you can consider the name of the RS instance as RS1.
/dev/vg0_RS1 (the volume group)
/dev/vg0_RS1/lvol1 (the logical volume)
/dev/vg0_RS1/lvol1 (the filesystem) mounted at /RS1
To create volume group and file system, you can consider the name of the ASE instance as
ASE1.
/dev/vg0_ASE1 (the volume group)
/dev/vg0_ASE1/lvol1 (the logical volume)
/dev/vg0_ASE1/lvol1 (the filesystem) mounted at /ASE1
For more information about creating a logical volume infrastructure on a shared disk, see the
latest edition of Managing Serviceguard manual at http://www.hp.com/go/
linux-serviceguard-docs.
NOTE: The disk or storage device must be accessible on all the clustered nodes that are
configured to run ASE and RS instances.
3. Ensure that the password files, log file, or interface file that are accessed by Sybase instance
has the required administrative user access and permissions on all the package nodes.
Sybase interface file
For setting up ASE or RS instances in a Serviceguard cluster, the ASE or RS instance must be
available at the same IP address across all the package nodes in the cluster. To achieve this, you
must edit the interface file.
For example, a default setup of RS instance, RS1, might have an interface entry as:
RS1
master tcp ether ipl3 4904
query tcp ether ipl3 4904
Here, ipl3 is the node name of the Linux server.
16 Configuring SAP Sybase ASE and SAP Sybase Replication Server