Managing Serviceguard Extension for SAP Version B.05.10, December 2012

Prerequisites
You must having the following installed and already configured:
• HP-UX and Serviceguard
• A Serviceguard cluster with at least two nodes attached to the network. (Node names:
clunode1 and clunode2)
• Any shared storage supported by Serviceguard. The shared storage used for this configuration
is based on (Enterprise Virtual Array) EVA—a fibre channel based storage solution in an
HPVM configuration.
NOTE: Refer to the latest Managing Serviceguard manual for Serviceguard installation instructions
at www.hp.com/go/hpux-serviceguard-docs —> HP Serviceguard —> User guide.
The MDM SGeSAP File System Layout
The following table for the file system layout will be used for installing MDM. The configuration
described in this chapter uses the SAP System ID “MO7”. There are three MDM server components:
MDS, MDIS and MDSS. The database used is Oracle and is referred to as MDB. The file systems
can be categorized in three groups:
• Local: The file system and the underlying storage are always local to a cluster node. Access
to file system is only possible from this cluster node. The file system cannot be relocated to
other cluster nodes.
• Relocatable: In the case of a failover the file system and the underlying storage relocate
together with a Serviceguard package. File system can be relocated to any cluster node. The
file system can only be mounted exclusively and accessed from the cluster node running the
Serviceguard package though.
• NFS client: All cluster nodes mount the file system as NFS clients at the same time.
File system sizeAccess PointFile system
100MBlocal to a node/home/mo7adm
500MBlocal to a node/usr/sap
100MBlocal to a node/usr/sap/MO7/SYS
5GBrelocate with SGeSAP package/usr/sap/MO7/MDS01
5GBrelocate with SGeSAP package/usr/sap/MO7/MDIS02
5GBrelocate with SGeSAP service/usr/sap/MO7/MDSS03
2GBrelocate with HA NFS package/export/sapmnt/MO7
-NFS client mount point
/sapmnt/MO7
3GBrelocate with HA NFS package/export/oracle/client
-NFS client mount point
/oracle/client
20GBrelocate with SGeSAP package/oracle/MO7
/home/mo7adm
In this configuration the /home/mo7adm directory is local on each cluster node and will not
relocate. It contains environment profiles for the MDM administrator user. Note that if desired
/home/mo7adm could also have been setup as a Serviceguard NFS service, but for this installation
a local configuration was chosen.
/usr/sap
162 SAP Master Data Management (MDM)