Installation guide

 Cluster Servers:
 (2) Fujitsu Siemens Rx220
 Storage:
 EMC CLARiiON
 SAN Infrastructure:
 QLogic
SAP Installation:
 SAP NetWeaver 2004, WebAS ABAP on MaxDB
 SAP NetWeaver 7.0, WebAS ABAP+JAVA on Oracle
3 Hardware Requirements
3.1 Shared Storage Requirements
Shared storage indicates external storage accessible by every cluster member. For increased
availability, the Storage Area Network (SAN) is configured with multiple physical paths
between servers and storage in an attempt to reduce any single point of cluster failure.
Whether using iSCSI, fibre channel or another means of connecting to shared storage, higher
availability is typically accomplished by using:
 multiple HBAs on the hosts
 multiple switches (if applicable) between host and storage
 multiple controllers on the storage arrays
 RAID sets when creating LUNs on the storage arrays
 LVM mirroring of volumes across storage arrays
In this manner, the chances of any one hardware failure resulting in a loss of cluster
functionality is greatly reduced.
Because there are many varying storage vendors available, this document assumes that
LUNs have been created on the storage and presented to all HBAs on each host for
subsequent device discovery.
3.2 Server Hardware Requirements
The server hardware requirements can be fulfilled by almost any enterprise grade server. The
supported architectures are single or multicore x86_64 processors. Typically, SAP servers
are equipped with a fair amount of memory starting at 2 gigabytes and are usually limited only
by the hardware specification. The cluster nodes need to be attached to a fencing
mechanism. Please reference the "Cluster Fencing section for further information.
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