VERITAS Storage Foundation 4.1 Cluster File System HP Serviceguard Storage Management Suite Extracts, December 2005

Chapter 2, Installing and Configuring
Software Components
11
Shared Storage
Shared storage can be one or more shared disks or a disk array connected either directly to
the nodes of the cluster or through a Fibre Channel Switch. Nodes can also have
non-shared or local devices on a local I/O channel. The root file system is on a local
device.
Fibre Channel Switch
Each node in the cluster must have a Fibre Channel I/O channel to access shared storage
devices. The primary component of the Fibre Channel fabric is the Fibre Channel switch.
Cluster Platforms
There are several hardware platforms that can function as nodes in a cluster file system
cluster (see the Storage Foundation Cluster File System HA Release Notes). Install the HP-UX
11i 64-bit operating system with the September 2004 HP-UX 11i Version 2.0 on each node.
and install a Fibre Channel host bus adapter to allow connection to the Fibre Channel
switch.
Note For a cluster to work correctly, all nodes must have the same time. If you are not
running the Network Time Protocol (NTP) daemon, make sure the time on all the
systems comprising your cluster are synchronized.
Software Components
SFCFS and SFCFS HA
Storage Foundation (SFCFS) is the name of the VERITAS Cluster File System product and
its supporting software packages. Storage Foundation Cluster File System HA
(SFCFS HA) contains the SFCFS packages, plus the packages to support the application
failover functionality of the VERITAS Cluster Server.
Note SFCFS and SFCFS HA are separately licensed. A SFCFS key will not allow
installation of the SFCFS HA packages that provide V availability (see
“Additional Packages Installed With SFCFS HA Only” on page 13).