HP StorageWorks Clustered File System 3.2.1 Windows Storage Server Edition Administration Guide (February 2006)

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Introduction
HP StorageWorks Clustered File System provides a cluster structure for
managing a group of network servers and a Storage Area Network (SAN)
as a single entity.
Product Features
HP Clustered File System includes the following features:
• Fully distributed data-sharing environment. The PSFS filesystem
enables all servers in the cluster to directly access shared data stored
on a SAN. After a PSFS filesystem has been created on a SAN disk, all
servers in the cluster can access the filesystem and perform concurrent
read and/or write operations to it. PSFS is a journaling filesystem and
provides online crash recovery. It is designed to be performant,
scalable, highly recoverable, and highly available.
• Availability and reliability. Servers and SAN components (FC
switches and RAID subsystems) can be added to a cluster with
minimal impact, as long as the operation is supported by the
underlying operating system. HP Clustered File System includes
failover mechanisms that enable the cluster to continue operations
without interruption when various types of failures occur. If network
communications fail between any or all servers in the cluster, HP
Clustered File System maintains the coherency and integrity of all
shared data in the cluster.