VERITAS FlashSnap Point-In-Time-Copy Solutions Administrator's Guide

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Off-Host Cluster File System Backup
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VERITAS Cluster File System (CFS) allows cluster nodes to share access to the same file system.
CFS is especially useful for sharing read-intensive data between cluster nodes.
Off-host backup of cluster file systems may be implemented by taking a snapshot of the volume
containing the file system and performing the backup operation on a separate host.
As illustrated in “System Configuration for Off-Host File System Backup Scenarios” on page 40,
the primary volume that contains the file system to be backed up is configured on disks attached to
controllers c1 and c2, and the snapshots are created on disks attached to controllers c3 and c4.
See “Mounting a File System for Shared Access” on page 41 for a description of how to mount a
VxFS file system for shared access by the nodes of a cluster.
See “Using Off-Host Processing to Back Up Cluster File Systems” on page 41 for a description of
how to perform off-host backups of cluster-shared file systems.
Note All commands require superuser (root) or equivalent privileges.