Alternate client backup requirements

Before you configure a policy for alternate client backup, make sure the following have been done:

The client data must be configured as required by the snapshot method. The alternate client must have access to the snapshot devices (such as clones, mirrors, or replication disks).
For the FlashSnap and VVR snapshot methods, the following must be installed: VxVM 3.2 or later for UNIX, VxVM 4.0 or later for Linux and AIX, or VxVM 3.1 or later for Windows. Also, volumes must be configured over the primary host's disks. The VxVM FlashSnap or VVR license must also be installed.
User and group identification numbers (UIDs and GIDs) for the files to back up must be available to the primary client and the alternate client.
Alternate client backup on Windows does not support incremental the backups that are based on archive bit. Instead, use incremental backups that are based on timestamp.
The primary client and alternate client must run the same version of NetBackup. For example, the use of a later version of NetBackup on the primary client and an earlier version on the alternate client is not supported.
The primary client and alternate client must run the same operating system, volume manager, and file system. For each of these I/O system components, the alternate client must be at the same level as the primary client, or higher level.
Table: Alternate client requirements lists the supported configurations.

Table: Alternate client requirements

If primary client is:	Alternate client must be:
Windows	Windows, at same level as primary client or higher
Solaris	Solaris, at same level as primary client or higher
HP	HP, at same level as primary client or higher
AIX	AIX, at same level as primary client or higher
Red Hat	Red Hat, at same level as primary client or higher
SUSE	SUSE, at same level as primary client or higher
VxFS 3.4 or later (VxFS 3.3 for HP, VxFS 4.0 for AIX and Linux)	VxFS, at same level as primary client or higher
VxVM 3.2 or later (UNIX) VxVM 3.1 or later (Windows)	VxVM, at same level as primary client or higher. Note: For the VVR method, the alternate client must be at exactly the same level as primary client. For VxVM on Windows, use VxVM 3.1 or later with all the latest VxVM service packs and updates. See Configuring alternate client backup.