SnapProtect - Overview - Infinite Volume Backup Support

Infinite Volume Backup Support adds data protection and recovery support for Vserver with Infinite Volumes using the Windows File System agent to back up CIFS shares, or the UNIX File System agent, to back up NFS exports mounted on a given proxy computer. This feature overcomes the fact that Vserver with Infinite Volume does not support NDMP backups.

It is not recommended to use the NAS agent to protect infinite volumes since there is limited snapshot indexing support and NDMP backups are not supported on Vserver with infinite volume . Read FAQ for more information.

Tape backup

The tape backup support uses the Windows File System agent under NAS/Windows clients to back up UNC paths, or the UNIX File System agent under NAS/UNIX clients to back up mounted NFS exports. The backup job will walk the entire CIFS share or NFS export for each kind of backup to determine the files to protect.

Snapshot backup

The snapshot support uses the Windows File System agent under NAS clients to back up UNC path or the UNIX File System agent under NAS/UNIX clients to back up mounted NFS export. The CIFS share and NFS export are used to look up the volume name on the file server to be snapped.

The first full backup walks the entire CIFS share or NFS export to determine the files to catalog - subsequent backups including full, incremental, and differential backups will get the changed file list from a file server without scanning the CIFS share or the NFS export.

The snapshots can be moved to tape from primary or secondary copies.

This feature can also be used on 7-Mode and Cluster-Mode file servers. Infinite Volume Backup Support does not limit CIFS share or NFS export backups for infinite volumes on Cluster-Mode Vservers.

The Infinite Volume Backup feature uses snapshots from previous backups to successfully complete incremental backup operations.

If both file systems agents (Windows and UNIX) are on a NAS client, the Schedule Policy and the Alerts features are not supported for any of the file system agents. For information on a workaround, see Troubleshooting - No Support for Schedule Policies and Alerts if both Windows and UNIX Coexist on are under a NAS Client.