About the backup and restore of compressed files on VxFS file systems

NetBackup can back up and restore VxFS-compressed files, maintaining the compression state when the target volume supports file system compression. Future releases will expand this capability to other file systems.

Upon backup of files on a VxFS file system, a message displays in the Activity Monitor whenever NetBackup encounters a compressed file:

Compress flag found for 'file_name'.

Upon restore, NetBackup restores the files to a VxFS file system in their compressed form.

If the restore is to a non-VxFS file system, NetBackup restores the files in an uncompressed form. The following message displays in the Progress tab of the Backup, Archive, and Restore client interface:

File 'file_name' will not be restored in compressed form. Please refer to the Release Notes or User Guide.

The message appears only for the first file that cannot be restored in its compressed form.