Backing Up Data › Local Backup Options for UNIX and Linux Agents

Local Backup Options for UNIX and Linux Agents

The following are the local options available when backing up a UNIX or Linux computer using the Client Agent for UNIX or the Client Agent for Linux.

Additional Options

• Traverse Symbolic Link File--Arcserve Backup follows symbolic links and backs up the linked files.
• Traverse NFS--Backs up NFS--mounted drives.
• Traverse Across File System--Arcserve Backup automatically includes locally mounted UNIX file systems in the backup.
• Estimation Off--Disables the estimation of the number of files and the amount of data to be backed up that takes place at the beginning of the backup job. Selecting this option decreases the time it takes to perform the backup.
• Preserve File Access Time--This option directs Arcserve Backup to preserve the last access time of files when a backup is performed.

  Note: The Access Time of a file is automatically updated by the operating system whenever a file is accessed (read or write). However, after a compare is performed, the Access Times of all the backed up files are also updated. Therefore, if you want to track whether or not a file has actually been accessed (and not just compared), you need to preserve the original access time.

  • If this option is selected (check in box), Arcserve Backup preserves the last file access time of any files that are backed as the original value that was present before the backup was performed (Change Time will be updated). This is the default setting.
  • If this option is not selected (no check in box), the last file access time of any files that are backed up is updated to the new value that is present when the backup is completed (Change Time will not be updated).

  Note: For Windows based agents, you must apply this option globally. For more information, see Global Backup Options.

Media format to use for backup

• Arcserve Backup format--This is a Arcserve Backup proprietary tape format. This format is designed to overcome the limitations of tar/cpio formats and leverage other features like compression/encryption provided by Arcserve Backup. For example, there are certain limitations with tar/cpio while backing up large files and huge data that may span across multiple tapes.
• Posix tar format--This is a Standard Posix Tar format. When you select this option, Arcserve Backup creates a backup image in Posix Tar format. Arcserve Backup or any tar utility can be used to restore data from an image created in this format. Using Arcserve Backup format is recommended.
• Posix cpio format--This is a Standard Posix CPIO format. When you select this option, Arcserve Backup creates a backup image in Posix CPIO format. Arcserve Backup or any CPIO utility can be used to restore data from an image created in this format. Using Arcserve Backup format is recommended.

More information:

Global Backup Options

Specify Local Backup Options