Job Destination Options for File Backup

Catalogic DPX offers a variety of source options for File backup. All of them are available from both interfaces, but the access thereto may slightly differ. See details for each interface below.

To access the job destination options, do the following:

  1. Go to Job Manager in the sidebar.

  2. Open an already existing backup job. Or create a new File backup job, by clicking the New Backup Job button in the upper right corner and then selecting Backup Type File.

  3. Go to the Advanced Options section at the bottom (scroll down if necessary) and expand it. Click any of the following section headers to expand it. Each field and the available choices are explained below.

Note. The Advanced Options section in the web interface also includes job source options which are discussed in a separate section for the sake of clarity. See Job Source Options for File Backup.

Note. All three sections, i.e. Base, Incremental and Differential Backup Job Destination Options, feature exactly the same options, only referring to different backup types. For more information, see Differential and Incremental Backups.

Backup Job Destination Options

Tape Usage

Determines whether or not to accept a tape with data on it.

Unlabeled Tape Usage

Determines expected behavior when an unlabeled tape is found in the tape drive.

Mark Original Offsite

Determines whether a backup tape is stored offsite. DPX adds the Offsite status to the tape.

Append Offsite

Determines if a backup tape with status Offsite can be appended to.

The Offsite status of a tape can be viewed through the Operate Tape Library function, the Configure Media function, or in the media volume report. Note that when you use the Operate Tape Library function to import a tape with status Offsite, the Offsite status is cleared and the tape becomes available for use.

Twin Tapes

Enables the twinning option. The twinning option creates two sets of backups simultaneously, eliminating the need for separate tape duplication for off-site vaulting.

Mark Twin Offsite

Indicates in the Catalog the location of twinned tapes, if twinning is on.

Tape EOJ Usage

Determines what to do with the tape when the backup job is complete.

Attention! In some cases, a backup job may fail if the Export option is used for the first job following a system restart, especially if the initial job is a File backup with the Export setting.

Checksum Files

Generates a checksum value for each file that is backed up. The checksum value is written to the SIDF header.

Performance Options

Indicates the desired performance option. This option helps control the number of tasks running concurrently within a backup job. The appropriateness of each selection depends upon the backup you are running.

Split Size [MB]

Sets a threshold for file splitting. File splitting is the ability to split a file into smaller pieces and back up those pieces simultaneously. File splitting is designed for large files or raw partitions. If Split Large Files/Partitions is selected in Performance Options and the file exceeds the size entered here, the file splits automatically. If the file does not exceed the size entered here, the file does not split. Keep the threshold large enough (2 GB) so that file splitting is reserved for truly large files.

Note. This option applies only to UNIX systems. It is not available for Windows.

Concurrency Per Device

Sets the maximum number of tasks that can have files backed up to a single device. The default is 1.

Note. Increasing concurrency to values >1 during backups slows restore performance and requires more memory on the master server during restore.

Max. Devices

Limits the number of storage devices valid for use with this job. Use this option if you want to stop DPX from using all the drives in the selected device cluster so that some drives will be available for other purposes.

Min. Devices

Holds tasks within a job until the number of drives specified are available for each task to use.

Tape Mount Attempts

The maximum number to check a tape in a standalone tape device.

Mount Interval [Seconds]

The number of seconds to wait between checking the availability of a tape in a standalone tape device.

Early Device Release

Controls tape drive usage.

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