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Advanced Backup

Table of Contents

Full Backups

Incremental Backups

Differential Backups

Synthetic Full Backups

Scheduling a Backup

Managing Jobs

Additional Options

Full Backups

Full backups provide the most comprehensive protection of data. To perform a full backup:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. In the <Backupset>tab, right-click <Subclient>, and then click Backup.
  3. In the Backup Options dialog box, select Full.
  4. Click OK.

    In the Job Controller tab, you can track the progress of the job. When the backup has completed, the Job Controller displays Completed.

Incremental Backups

An incremental backup contains only data that is new or has changed since the last backup, regardless of the type. On average, incremental backups consume less media and use less resources than full backups. 

The illustration clarifies the nature of full and incremental backups.

Follow steps given below to perform an incremental backup:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. In the <Backupset> tab, right-click <Subclient>, and then click Backup.
  3. In the Backup Options dialog box, select Incremental.
  4. Click OK.

    In the Job Controller tab, you can track the progress of the job. When the backup has completed, the Job Controller displays Completed.

Differential Backups

A differential backup contains only the data that is new or has been changed since the last full backup. Differential backups consume less media and use less resources than full backups. Differential backups are cumulative. This means that each differential backup contains all changes accumulated since the last full backup. Each successive differential backup contains all the changes from the previous differential backup.

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. In the <Backupset> tab, right-click <Subclient>, and then click Backup.
  3. In the Backup Options dialog box, select Differential.
  4. Click OK.

    In the Job Controller tab, you can track the progress of the job. When the backup has completed, the Job Controller displays Completed.

Synthetic Full Backups

A synthetic full backup is a synthesized backup, created from the most recent full backup and subsequent incremental and/or differential backups. The resulting synthetic full backup is identical to a full backup for the subclient.

Unlike full, incremental, and differential backups, a synthetic full backup does not actually transfer data from a client computer to the backup media. Therefore, they do not use any resources on the client computer.

Synthetic full backups are media-based; they read backup data from one media and simultaneously write (restore) the result to the new active media within the same media group. As a result, synthetic full backups require that at least two media drives for the same storage policy be available at the time the job is started. Synthetic full backups cannot be performed on subclients where the storage policy is associated with a stand-alone drive.

Running Synthetic Full Backups

Synthetic full backups can either be started manually or scheduled to occur at regular intervals.

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. In the <Backupset>tab, right-click <Subclient>, and then click Backup.
  3. In the Backup Options dialog box, select Synthetic Full.
  4. Click OK.

    In the Job Controller tab, you can track the progress of the job. When the backup has completed, the Job Controller displays Completed.

Verifying Synthetic Full Backups

This option ensures that files that have not been backed up by incremental jobs since the last full backup are backed up by the next incremental.

For example, if you perform the conventional full backup only once for a given subclient and then perform incremental (or differential) backups and periodic synthetic full backups. After the conventional full backup, a file is added to the subclient and the file has a time stamp older than the time of full backup. In this case, the file will never be backed up. Eventually, such files might be pruned and no backup of such  files will be available.

The illustration explains the need to verify synthetic full backups.

In order to overcome this problem, periodically verify the synthetic full backups job.

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. In the <Backupset>tab, right-click <Subclient>, and then click Backup.
  3. In the Backup Options dialog box, select Synthetic Full.
  4. Click Advanced.
  5. In the Advanced Backup Options dialog box, click the Data tab.
  6. Select Verify Synthetic Full. Click OK to close the Advanced Backup Options dialog box.
  7. Click OK.

Accelerated Synthetic Full Backups (DASH Full)

When a storage policy copy is deduplicated, synthetic full backups can be created in an accelerated mode to significantly reduce the copy duration. This is done by identifying and transferring the data signatures (instead of the data itself) to the target wherever possible.

To enable DASH full on a storage policy copy, see Modifying a Storage Policy Copy Deduplication Settings.

Scheduling a Backup

Follow the steps below to schedule a backup:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. In the <Backupset>tab, right-click <Subclient>, and then click Backup.
  3. In the Backup Options dialog box, select Schedule, and then click Configure.
  4. In the Schedule Name box, enter a name for the schedule, and then select the appropriate scheduling options.

    For example:

    Select Weekly, and then change the Start Time to 9:00 PM.

  5. Click OK to close the Schedule Details dialog box.
  6. Click OK to close the Backup Options dialog box.
  7. The backup job will execute according to the options that you selected.

Managing Jobs

Configure Job Restartability for an Individual Job

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. In the <Backupset>tab, right-click <Subclient>, and then click Backup.
  3. Click Advanced.
  4. In the Advanced Backup Options dialog box, click the Job Retry tab.
  5. Select Enable Total Running Time and specify the maximum elapsed time before a job can be restarted or killed.

    Select Kill Running Jobs When Total Running Time Expires to kill the job after reaching the maximum elapsed time.

  6. Select Enable Number Of Retries and specify the number of retries.
  7. Click OK.
  8. Click OK to close the Backup Options dialog box.

Controlling Jobs

The following controls are available for running jobs in the Job Controller window:

Suspend

Temporarily stops a job. A suspended job is not terminated; it can be restarted at a later time.

Resume

Resumes a job and returns the status to Waiting, Pending, Queued, or Running. The status depends on the availability of resources, the state of the Operation Windows, or the Activity Control setting.

Kill

Terminates a job.

Suspending a Job

  1. From the Job Controller of the CommCell Console, right-click the job and select Suspend.
  2. The job status may change to Suspend Pending for a few moments while the operation completes. The job status then changes to Suspended.

Resuming a Job

  1. From the Job Controller of the CommCell Console, right-click the job and select Resume.
  2. As the Job Manager attempts to restart the job, the job status changes to Waiting, Pending, or Running.

Killing a Job

  1. From the Job Controller of the CommCell Console, right-click the job and select Kill.
  2. Click Yes when the confirmation prompt appears if you are sure you want to kill the job. The job status may change to Kill Pending for a few moments while the operation completes. Once completed, the job status will change to Killed and it will be removed from the Job Controller window after five minutes.

Additional Options

The following table describes the available additional options to further refine your backup operations:

Option

Description

Related Topics

Startup Options

The Startup Options are used by the Job Manager to set priority for resource allocation. This is useful to give higher priority to certain jobs. You can set the priority as follows:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and click Startup tab.
  4. Select the Change Priority checkbox.
  5. Enter a priority number - 0 is the highest priority and 999 is the lowest priority.
  6. Select the Start up in suspended State check box to start the job in a suspended state.
  7. Click OK.

Refer to Job Priority and Priority Precedence. 

Alerts

This option enables users or user groups to get automatic notification on the status of the data protection job. Follow the steps given below to set up the criteria to raise notifications/alerts:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and select the Alert tab.
  4. Click Add Alert.
  5. From the Add Alert Wizard dialog box, select the required threshold and notification criteria and click Next.
  6. Select the required notification types and click Next.
  7. Select the recipients and click Next.
  8. Click Finish.
  9. Click OK.

Refer to Alerts.

Command Line Backups

Command Line Interface enables you to perform backups or restore from the command line. The commands can be executed from the command line or can be integrated into scripts.

You can also generate command line scripts for specific operations from the CommCell Browser using the Save As Script option.

Refer to Command Line Interface.

CommCell Readiness Report

The CommCell Readiness Report provides you with vital information such as connectivity and readiness of the Client, MediaAgent, and CommServe. It is useful to run this report before performing a backup or a recovery operation. Follow the steps given below to generate the report:

  1. On the CommCell Console menu bar, select the Reports tab.
  2. Click Readiness.

    The Report Selection dialog box appears.

  3. If necessary, select Reports | CommServe | CommCell Readiness in the left pane.
  4. Select the Computers tab, and then click Modify below the Computers list.
  5. In the dialog box that appears, clear Include All Client Computers and All Client Groups.
  6. Select the appropriate client from the Exclude list, and then click Include >.
  7. Click OK.
  8. Select the MediaAgent tab, and then clear Include All MediaAgents.
  9. Select the appropriate MediaAgent from the Exclude list, and then click Include >.
  10. Click Run.

    The report appears in your default Web browser.

Refer to CommCell Readiness Report.

Backup Job Summary Report

The Backup Job Summary Report provides you with information about all of the backup jobs that are run in last 24 hours for a specific subclient. You can get information such as status, time, data size, and so on for each backup job. It is useful to run this report after performing the backup. Follow the steps given below to generate the report:

  1. On the CommCell Console menu bar, select the Reports tab.
  2. Click Summary.

    The Report Selection dialog box appears.

  3. If necessary, select Reports | Jobs | Job Summary in the left pane.
  4. On the General tab, select Data Management.
  5. Select the Computers tab.
  6. Select Subclient, and then select the Edit sub tab.
  7. Navigate to Client Computers | <Client> | File System | Backup Set | <Subclient>.
  8. Click Run.

    The report appears in your default Web browser.

Refer to Backup Job Summary Report.

Data Path Options

Data Protection operations use a default Library, MediaAgent, Drive Pool, and Drive as the Data Path. You can use this option to change the data path if the default data path is not available. Follow the steps given below to change the default data path:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and select the Data Path tab.
  4. Select the MediaAgent and Library.
  5. Select the Drive Pool and Drive for tape library.
  6. Click OK.

Refer to Change Data Path.

Start New Media

The Start New Media option enables you to start the data protection operation on a new media. This feature provides control over where the data physically resides. Use the following steps to start the data protection operation on a new media:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and select the Media tab.
  4. Select the Start New Media check box.
  5. Click OK.

Refer to Start New Media.

Mark Media Full on Success

This option marks the media as full, two minutes after the successful completion of the data protection job. This option prevents another job from writing to this media. Follow the steps given below:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and select Media tab.
  4. Select the Mark Media Full on Success check box.
  5. Click OK.

Refer to Export Media.

Allow Other Schedules To Use Media Set

The Allow Other Schedules to use Media Set option allows jobs that are part of the schedule or schedule policy and using the specific storage policy to start a new media. It also prevents other jobs from writing to the same set of media.

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and select the Media tab.
  4. Select the Allow Other Schedules To Use Media Set check box.
  5. Click OK.

Refer to Creating an Exportable Media Set.

Extended Data Retention

This option allows you to extend the expiration date of a specific job. This will override the default retention set at the corresponding storage policy copy. Follow the steps given below to extend the expiration date:

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and select the Media tab.
  4. Select one of the following options:
    • Infinite - Select this option to extend the expiration date by infinite number of days
    • Number of day - Select this option to specify the number of days to extend the expiration date and then enter the number of days.
  5. Click OK.

Refer to Extended Retention Rules.

Vault Tracker

This feature provides the facility to manage media that is removed from a library and stored in offsite locations. Depending on your Vault Tracker setup, select the required options. Use the following steps to access and select the Vault Tracker options.

  1. In the CommCell Browser, expand Client Computers | <Client> | Notes Documents | <Partition> |< Backupset>.
  2. Right-click the Subclient in the right pane and click Backup.
  3. Click Advanced and select the Vault Tracking tab.
  4. Select the required options.
  5. Click OK.

Refer to Vault Tracker.

Last modified: 8/28/2018 5:30:43 AM