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Frequently Asked Questions - OnePass for NetApp

Table of Contents

Why am I unable to see the Disk Cleanup tab in the Subclient Properties dialog box?

By default, Enable archiving with these rules option is not enabled at the subclient level. Once you enable the option, only incremental and synthetic full backups can be run and the data that meets the archiving rules are archived. When you clear the option, the archiving rules are not applied and the files are backed up and not archived.

Why do subsequent backups after a full backup run in incremental mode?

Once you enable the Enable archiving with these rules check box, you can run only incremental and synthetic full backups. However, if Full backups are not available for the subclient, then the first backup is automatically converted to a full backup.

Why do I only see stubs and not the data files for the archived files during restore?

You only see stubs and not data files for the archived files during restore because the stubs are also backed up during the archiving job.

To restore the data file:

  1. From the CommCell Browser, expand Client Computers > client > File System.
  2. Right-click the appropriate backup set, point to All Tasks, and then click Browse and Restore.
  3. In the Browse and Restore options, click View Content.
  4. Select the data to restore and click Recover All Selected.
  5. If you wish to restore the backed up data which may be stubbed, select Restore data instead of stub.
  6. You can monitor the progress of the restore job in the Job Controller or Event Viewer window of the CommCell Console.
  7. Once job is complete, view the details of job from the Restore History.
  8. Right-click the appropriate backup set, point to View, and click Restore History.
  9. Click OK.
  10. Right-click the job and select View Job Details.

Can I erase data from a backup?

Yes. You can erase data from a backup job using the File System End-User feature. For more information, see File System End-User Erase - Overview.

How do I recover deleted stubs?

Deleted stubs can be recovered using the following methods:

Case 1: If the stubs that were deleted have not yet reached the expiration date set at Retention tab, you can recover the stubs by performing a Browse and Restore operation from the latest synthetic full backup. To restore data, navigate to the location the stubs are restored and perform a stub recovery.

Case 2: If stubs are deleted and aged, but data is still available in the media, you can restore them by performing the method described in Recovering Pruned and Deleted data.

Can I continue my archive and recovery operations if my proxy machine is down? If yes, then how can I switch the proxy client for a subclient?

Yes. You can continue your archive and recovery operations by switching the proxy client to an available machine where the File System Agent is installed using the following steps:

  • From the CommCell Console, navigate to Client Computers | <NAS client> | File System.
  • Right-click the File System | Properties.
  • Select the Archive Properties tab and change the primary client and the secondary client.
  • You can continue your backup and restore operations with the new proxy client.

    If you want to recall stubs, before performing a backup operation with the new proxy client then restart the Commvault Client Manager Service on your computer.

How do I extend the retention on my deleted Stubs?

Follow the steps given below to extend and reset your retention criteria:

  • From the CommCell Console, navigate to Client Computers | File System.
  • Right-click the Subclient and click Properties.
  • Select Retention tab.
  • Select and enter the number of days for which you want to keep the deleted items in the backup cycle after their deletion.
  • Click OK.

Can I use different Impersonate NT user credentials for different subclients?

Yes. You can use different Impersonate NT User credentials for different subclients.

Will my system files get archived if I backup my root volume?

No, backing up your root volume will not archive the system files. During backup of your entire client machine, system files are automatically excluded.

Why do the number of files backed up is more than the total number of files in a folder?

If any files in the folder meet the stubbing rules, the stubs for those files are backed up along with the file. Therefore, the number of files backed up is more than the total number of files in a folder.

Why are the stubs skipped for backup when the ACLs or streams are modified?

When the ACLs/streams are altered the archive bit of the stubs do not change and the backup operation for the stubs completes successfully . When the archive bit for the stubs are turned off, and the ACLs/Streams are modified the incremental backup job performed with the Classic Scan and Check archive bit during backups options enabled, will skip these stubs during the backup operation.

The data and stubs are shown as different versions. How is the version information displayed for my backed up data?

The version information can be viewed using the following steps:

  • From the CommCell Browser, navigate to Client Computers | <Client> | File System.
  • Right-click the backup set that contains the data you want to restore and click All Tasks | Restore.
  • Click View Content.
  • Navigate to the file for which you need the version information displayed.
  • Right click the file and select View all Versions.

Alternately you can also perform the following:

  • From the CommCell Browser, navigate to Client Computers | <Client> | File System.
  • Right-click the backup set that contains the data you want to restore and click Find.
  • Click View Content.
  • Navigate to the file for which you need the version information displayed.
  • Right click the file and select View all Versions.

If I run a synthetic full backup operation with the Check for deleted stubs option selected, will the whole file server be scanned?

No. A synthetic full backup operation performed with the Check for deleted stubs option selected will scan the contents of all the subclients and not the entire file server.

Can I use default subclient to perform backup and archiving of files and folders on a file server?

Yes. You can configure the default subclient to backup and archive files and folders on a file server. By default, the default subclient has the root directory (\) as the content of a subclient. If I run a backup job for the default subclient, all the shares on the file server will get backed up. Ensure that the user account, which you have entered in the Impersonate NT User dialog box while adding content to the default subclient, has permissions to perform the share enumeration for all the shares on the file server.

Why does my data gets restored as flat file?

If the backup data contains sparse files and the allocation range of the sparse files were not set during the backup, then your data is restored as a flat (unstructured) file. You must enable the SendOptSparseAllocRanges additional setting to backup and restore the allocation ranges of the sparse files.

Can I delete a job from the storage policy copy?

Yes. You can delete a job from the storage policy copy provided it is not a part of the latest backup cycle. Make sure that the job from the latest backup cycle is not deleted as it will result in the subsequent synthetic full backup to run into issues.

How can I erase stubs completely?

You can erase stubs and copies of stubs that were moved around using the following steps:

  1. Manually delete the stubs and copies of stubs from the disk.
  2. Right click the File System Agent, point to All Tasks and click Erase Data by Browsing. Make sure that the paths of the stubs are browsed and deleted in this operation.
  3. It is highly recommended to run a Synthetic Full backup following this operation. This will make sure that the paths pertaining to the stubs are dropped and are not picked up in the subsequent backup cycles.

How can I recall stubs if encryption via pass-phrase is enabled at the client level?

If encryption via pass-phrase is enabled at the client level, follow the steps given below prior to running a stub recall:

  1. From the CommCell Console, right-click the <Client> and click Properties.
  2. Click Advanced and then click the Encryption tab.
  3. Click Export to export the pass-phrase to the proxy computer.
  4. Enter the pass-phrase and click Export.
  5. Click OK.

My full backup operation is deleted and I am unable to perform full or synthetic full backup. How can I continue to back up and archive my data?

For OnePass, the first backup job performed on any subclient is a full backup and subsequent backups are incremental. Since you cannot run full backups on the existing subclient and cannot create another subclient in the same backupset with the same content, you can create a new backupset and a new subclient with the same content that was a part of the deleted backup job . You can continue to back up and archive data using this new subclient.

What gets restored when I perform a Restore by Jobs operation with Restore Data Only option selected?

When you perform a Restore by Jobs operation with Restore Data Only option selected for a backup job that backed up the data for the stubs, the data will be restored. If the backup job backed up only the stubs, then the data will not get restored.

How can I view the number of failed objects for an archive job?

You can view the number of failed objects for an archive job using the following methods:

  1. Double-click the archive job and view the details in the Job Details dialog box.
  2. Right-click the archive job and point to View Failed Items.

Note that in the subsequent archive operations after the first full backup, number of objects shown as failed may be higher than the number of objects that actually failed.

Can I perform stub recalls or stub pruning using File Share Archiver client?

Yes. You can perform stub recalls or stub pruning on NetApp file server using File Share Archiver Client provided Fpolicy is disabled on the file server.

How do I set up end-user recalls for the various file servers?

End-user recalls are setup as follows for the various file servers.

Hitachi HNAS (BlueArc) or Isilon

Celerra

NetApp

Each computer from where end-user recalls will be performed must have File Share Archiver Client, Explorer Plug-In, or Driver for File Archiver installed on it. For Celerra file servers, you must setup web access using the Web Server and Web Console.

This is described in

Deployment – Setting Up Web Access - OnePass for Celerra

For more information, see Data Protection for NFS Shares, CIFS Shares, and UNC Paths.

Why is the "View All Versions" value less than the number of file versions retained after a synthetic full backup?

When the Keep n Previous Versions option is enabled from the Subclient Properties > Retention tab, the number of previous file versions that appears in View All Versions from the CommCell® Console might be less than the number of versions that are retained by a synthetic full backup. This happens when the same, unmodified file is backed up more than once. The View All Versions value considers multiple instances of the same file as a single version, but the Keep n Previous Versions option will consider multiple instances of the same file as separate versions and retain the specified number of versions of a file during a synthetic full backup.

Can I choose to only backup and not archive the data residing on the file server?

Yes. If you want your subclient content to be backed up and not archived, do not select the Enable Archiving with these rules option in the Disk Cleanup tab of the Subclient Properties dialog box.

Is it mandatory to have a deduplication-enabled storage policy for OnePass?

No. It is not mandatory to have a deduplication-enabled storage policy for OnePass. However, if you plan to use a deduplication-enabled storage policy, make sure that you enable Enable DASH Full option in the Deduplication | Advanced tab of the Copy Properties dialog box.

Can I use tape media to store the data from the primary storage copy?

Yes. You can use tape media to store the data from the Primary Storage Copy. However, we recommend using disk media because OnePass allows only incremental and synthetic full backup jobs (after the first full backup job), and for synthetic full backup jobs, you must ensure that all the tapes are present before starting a backup job.

What happens when I change my subclient content after a few backups?

After a few backups, when you change your subclient content, the older content is considered as a deleted item. When you perform a synthetic full, the data (older content) that meets the retention criteria are dropped from the backup cycle.