Troubleshooting

Troubleshooting Backup and Restore Sessions

 

No previous full backup

 

Before performing an incremental backup of an object, Data Protector

 

requires a full backup. Data Protector uses a full backup as a base for

 

comparison to determine which files have changed and consequently

 

need to be included in the incremental backup. If a protected full backup

 

is not available for this comparison, a full backup is performed.

Action

Set the protection for the full backup.

 

The description has changed

 

An object is defined by the client, disk, and description. If any one of

 

these three change, Data Protector considers it as a new object, even if

 

the client and disk are the same, and Data Protector performs a full

 

backup instead of an incremental.

Action

Use the same description for full and incremental backups.

 

The backup owner is different

 

If your backups are configured to run as private, the person starting the

 

backup is the owner of the data. For example, if USER_1 performs a full

 

backup and USER_2 tries to start an incremental backup, the

 

incremental backup will be executed as a full backup. This is because the

 

data for USER_1 is private and cannot be used as a base for the

 

USER_2's incremental backup.

Action

Configure backup session Ownership in the Advanced Backup Options

 

for the backup specification. The backup owner should be a user from the

 

Admin user group. This will make all backups owned by this user,

 

regardless of who actually starts the backup session.

Unexpected Mount Request for a Standalone Device

There are several situations, described below, that may cause Data Protector to issue a mount request for a standalone device while media are available in the backup device.

The media in the device are in a media pool that has the Non

Appendable policy

Even though there is still available space on the media, the media will not be used because of the Non Appendable policy of the pool.

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HP B6960-90078 manual Unexpected Mount Request for a Standalone Device, No previous full backup, Description has changed