Chapter 10 - Operating the BlackPearl System
Database Backup & Restore
D
ATABASE
B
ACKUP
& R
ESTORE
The BlackPearl system database contains a list of all objects stored on the system cache,
tape, and disk media. Backing up the database allows you to restore the database in the
event of hardware failure. The database backup does not function as a true backup in that it
does not backup or restore objects referenced in the database, only the database itself.
When restoring a database, the system is not aware of any changes to data after creating the
database backup.
• Files that exist in the database, but were deleted after the creation of the database
backup are not restored.
• New files added or modified after the creation of the database backup are still
persisted on a storage medium.
Verify disk pools and tape media so that the database synchronizes with the actual data
present on the system.
Database backups are stored on a bucket on the BlackPearl system, and kept based on the
settings of a preconfigured data policy named “Database Backup”.
Note:
If your BlackPearl system does not contain a tape library, the database backup
policy must be manually created.
If desired, you can modify the settings of the preconfigured data policy, or create a new
data policy for database backups (see
Create a Data Policy on page 125
). If you create a new
data policy, you will need to edit the database backup configuration to use the new policy
(see
Edit Backup Data Policy on page 330
).
Note:
Spectra Logic recommends using the default data policy.
The bucket used for database backups is automatically created when the first backup is
generated, either manually, or on a schedule. The database backup bucket is listed on the
Buckets screen of the BlackPearl user interface with the name “Spectra-BlackPearl-Backup-
system name
-
product serial number
“. This bucket cannot be used for data storage.
Note:
If you change the system name after the database backup bucket is created, the
bucket name does not change.
Backups can be generated manually, or by schedule. When creating a database backup
schedule, you specify how many copies of the database to keep at one time. When the
system generates a backup that exceeds the value configured, the oldest database backup is
automatically deleted.
Note:
The default schedule on the BlackPearl system generates a backup once per day,
and retains a maximum of two backups.
November 2020
User Guide-BlackPearl Converged Storage System
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