Defining a backup strategy before creating your backups ensures that you have backups to successfully restore your databases. SnapManager provides flexible granular backup schedule to meet your Service Level Agreement (SLA).
SnapManager supports two modes of backups:
|Online backup||Creates a backup of the database when the database is in online state. This backup mode is also called a hot backup.|
|Offline backup||Creates a backup of the database when the database is either in a mounted or shutdown state. This backup mode is also called a cold backup.|
SnapManager supports three types of backups:
|Full backup||Creates a backup of the entire database, which includes all the datafiles, control files, and archive log files.|
|Partial backup||Creates a backup of selected datafiles, control files, tablespaces, and archive log files|
|Archive log-only backup||Creates a backup of only the archive log files.
You must select Backup Archivelogs Separately while creating the profile.
SnapManager creates backups based on whether the database profile separates the archive log backups from the data file backups.
|A single database profile for combined backup of data files and archive logs||Allows you to create:
|Separate database profiles for archive log backups and data file backups||Allows you to create:
The Snapshot copy naming convention can be changed during or after the creation of a profile. The updated pattern applies only to Snapshot copies that have not yet been created; existing Snapshot copies retain the previous pattern.
A backup retention policy specifies the number of successful backups to retain. You can specify the retention policy while creating the policy.
You can select hourly, daily, weekly, monthly, or unlimited as the retention class. For each retention class, you can specify the retention count and retention duration, either together or individually.
For example, if backup schedule is daily and retention count is 10, then 10 daily backups are retained.
For example, if backup schedule is daily and retention duration is 10, then 10 days of daily backups are retained.
If you use SnapMirror or SnapVault, you can verify backup copies using the Snapshot copy on the SnapMirror or SnapVault destination volume rather than the Snapshot copy on the primary storage system. Using a destination volume for verification reduces the load on the primary storage system.