Configuring a Data Store
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|SEP AG has discontinued support for SEP sesam version 4.4.3 Tigon (V1 and V2). Instructions are still available for these SEP sesam products, however, SEP AG accepts no responsibility or liability for any errors or inaccuracies in the instructions or for the incorrect operation of obsolete SEP sesam software. It is strongly recommended that you update your SEP sesam software to the latest version.|
Data store is a device type used for writing the savesets directly on one or several configured storage locations – into the file system. Data store configuration consists of specifying data store capacity and high watermark (HWM) (note that low watermark is obsolete as of v. 4.4.3 Beefalo). The default data store type is Path, also available are SEP Si3 deduplication store and (depending on version) NetApp Snap Store, HPE StoreOnce and HPE Cloud Bank Store
From the Store type drop-down list, select Path. Skip the Messages section, which is used by SEP sesam to display the last executed action.
|When configuring any other store type than Path, e.g., Si3 deduplication store, HPE StoreOnce or HPE Cloud Bank Store, you should be aware of the requirements and recommendations before you start using these special data store types. For details, see Configuring Si3 Deduplication Store, NetApp Snap Store, HPE StoreOnce, and HPE Cloud Bank Store, respectively.|
Segment Drive Parameter
|It is recommended to use the option Create second drive for both data store types (Path and Si3). Without it, SEP sesam can only allocate a drive either for reading or writing, running one job at a time on the same drive. By using the additional dedicated drive for restore, you are able to run a backup on the first drive and restore your data from the second drive simultaneously. You can also add a third drive for migration.|
- Note that any additional drive dedicated for restore or migration must have the access mode set to read in the Drive properties.
- When using additional drives, all backup jobs must be configured to use the drive dedicated for backup. You specify the drive number for a backup job as described in Creating a Backup Event.
- In case you use the additional drive for migration, you have to specify the dedicated drive as described in Creating a Migration Task.
- You can configure the number of streams per drive. This enables you, for example, to limit the number of parallel backups to 5, but use a higher number of concurrent streams for migration.
When using the Browse button to select the folder, the New data store information window appears with predefined recommended values for your data store size. Click OK to confirm the selected location and the recommended size values. You can modify your data store size later under the Size properties (see step 12). For details on how the size is calculated, see How do I calculate the data store capacity.
- Capacity: The size (in GB/GiB) of the partition for backups.
- High watermark: The value (in GB/GiB) for the high watermark (HWM). The HWM defines the upper value for used disk space. When this value is reached, a data store purge process is started for all EOL-free savesets, thus freeing up the capacity of the data store.
- Low watermark (LWM): Obsolete as of v. 4.4.3 Beefalo, relevant only for previous versions of SEP sesam.
|In previous versions of SEP sesam (≤ 22.214.171.124 Tigon), if HWM was set and exceeded, backups could no longer be started while running backups were allowed to finish. Purging is done until the low watermark is reached (if set). This behaviour has changed with SEP sesam v. ≥ 126.96.36.199 Tigon V2; if HWM is set, exceeding it will only issue an information message but will no longer prevent backups to be started.|
Segment (read-only) Disk Space Usage
The Disk space usage properties are used by SEP sesam to report the following:
- Used: Total used space (Gib/Tib) on the partition.
- Total: Maximum available space (Gib/Tib) on the partition as reported by the operating system.
- Free: Available disk space (Gib/Tib) for SEP sesam.
- Deduplication rate: If applicable. The deduplication ratio is depicted as ratio:1.
Creating a media pool
Once you set up your backup strategy, you can back up your data to your new media pool. You can start a configured backup task immediately or schedule it to run after you have created a schedule and linked a backup event to it. For details, see Creating a Schedule and Creating a Backup Event.
If you want to start the backup task immediately, right-click the name of the backup task and click Immediate start. Note that you only need to select the appropriate media pool referring to your data store and click Start.