## Storage

In Active Backup for Business > Storage, you can monitor the status and storage usage of each shared folder when there is at least one backup task. You can also retrieve the existing data and task settings of Active Backup for Business by relinking the shared folders in this page.

#### To view the status and storage usage of each shared folder:

Click Storage. The following information of each shared folder will be displayed:

- Running tasks: Whether there is any running backup task.
- Device count: The number of backed-up devices in this shared folder.
- Global deduplication ratio: The number calculated from original source data size divided by actual stored data size. For example, the original source data is 100GB which is also written to the disk, and then only 80GB data are stored on Synology NAS after deduplication. Then the deduplication ratio will be 100GB / 80GB = 1.25x. For the second backup with CBT, only changed data will be added instead of adding the whole data size again. If the transferred size of changed data is 10GB and 5GB data are stored on Synology NAS in the second backup, the deduplication ratio will be (100+10) / (80+5) = 1.29x.
- Freeable space: The storage space will be freed when the unused space reaches the value which was set in Settings > Settings.

#### To retrieve the existing data and task settings of Active Backup for Business:

According to 3-2-1 backup strategy (create 3 copies of your data, 2 of which are on different storage mediums, and 1 of which should be kept in another location), you are recommended to create copies of the data of Active Backup for Business. When an IT disaster strikes, you can recover the data and task settings of Active Backup for Business and keep backing up or restoring your devices by relinking data.

1. Please make sure there is a shared folder containing data and task settings of Active Backup for Business in the Synology NAS where you would like to recover Active Backup for Business.

Note: Only the shared folders containing the data backed up by Active Backup for Business 2.0.4 and later versions can be displayed and relinked.

2. In Storage, click Relink.

The below information of the shared folder which contains the data and task settings of Active Backup for Business will be displayed:

- The name of the shared folder.
- Last backup time: The last time when you backed up your data to this shared folder.
- Source device: The device which have been backed up.
- Task name: The name of the backup task contained in this shared folder.

3. Select the shared folder containing the data and task settings of Active Backup for Business you would like to recover and click Relink.

#### Note:

- You can choose either of the following packages on DSM to create copies of the data and task settings of Active Backup for Business.

- Snapshot Replication: Snapshot Replication helps you copy your data to another Synology NAS continuously by taking snapshots of your shared folders. When the recovery is needed, you can install Active Backup for Business and relink the data on another Synology NAS to continue backup and restore tasks immediately. To learn more about Snapshot Replication, please refer to this help article.
- Hyper Backup: Besides backing up shared folders to another Synology NAS, you have more choices of backup destinations via Hyper Backup, such as USB, file servers, and other cloud services. Please make sure that you select the "@ActiveBackup" folder in the ActiveBackupforBusiness shared folder when backing up Active Backup for Business via Hyper Backup. For more information about creating copies of the shared folder, please refer to this help article.