Capacity tier is an additional tier of storage that can be attached to a scale-out backup repository. Applicable data from the scale-out backup repository performance extents can be transported to the capacity tier for long-term storage.
This feature is most useful if:
- You are running out of storage space.
- Your organization policies allow you to store only a certain amount of data on your extents, while the outdated data should be stored elsewhere.
- You seek to store data on several sites to ensure its safety in case of a disaster.
With capacity tier you can:
- Move inactive backup chains to the capacity extent, as described in Moving Inactive Backup Chains to Capacity Tier and Manually Moving Inactive Backups to Capacity Tier.
- Copy new backup files as soon as these files are created, as described in Copying Backups to Capacity Tier.
- Download data that was moved from the capacity extent back to the performance extents, as described in Downloading Data from Capacity Tier.
- Restore your data. For more information, see Data Restore. In particular, you can promptly restore data from capacity tier in case of disaster without creating a scale-out backup repository anew. For more information about this feature, see Importing Object Storage Backups.
The capacity tier consists of only one capacity extent. The capacity extent can be either cloud-based object storage repository or on-premises object storage repository, such as:
- S3-compatible object storage repository
- Amazon S3
- Microsoft Azure Blob Storage
- Microsoft Azure Data Box
- IBM Cloud Object Storage
The capacity extent is displayed in the scale-out backup repository wizard, on the Add Capacity Tier step.
Before you start using the capacity tier, make sure to check the pricing plans of your cloud storage provider to avoid additional costs for offloading and downloading backup data.
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