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Support matrix for Azure Elastic SAN backup (preview)

This article summarizes the regional availability, supported scenarios, and limitations for Elastic SAN backup (preview).

Supported regions

Backups are available in all Azure Public regions that Elastic SAN supports. Learn more.

Supported and unsupported scenarios for Elastic SAN backup (preview)

Elastic SAN backup has the following supported and unsupported scenarios:

  • Operational-tier backup is supported for Elastic SAN; vault-tier isn't currently supported. So, the security-related settings (immutability, soft-delete, Multi-user authorization, and customer-managed keys) that are applicable for vault-tier aren't supported.

  • Same volume can't be protected multiple times as part of multiple backup instances.

  • Hourly backups aren't supported; only daily backups are available.

  • The Original Location Recovery (OLR) is currently not supported; only Alternate Location Recovery (ALR) is supported.

  • Azure subscription and service limits apply to the total number of disk snapshots per region per subscription.

  • The Backup vault and the volumes to be backed up must be in the same subscription and region.

  • Restoring a volume from backups to the same or a different subscription is supported.

  • For configuration of backup, the Elastic SAN volume and the snapshot resource group (where snapshots are stored) must be in the same subscription. The creation of incremental snapshots for a volume outside its subscription isn't supported. Learn more about incremental snapshots for managed disks.

  • For the backup and restore operations, the Backup vault’s managed identity must have the following roles assigned:

    Operation Role
    Backup - Elastic SAN Snapshot Exporter

    - Disk snapshot Contributor (on the snapshot resource group)
    Restore - Reader (on the snapshot resource group)

    - Elastic SAN Volume Importer

    Note

    • Other roles (such as Owner) aren't supported and might cause permission issues.
    • Role assignments require a few minutes to take effect.

  • You can stop backup and retain backup data indefinitely or as per the backup policy. Deleting a backup instance stops the backup and deletes all backup data.

  • Azure Backup currently supports the following backup and restore limits for Elastic SAN:

    Operation type Limit
    On-demand backup 10 per backup instance per day.
    Restore 10 per backup instance per day.

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