Advanced data protection add-on for Keystone
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You can subscribe to the advanced data protection (ADP) add-on service with your Keystone STaaS subscription. While standard Keystone services include default data protection using SnapMirror, SnapVault, and Snapshot, this add-on service uses NetApp MetroCluster technology to ensure efficient data protection of your mission-critical workloads with a recovery point objective (RPO) of 0.
Keystone advanced data protection service can synchronously mirror data to a secondary site. In case of a disaster at the primary site, the secondary site can take over, without any loss of data. This feature uses the MetroCluster configuration between two sites to enable data protection. You can use the advanced data protection add-on services for only your file and block storage services. As a part of this add-on service, the Advanced Data-Protect performance service level is assigned to your subscription.
You can monitor consumption and health metrics for your MetroCluster configuration. For more information, see View consumption and health of your MetroCluster subscriptions.
Understand pricing
The advanced data protection add-on service is priced based on the committed capacity at each site. This helps determine the actual cost of advanced data protection service in $/TiB. The add-on charges apply to all capacities in your subscription, including source data, mirrored copies, and unmirrored data.
For the MetroCluster configuration, each site requires its own subscription, and you are charged for the committed capacity at each site independently.
Note the following:
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The service uses 100% of the committed capacity on associated storage as committed capacity.
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Charges apply to both primary and secondary sites, covering both source and destination clusters.
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Charges apply only to your file and block storage services.
Supported MetroCluster configurations
Keystone supports the following MetroCluster deployment scenarios:
- Active/Passive configuration
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In this configuration, primary data at one site is mirrored to a secondary site. For example, if 100 TiB of logical data is consumed at site A, it is replicated to site B. Both sites require identical subscriptions:
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Subscription 1 (site A): 100 TiB storage service + 100 TiB ADP
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Subscription 2 (site B): 100 TiB storage service + 100 TiB ADP
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- Active/Active configuration with full mirroring
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In this configuration, both sites host primary data that is mirrored bidirectionally. For example, 100 TiB of primary data at site A is mirrored to site B, and 100 TiB of primary data at site B is mirrored to site A. Both sites require subscriptions for the combined capacity:
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Subscription 1 (site A): 200 TiB storage service + 200 TiB ADP
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Subscription 2 (site B): 200 TiB storage service + 200 TiB ADP
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- Active/Active configuration with partial mirroring
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In this configuration, one site hosts mirrored data while the other site hosts both mirrored and unmirrored data. For example, 100 TiB of primary data at site A is mirrored to site B, while site B also hosts an additional 100 TiB of unmirrored data. The subscriptions differ based on the capacity at each site:
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Subscription 1 (site A): 100 TiB storage service + 100 TiB ADP
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Subscription 2 (site B): 200 TiB storage service + 200 TiB ADP
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The following diagram shows these supported MetroCluster configurations:
