Working with extended storage pools

HCP uses extended storage pools to represent logical groups of storage components that can be used as storage tiers. Each storage pool consists of one or more storage components that are used to access the same type of storage.

Each extended storage pool contains one or more extended storage component access points (mount points, buckets, containers, or namespaces) that are all used to access the same type of extended storage. A given NFS storage pool includes all of the storage that’s allocated to all of the NFS volumes that are accessed using the mount points in the pool. A given Amazon S3, Google Cloud, S3-compatible, Microsoft Azure, Hitachi Cloud Service, or Verizon Cloud storage pool includes all of the storage that’s allocated to the buckets, containers, or namespaces in the pool.

Each storage tier that’s defined for a namespace by its service plan typically consists of only one storage pool, but a tier can be configured to use multiple storage pools. To store objects on a given extended storage tier, HCP uses all of the storage that’s allocated to all of the extended storage component access points (mount points, buckets, containers, or namespaces) that are contained in the storage pools that are configured for the storage tier. Therefore, the capacity of a given extended storage pool is the total amount of space that can be accessed using the extended storage component access points included in the pool. You can add access points to an extended storage pool at any time, thereby increasing the capacity of the pool.

Each extended storage component provides HCP with the information it needs to use one or more mount points, buckets, containers, or namespaces to access and use the storage that’s represented by that extended storage component. However, HCP can actually use the storage that’s represented by a given extended storage component only if at least one of its access points is contained in a storage pool that’s included in at least one storage tier that’s defined for a namespace by its service plan.

You use the Storage page in the System Management Console to create, modify, manage, delete, and retire extended storage pools and to monitor the health, availability, capacity, and usage of all of the storage that’s used for each storage pool that’s defined on the HCP system.

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