Automatic versus manual pool creation

You create pools automatically or manually to allow physical storage to be grouped, and then dynamically allocated as needed. When a pool is created, you can add physical drives.

Automatic creation

Automatic pool creation is initiated when System Manager detects unassigned capacity in a storage array. When unassigned capacity is detected, System Manager automatically prompts you to create one or more pools, or add the unassigned capacity to an existing pool, or both.

Automatic pool creation occurs when one of these conditions is true:

Each drive in a pool must be of the same drive type (HDD or SSD) and have similar capacity. System Manager will prompt you to complete the following tasks:

Manual creation

You might want to create a pool manually when automatic creation cannot determine the best configuration. This situation can occur for one of the following reasons:

You might also want to create a pool manually if you have multiple applications on your storage array and do not want them competing for the same drive resources. In this case, you might consider manually creating a smaller pool for one or more of the applications. You can assign just one or two volumes instead of assigning the workload to a large pool that has many volumes across which to distribute the data. Manually creating a separate pool that is dedicated to the workload of a specific application can allow storage array operations to perform more rapidly, with less contention.