Create extent pool — Define extent pool requirements

Use this page to define the storage requirements for this extent pool.

Introduction

In this page, you can create the applicable arrays and ranks for the extent pool. The arrays are formatted in the specified RAID type, and the ranks are formatted in the specified storage type. The storage amount is rounded up to the nearest array size to support the specified amount of storage.

Menu path

Real-time manager or Simulated manager > Configure storage > Extent pools > Select Action: Create... > Go

Fields

Nickname: The user- or system-defined nickname. If you choose to keep the default nickname, the number in subsequent default nicknames increases by 1 (for example, Extent pool 1, Extent pool 2).
Storage type: The supported or available storage types [for example, count key data (CKD) or fixed block (FB)].
RAID: The supported or available RAID types (for example, RAID 5 and RAID 10).
Required amount of storage: The amount of storage required for the extent pool up to the maximum available. The default is the total available RAID 5 storage in the specified unit (GB or TB).
Note: An extent pool uses all of the available storage in arrays or ranks that make up the extent pool, even if you specify a storage amount that is less than the entire array or rank storage amount. For example, if you have a 385 GB rank and need 100 GB of storage, your extent pool will contain 385 GB of storage. However, if you have two ranks with 100 GB of storage in each rank and you need 120 GB in your extent pool, your extent pool will contain two ranks with 200 GB of storage.
Unit: The amount of storage in terms of gigabytes (GB) or terabytes (TB).
Use any existing unassigned arrays and ranks: If checked, the application creates the extent pool by using existing arrays and ranks as well as creating new arrays and ranks. If not checked, the application does not use any existing arrays or ranks to create the extent pool.