Note:  RAID 5 is only supported for drives less than 1 TB and requires a request for price  quote (RPQ). If selected, you must acknowledge your understanding of the risks  associated with RAID 5 before continuing. For more information about the supported drive  types and available RAID levels, see Chapter 2, “IBM DS8880 hardware components and  architecture” on page 25. The storage administrator can manually unassign arrays or reassign assigned arrays to  existing pools when the current configuration needs to be modified, such as when the  administrator adds storage capacity. To manually assign arrays, complete these steps: Note:  In a pool that is managed by Easy Tier, redistributing volumes across the pool is  automatic. This redistribution is called  Dynamic Pool Reconfiguration . For more  information, see  IBM DS8000 Easy Tier (for DS8880 R8.5 or later) , REDP-4667. 312  IBM DS8880 Architecture and Implementation 3. Select the  Redistribute  check box to redistribute all existing volumes across the pool,  including the new array.  4. Click  Assign . 2. Select the target pool from the drop-down list, and the RAID level that you want.  1. Select an array and click  Assign  or  Reassign , as shown in Figure 11-45 on page 313.  This action opens the Assign Array window.  7. When pool pair parameters are correctly specified, click  Create  to proceed. Manually assigning arrays to existing pools Figure 11-44 Configure FB pools (Advanced)