To create an FB pool pair, complete these steps: Note:  You can automatically assign arrays when creating a pool pair. The arrays are  created with the default raid type, RAID 6. To configure other supported raid types, use  the advanced configuration for pool creation, or assign the arrays manually to an  existing storage pool from the unassigned arrays. RAID level 5 can be selected for the  older models of DS8880 but it is not recommended. For more information, see  “Creating Open Systems (FB) Pools: Advanced Configuration” on page 311. 310  IBM DS8880 Architecture and Implementation Figure 11-42 Create FB pool pair and assign arrays to a pool pair Figure 11-41 Create Pool Pair tab 1. From the System window, click the  Pools  icon.  2. Click  Arrays by Pool  to open the Array by Pool window, as shown Figure 11-41.  3. Click the Create Pool Pair tab. The Create Pool Pair window opens. 4. Specify the pool pair parameters, as shown in Figure 11-42: – Storage type : Ensure that  Open Systems (FB)  is selected. – Name prefix : Add the pool pair name prefix. A suffix ID sequence number is added  during the creation process.