In addition, you can choose a different icon (see Figure 3-43) that represents this pool.  To change the icon, click the pen icon, as shown in Figure 3-44. When the pools are defined and the volumes are assigned, the pool shows one of the  following operational states: Online The storage pool is online and available. All of the MDisks in the  storage pool are available. Degraded path One or more nodes in the clustered system cannot access all of the  MDisks in the pool. A degraded path state is most likely the result of  the incorrect configuration of either the storage system or the FC  fabric. However, hardware failures in the storage system, FC fabric, or  a node can also be a contributing factor to this state. Degraded ports One or more 1220 errors were logged against the MDisks in the  storage pool. The 1220 error indicates that the remote FC port was  excluded from the MDisk. This error might cause reduced  performance on the storage system and usually indicates a hardware  problem with the storage system.  To fix this problem, you must resolve any hardware problems on the  storage system and fix the 1220 errors in the Event log. To resolve  these errors in the log, select  Monitoring Events Recommended Actions Run Fix  in the management GUI.  116  Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.2.1 Figure 3-44 Pen sign to change icon Figure 3-43 Volume by Pool option and changing the icon