The attributes for the drives in Figure 11-117 on page 355 are described: The  I/O enclosure  contains I/O adapters that are installed in the DS8880 storage system, as  shown in Figure 11-118. The I/O adapters transfer data into and out of the system. Point to an  I/O enclosure in the frame (Figure 11-112 on page 352) to get information about the  enclosure. Or select  I/O Enclosures  in Figure 11-113 on page 353 for more information  about all the installed I/O enclosures. The attributes for the I/O enclosure in Figure 11-118 are described: To see the I/O adapters and their attributes, left-click an I/O enclosure (Figure 11-112 on  page 352) when the magnifying glass pointer appears. This action shows the I/O enclosure  adapter view (rear of the enclosure), as shown in Figure 11-119 on page 357. To see the  attributes for all installed DAs or HAs, select  Device Adapters  or  Host Adapters  from  System Health Overview (Figure 11-113 on page 353). The  fibre channel ports  are ports on a host adapter that connect the DS8880 to hosts,  switches, or another storage system either directly or through a switch.  Point to a port, and detailed information about the port is displayed. The port topology can be  modified by selecting the port, right-clicking, and selecting  Modify fibre channel port  Protocol , as shown in Figure 11-119 on page 357. 356  IBM DS8880 Architecture and Implementation Figure 11-118 IO Enclosures detail I/O enclosures GLYPH<SM590000> Host adapter (HA): Number of HA installed.  GLYPH<SM590000> Device adapter (DA): Number of DA installed.  GLYPH<SM590000> Location Code: Logical location code of the I/O enclosure.  – Service: The enclosure is being serviced. – Offline: Service is required. A service request to IBM was generated. – Online: Operational and normal. GLYPH<SM590000> State: The current state of the I/O enclosure is one of the following states: GLYPH<SM590000> ID: The enclosure ID. GLYPH<SM590000> Class: The drive class. GLYPH<SM590000> Capacity: The raw capacity of the drive. – Offline: The drive requires service. – Service: The drive is being serviced. – Initializing: The drive is being prepared for operation. – Normal: Operational. GLYPH<SM590000> State: The current state of the drives is described: GLYPH<SM590000> ID: The Drive, Storage Enclosure, and Frame ID.