Figure 12-6 shows the SAS ports on the Storwize V5010. Each Storwize V5020 node canister has three 12 Gbps SAS ports. Port 1 can be used to  connect optional expansion enclosures, and ports 2 and 3 can be used for host attachment. Figure 12-7 shows the SAS ports on the Storwize V5020. Each Storwize V5030 node canister has two 12 Gbps SAS ports to connect optional  expansion enclosures. This port does not support host attachment. Figure 12-8 shows the SAS ports on the Storwize V5030. Figure 12-8 Storwize 5030 SAS ports Figure 12-7 Storwize V5020 SAS ports Figure 12-6 Storwize V5010 SAS ports 628  Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.2.1