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## 2.3.2 Port naming and distribution 

In the field, fabric naming conventions vary. However, it is common to find fabrics that are named, for example, PROD_SAN_1  and PROD_SAN_2 , or PROD_SAN_A  and PROD_SAN_B . This type of naming convention is used to simplify the management and troubleshooting, after their denomination followed by 1  and 2  or A  and B , which specifies that the devices connected to those fabrics contains the redundant paths of the same servers and SAN devices. 

To simplify the SAN connection identification and troubleshooting, keep all odd ports on the odd fabrics, or “A” fabrics and the even ports on  the even fabric or “B” fabrics, as shown in Figure 2-10. 

<img src='content_image/969588.jpg'>

As a preferred practice, assign specific uses to specific FlashSystem 9100 ports. This technique helps optimize the port utilization by aligning the internal allocation of hardware CPU cores and software I/O threads to those ports. 

Figure 2-11 shows the specific port use guidelines for the FlashSystem 9100. 

<img src='content_image/969589.jpg'>

