Technical information

63 EqualLogic Configuration Guide | Version 15.2 | August 2014
Figure 22 Connection Paths for FS7500 iSCSI SAN, IPMI and Controller Interconnect
The inter-switch connection sizing guidelines provided in Section 8.2.2 also apply to FS7500 SAN design.
The FS7500 mirrors the write cache between controller nodes. To accomplish this, all write operations are
transmitted across the controller interconnect. Thus, it is very important that you follow connection
pattern shown in Figure 22 to ensure corresponding ports are connected to the same switch. This
connection pattern prevents controller interconnect traffic from crossing the inter-switch connection.