Dell FluidFS V3 NAS Solutions For PowerVault NX3500, NX3600, And NX3610Administrator's Guide

SAN subnets or "fabrics" are the network connections between NAS controllers and PowerVault MD controllers. In PowerVault systems, the SAN network consists of multiple subnets called SAN, SANb, SANc, etc.

The number of SAN fabrics depends on the number of SAN ports available on the PowerVault NAS controllers, and MD controller ports assigned to FluidFS/NAS. The general recommendation is to assign 2 ports on each MD controller to NAS traffic, so the number of SAN subnets are also 2.

The following table summarizes the type and number of physical ports on each type of FluidFS controller:

The following table summarizes the typical configuration of a system with 2 NAS controllers and 2 MD controllers:

The netmask and MTU on all subnets must be identical on all FluidFS and MD controller ports.