Portsets
Portsets are groupings of logical addresses that are associated with the specific traffic types. The system supports both Fibre Channel and IP portsets for host attachment, IP portsets for backend storage connectivity, and IP replication traffic. The system supports a maximum of 72 portsets.
A portset restricts a host to access only a specific set of IP addresses of a node. A host can access only those IP addresses that are configured on a portset and is mapped to that host. A portset object is a system-wide object and might contains IP addresses from every I/O group. To access multiple nodes in a system, a portset must be configured with the IP address of the nodes that the host wants to access. A portset can be of Host Attach, Remote Copy, and Storage type. The default portset is the Host Attach type. A portset of a specific type can be used only for that function, for example, a host attach type portset cannot be used for remote copy partnership.
A cloud platform supports a maximum of two IP address per port. The system can use the same IP address for more than one purpose by sharing IP addresses using -shareip flag in mkip command.
Each portset is identified by a unique name. The portset 0 is an Ethernet default porset, and portset 64 is a default Fibre Channel portset configured when the system is created or updated, while portset 1 and portset 2 are replication porset and portset 3 is storage portset. A portset can be created and managed by using the command-line interface and GUI. In the command-line interface, use the lsportset command to display the configured portsets. An administrator can do one of the following actions on a portsets: