You are designing a new 4-node AFF A400 SAN cluster with 20 ISCSI hosts. Each AFF A400 node will have four data LIFs. Each ISCSI host needs to access…

SLM will choose 4 LIFs per node, being 8 LIF total (owner and HA partner), enabling portsets will help

to limit the ports per node... that way we can stablish only 2 LIF per node.

Creating port sets and binding igroups to port sets

In addition to using Selective LUN Map (SLM), you can create a port set and bind the port set to an

igroup to further limit which LIFs can be used by an initiator to access a LUN. If you do not bind a port

set

to an igroup, then all of the initiators in the igroup can access mapped LUNs through all of the LIFs on

the node owning the LUN and the owning node's HA partner.

You can find more information on this link:

https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm-sanag%2FGUID5CC27202-A43F-429F-AB13-C70E7CD58E09.html