Netapp Updated NS0-522 Exam Questions and Answers by lucien

To restrict access to a newly created LUN to specific hosts, the administrator should configure the igroup (initiator group). An igroup is used to control which initiators (hosts) are allowed to access specific LUNs. This ensures that only authorized hosts can access the storage, enhancing security and access control.

For more details, refer to:

NetApp Documentation on iGroups​ ( NetApp )​.

When moving a LUN between different HA pairs in the same SVM to prevent loss of connectivity, the reporting nodes must be modified. The reporting nodes configuration ensures that the initiator paths are properly updated to reflect the new physical location of the LUN. This prevents disruptions in connectivity by maintaining the correct pathing information for the host systems accessing the LUN.

For more details, refer to:

NetApp Documentation on LUN Management

For a small remote site with two ESXi servers requiring SAN storage and no switches, the recommended protocol is iSCSI. iSCSI allows for direct connectivity between the servers and the NetApp ONTAP storage system using standard Ethernet infrastructure, which is suitable for environments without Fibre Channel switches.

For more information, see:

NetApp iSCSI Configuration Guide

In a traditional AFF or FAS SAN configuration using ALUA, paths through the controller that owns the LUN are reported as Active/Optimized. Paths entering through another controller can be Active/Non-Optimized. When I/O arrives through an active, non-optimized path, ONTAP must forward that I/O internally to the node servicing the LUN. This indirect data path uses the ONTAP cluster interconnect, represented in the choices as the cluster network, and therefore introduces additional latency compared with a direct optimized path. The external FC fabric transports traffic only as far as the target LIF; the HA interconnect is associated primarily with HA-pair storage failover functions, and the peering network is used for intercluster communications and replication. Relevant SAN ONTAP topics include ALUA, optimized versus non-optimized paths, cluster interconnect forwarding, SLM, and FCP multipathing.