In this software, a logical path between a server node and a storage device is defined as an access path.
Access paths are generated by the following access control functions of the server node, Fibre Channel switch, and storage.
Fibre Channel Switch Zoning
Switch vendors provide Fibre Channel switch zoning. Information such as the WWN/port number used by Fibre Channel for the host bus adapter (HBA) on the server node side and the WWN/port number of channel adapters (CAs) on the storage side is combined in a zone unit, and access from ports other than the port defined for the zone are restricted.
Storage Host Affinity
Storage vendors provide storage host affinity. The storage side recognizes the WWPN of the HBA on the server node side in order to restrict access. Associations of WWPNs of HBAs with storage areas (AffinityGroup/Zone) can also be set.
ETERNUS DX series refer to storage host affinity as "Set Affinity Group", "Set Host-Affinity Group".
Integrated Access Path Control
This software integrates and manages these functions to facilitate definition of settings that make use of the characteristics of SAN security and each function.
It controls access paths according to the functions and settings of individual devices.
