This software sets WWPN-based security settings on a device to form an access path. However, when the faulty part such as an adapter (controller) is replaced, the WWPN name may be changed because it is unique.
Devices whose WWPNs are changed when the faulty part such as an adapter (controller) is replaced:
All HBAs
Devices whose WWPNs are not changed when the faulty part such as an adapter (controller) is replaced:
ETERNUS Disk storage systems
Operation can be performed as is if WWPNs are not changed. If WWPNs are changed because an adapter (controller) is replaced, security functions of the WWPNs constituting the access path must be changed to those of new WWPNs. This operation is defined as "access path inheritance" and it provides a function that changes the WWPN security settings managed by this software.
Refer to the following sections for the access path inheritance procedure after replacing the faulty parts.
