StorCase Technology FC-to-SCSI Single & Dual RAID - Manual (Page 169)

156 Appendix C - Troubleshooting
StorCase Technology, Inc. FC-SCSI Dual RAID Module User's Guide - Rev. A01
Table C-1: Warning Events (cont'd)
Event Definition
IFSII_FDR23
WWN HAS
CHANGED
This controller was replaced in
the past and assumed the WWN
(node and port) of the original
controller. However, both con-
trollers have rebooted, and this
controller is now using a WWN
based on its own serial number.
This transition takes place on a
dual controller reboot because it
is not advisable to assume
another controller’s WWNs in-
definitely (in case that controller
is repaired and plugged back in-
to the same fabric), and be-
cause host operations have
already been disrupted by the
dual boot.
Recommended
Action
Verify the WWN information for
this controller on all hosts that
access it.
NON-NATIVE
WWN
This replacement controller has
assumed the WWN (node and
port) of the original controller.
This is done to make the re-
placement of a controller in an
active-active configuration trans-
parent to the host. However, if
both controllers lose power or
are otherwise rebooted, the ori-
ginal controller’s WWN will be
lost, and the current controller
reboot will cause the controller’s
WWN to change from the host’s
perspective.
Verify the WWN information for
this controller on all hosts that
access it.
IFSII_FDR24