User`s guide

A–Troubleshooting
A-2 ISR654606-00 A
A migration job goes into running state, halts at
the Running (0% complete) state for awhile,
and then fails.
Make sure that the controller ports zoned for the
accessing source and destination array LUNs also own
the respective LUNs. In other words, if the source LUN
is being accessed by the MPX200 through a controller
port belonging to Controller A while the LUN is actually
owned by Controller B, the MPX200 will allow you to
configure a migration job but will not be able to do any
data access operations for that LUN.
The MPX200 displays the following messages:
Array reconfiguration detected.
Refer to user manual for trouble
shooting.
WWULN:
60:05:08:b4:00:05:4d:94:00:00:c0:0
0:00:2c:00:00 and WWULN:
60:05:08:b4:00:05:4d:94:00:00:c0:0
0:00:2d:00:00 mapped on same LUN
ID: 8.
Marking LUN offline: LUN ID: 8
WWULN:
60:05:08:b4:00:05:4d:94:00:00:c0:0
0:00:2d:00:00
The MPX200 sees the same LUN ID being presented
for two different LUNs. This can happen if you try to
change the set of LUNs exposed to the MPX200 with-
out removing associated migration jobs and zoning out
the original set of LUNs.
In order to keep the LUN object database maintained
by the MPX200 in a sane state, ensure that you explic-
itly acknowledge or remove all migration jobs associ-
ated with a set of LUNs that need to be removed. Only
after that should you assign the new set of LUNs to the
MPX200 host group. You must refresh the GUI three
times to rediscover the new set of LUNs.
The MPX200 displays the following messages:
Array reconfiguration detected.
Refer to user manual for trouble
shooting.
WWULN:
60:05:08:b4:00:05:4d:94:00:00:c0:0
0:00:2d:00:00 mapped on different
LUN IDs: 8 and 9.
Marking LUN offline: LUN ID: 8,
WWULN:
60:05:08:b4:00:05:4d:94:00:00:c0:0
0:00:2d:00:00. LUN with ID: 8 is
not presented
The MPX200 sees the same WWULN through different
LUN IDs from the same array. This can happen if the
two MPX200 ports are placed in different host groups
and you inadvertently assign different LUN IDs while
presenting a specific LUN to the two host groups. To
avoid this situation, put both MPX200 ports under the
same host group.
Table A-1. Troubleshooting (Continued)
Problem Reason and Solution