HP MPX200 Multifunction Router - Manual (Page 172)

Table 25 Troubleshooting (continued)
Reason and Solution Problem
60:05:08:b4:00:05:4d:94:00:00:c0:0
0:00:2c:00:00 and WWULN: you explicitly acknowledge or remove all migration jobs
associated with a set of LUNs that need to be removed.
60:05:08:b4:00:05:4d:94:00:00:c0:0 Only after that should you assign the new set of LUNs to
0:00:2d:00:00 mapped on same LUN the MPX200 host group. You must refresh the GUI three
ID: 8. times to rediscover the new set of LUNs. For more
information, see
“General precautions” (page 142) .
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 WWULN through different
LUN IDs from the same array. This can happen if the two The MPX200 displays the following messages, for example
(your WWULN and LUN ID will be different):
Array reconfiguration detected.
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.
For more information, see
“General precautions” (page
142) .
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
Verify that the MPX200 port is registered with the storage
system through the same storage controller port through The MPX200 does not show masked LUNs, and instead
shows LUN 0 only with offline status for an EMC CX array.
which it is trying to access the LUNs. If the MPX200 ports
are registered with SPA-0 port, and SPA-1 port is zoned
with the MPX200 ports on the switch, the MPX200 will not
see any of the assigned LUNs.
When presenting a data LUN for the first time, the router
considers it to be an array reconfiguration scenario, where
the data LUN replaces the controller LUN. To see the correct
LUN details, perform either of these options:
•
In the CLI, issue the rescan devices command, and
then select the appropriate array.
•
In HP mpx Manager, right-click the appropriate array
in the router tree, and then click Rescan.
Make sure that the LUN state is online for both the source
and destination LUNs. Check if the zoning configuration The MPX200 tries to start a scheduled job and shows a
job in Pending state instead of Running state.
is valid and that the arrays are shown in an online state.
If the array state is online and the LUN state is offline, make
sure that the LUN presented to the MPX200 at the time of
configuring the job has not been replaced by another LUN
at the time of starting the job. This is a case of
reconfiguration and the associated job will have to be
deleted. For more information, see
“Reconfiguring LUNs
on a storage array” (page 146) .
The commands for scanning LUNs from EqualLogic may
time out, causing a temporary connection loss. Wait While running a data migration job using a Dell EqualLogic
storage array as the source, the following may take a
longer time (up to one minute) to complete successfully:
approximately one minute for the router to reconnect and
continue with the migration job.
•
Refreshing the HP mpx Manager user interface.
•
Executing the show migration_luninfo or show
luninfo
commands in the CLI.
For older active-passive arrays, a data migration job may
fail if the active path disappears from the router while host Migration job fails on an active-passive array, even though
the host I/O uses the same router path.
I/Os are not active. To allow the router to discover new
paths, rescan the array, and then reconfigure the migration
job. No migration licenses are consumed when a job fails.
172 Troubleshooting