Restrictions; Reconfiguring Luns On A Storage Array; Removing An Array After Completing Data Migration Jobs; Troubleshooting - HP StorageWorks 6400/8400 - Enterprise Virtual Array User Manual

Restrictions

This section details the restrictions that apply to DMS for reconfiguring LUNs on a storage array and
provides the steps for removing an array after completing data migration jobs.

Reconfiguring LUNs on a storage array

Reconfigure a LUN ID following these guidelines:
• Do not change the LUN ID for any LUN that is currently assigned to a data migration Job.
• If a data migration job is completed or stopped on a specified LUN, you must acknowledge or
remove the migration job before reassigning the LUN ID.
• After changing the LUN presentation from the array to the MPX200, where a different LUN is
presented to the same LUN ID, click Refresh three times in the mpx Manager GUI and verify that
the state of the LUN is online. Also, make sure that the correct LUN world wide unique LUN name
(WWULN) and path information are shown.

Removing an array after completing data migration jobs

After you complete all data migration jobs, remove the storage array following these steps:
1. Acknowledge or remove all data migration jobs associated with the array being removed.
2. Remove the configured zones containing MPX200 Fibre Channel ports and controller ports of
the array.
3. Wait for up to 30 seconds to see the array in the offline state in the show array output (see
"show array" on page 218).
4. Remove the array from persistence using the array rm command (see
5. To completely remove the target entity, reboot the MPX200.

Troubleshooting

Table 29 lists some problems that may occur with the data migration service and provides a possible
reason or solution for each.
Table 29 Troubleshooting
Problem
The show array command does not show any
array entities.
The migration add command does not show
any source or destination array.
Reason and solution
Ensure that the zoning is correctly set up on the switches.
Ensure that the show targets command is not showing
any entry for the array. If show targets is showing an
entry for the target array, it means that the MPX200 is
zoned correctly, but no data LUNs are mapped to the
MPX200 ports. Add masking for the required data LUNs
so that they are seen by the MPX200, and then run the
target rescan command. (For more information, see
"show targets" on page 235 and
rescan" on page 237.)
By default, the target type attribute for an array is None.
Use the set array command to set it appropriately.
MPX200 Multifunction Router
"array rm" on page 239)
"target
245