Example 18 Updating the multipath.conf file

#multipath -v2

#multipath -ll

mpath13 (360060160bf902a00e03cb1bb3c3fe411) dm-4 DGC,VRAID [size=150G][features=1 queue_if_no_path][hwhandler=1 emc][rw] \_ round-robin 0 [prio=1][active]

\_ 2:0:0:2 sde 8:64 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 3:0:0:2 sdg 8:96 [active][ready]

mpath12 (360060160bf902a00cae2a2a33c3fe411) dm-3 DGC,VRAID [size=200G][features=1 queue_if_no_path][hwhandler=1 emc][rw] \_ round-robin 0 [prio=1][active]

\_ 3:0:0:1 sdf 8:80 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 2:0:0:1 sdd 8:48 [active][ready]

mpath11 (360060160bf902a002ac0388f3c3fe411) dm-2 DGC,VRAID [size=200G][features=1 queue_if_no_path][hwhandler=1 emc][rw] \_ round-robin 0 [prio=1][active]

\_ 3:0:0:0 sdb 8:16 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 2:0:0:0 sdc 8:32 [active][ready]

#

6.Using the HP 3PAR Online Import Utility, execute the createmigration command with the

-migtype online option.

Example 19 Using createmigration with -migtype online

>createmigration -sourceuid xxxxxxxxxxxxxxxx -srchost "X7DBU-02-IG" -destcpg "testcpg" -destprov full -migtype online

>SUCCESS: Migration job submitted successfully. Please check status/details using showmigration command. Migration id: 1411673030253

This step admits LUNs presented to the EMC Storage system and exports them to the HP 3PAR host created on the EMC Storage system.

NOTE: Be aware, the createmigration command may take several minutes to complete.

TIP: Make a note of the Migration ID as it will be used in commands to track migration progress.

7.Execute the showmigration command to verify that the data migration task preparation has completed successfully. This may take some time. On the successful creation of the task the STATUS column will indicate preparationcomplete(100%).

>showmigration

 

 

 

MIGRATIONID

 

TYPE

SOURCE_NAME

DESTINATION_NAME

 

START_TIME

 

 

END_TIME

 

STATUS(PROGRESS)(MESSAGE)

1411673030253

 

online

SYMMETRIX+000194901212

3par_7200_DCA_01

 

Thu Sep 25

15:

23:50 EDT 2014

-NA-

 

preparationcomplete(100%)(-NA-)

8.Execute the showmigrationdetails command to verify the volumes being migrated. In the preparation stage, PROGRESS for each volume will be 0% and the TASK_ID will be unknown.

>showmigrationdetails -migrationid 1411673030253

SOURCE_VOLUME

DESTINATION_VOLUME

TASK_ID

PROGRESS

Online Data Migration with Native device-mapper Multipath 47