User's Guide

Example 36 showmigration command
>showmigration -migrationid 1396643904320
MIGRATION_ID TYPE SOURCE_NAME DESTINATION_NAME START_TIME END_TIME STATUS(PROGRESS)(MESSAGE)
1396643904320 MDM CLARiiON+APM00125127014 3par_7200_DCB_01 Fri Apr 04 16:38:24 EDT 2014 -NA-
unpresenting(1%)(-NA-)
TIP: The final status on successful completion will indicate “success”.
Bringing the Linux Host Back Online
To bring the Linux host back online, follow these steps:
1. Verify that the import has started and confirm that a TASK_ID is available for each volume
by issuing the showmigrationdetails command.
Example 37 Unsafe to bring the host online
>showmigrationdetails -migrationid 1395864499741
SOURCE_VOLUME DESTINATION_VOLUME TASK_ID PROGRESS
Test_Lun_01 Test_Lun_01 |unknown| 0%
Example 38 Safe to bring the host online:
>showmigrationdetails -migrationid 1395864499741
SOURCE_VOLUME DESTINATION_VOLUME TASK_ID PROGRESS
Test_Lun_01 Test_Lun_01 6134 0%
2. Once the import has started for all volumes, bring the Linux host online.
3. On the Linux host, scan for newly exported LUNs from the destination HP 3PAR StoreServ
Storage system. Perform this step for all HBAs on the host that are connected to the HP 3PAR
StoreServ Storage system.
Example 39 Scanning Exported LUNs
# ls /sys/class/fc_host
host2
# echo "1" > /sys/class/fc_host/host2/issue_lip#
echo "- - -" > /sys/class/scsi_host/host2/scan
4. On the Linux host, update the multipath for LUNs exported from the destination EMC Storage
system.
Bringing the Linux Host Back Online 59