User's Guide

Table 2 Premigration checklist—Online (continued)
If EMC PowerPath is not installed,
see:
If EMC PowerPath is installed,
see:StepNumber
NOTE: (A maintenance
window is required.)
2. Configure device-mapper on
the host:
“Online Data Migration with
Removal of EMC PowerPath”
(page 40), step 6
3. Remount application file
systems:
“Online Data Migration with
Removal of EMC PowerPath”
(page 40), step 7
“Online Data Migration with
Native device-mapper Multipath”
(page 45), steps 6–8
“Online Data Migration with
Removal of EMC PowerPath”
(page 40), steps 8–10
Create migration (HP 3PAR Online
Import Utility: createmigration
command)
6
“Online Data Migration with
Native device-mapper Multipath”
(page 45), step 9
“Online Data Migration with
Removal of EMC PowerPath”
(page 40), step 11
Change the HP 3PAR host
persona/host OS.
7
“Online Data Migration with
Native device-mapper Multipath”
(page 45), steps 10–12
“Online Data Migration with
Removal of EMC PowerPath”
(page 40), steps 12–14
Update path configurations.8
Migration
Table 3 Migration checklist—Online
If you are using native
device-mapper-multipath:
If you uninstalled EMC PowerPath
(in “Premigration” (page 9), step
5):StepNumber
“Online Data Migration with
Native device-mapper Multipath”
(page 45), step 13
“Online Data Migration with
Removal of EMC PowerPath”
(page 40), step 15
Start the migration (HP 3PAR
Online Import Utility:
startmigration.
1
“Viewing Migration Status” (page
55)
“Viewing Migration Status” (page
55)
Monitor migration with the
HP 3PAR Online Import Utility until
completion.
2
“removemigration” (page 80)“removemigration” (page 80)Optional: Remove the migration
definition when the migration has
completed.
3
Post-Migration
Table 4 Post-migration checklist—Online
StepNumber
When all migrations are complete, remove the source storage system (EMC).1
Remove peer zones and reconfigure peer ports to host ports.2
.
10 Migration Process Checklists