User's Guide

11. HP recommends that you change the HP 3PAR host persona/host OS to the appropriate setting
before enabling access to the HP 3PAR array.
NOTE: EMC Storage arrays do not implement specific OS settings when registering host
initiators on the EMC Storage array. During migration, online import cannot determine the
host OS when migrating the hosts to the HP 3PAR StoreServ Storage. All hosts that are being
created on the HP 3PAR StoreServ Storage during EMC migration are set by default to host
persona 2.
12. Update path configuration on the host. Multipath now recognizes extra paths to the HP 3PAR
StoreServ Storage, but all are still managed as source array devices.
a. Rescan.
b. Reload the multipath.conf file.
Example 11 Updating path configuration on the host
# echo "1" > /sys/class/fc_host/host2/issue_lip
# echo "- - -" > /sys/class/scsi_host/host2/scan
# echo "1" > /sys/class/fc_host/host3/issue_lip
# echo "- - -" > /sys/class/scsi_host/host3/scan
# multipath -ll
mpath13 (360060160bf902a00e03cb1bb3c3fe411) dm-4 DGC,VRAID
[size=150G][features=0][hwhandler=0][rw]
\_ round-robin 0 [prio=0][active]
\_ 2:0:0:2 sde 8:64 [active][ready]
\_ 3:0:0:2 sdg 8:96 [active][ready]
\_ 2:0:1:2 sdj 8:144 [active][ready]
\_ 3:0:1:2 sdm 8:192 [active][ready]
mpath12 (360060160bf902a00cae2a2a33c3fe411) dm-3 DGC,VRAID
[size=200G][features=0][hwhandler=0][rw]
\_ round-robin 0 [prio=0][active]
\_ 3:0:0:1 sdf 8:80 [active][ready]
\_ 2:0:0:1 sdd 8:48 [active][ready]
\_ 2:0:1:1 sdi 8:128 [active][ready]
\_ 3:0:1:1 sdl 8:176 [active][ready]
mpath11 (360060160bf902a002ac0388f3c3fe411) dm-2 DGC,VRAID
[size=200G][features=0][hwhandler=0][rw]
\_ round-robin 0 [prio=0][active]
\_ 3:0:0:0 sdb 8:16 [active][ready]
\_ 2:0:0:0 sdc 8:32 [active][ready]
\_ 2:0:1:0 sdh 8:112 [active][ready]
\_ 3:0:1:0 sdk 8:160 [active][ready]
13. Unzone the host from the source array.
Online Data Migration with Removal of EMC PowerPath 43