Hitachi NVM Navigator v03-07 User Manual page 16

LPAR migration is the function to transfer an LPAR from a server blade to
another one. You can execute LPAR migration to maintain server blades and
use resources such as CPU, memory, NIC, and FC HBA efficiently. By
executing LPAR migration, you can transfer MAC addresses and WWNs,
accompanying logical NICs and HBAs assigned to the LPAR to migrate, along
with other kinds of configuration data, namely, you can reconfigure the LPAR
briefly on the destination server blade without reconfiguring any settings for
the LPAR.
You can select a mode to migrate an LPAR from two modes: Shutdown mode
and Concurrent Maintenance mode. You can have an LPAR migrate with the
guest OS on the LPAR running in Concurrent Maintenance mode. Therefore,
you can exchange or update some kinds of hardware and software without
suspending services provided on the LPAR, whereas, you can have an LPAR
migrate with the guest OS on the LPAR down in Shutdown mode. Therefore,
you must shut down the guest OS in advance or set the shutdown option for
the guest OS so that the guest OS is shut down automatically prior to
migration when you execute the LPAR migration.
When you execute LPAR migration in Concurrent Maintenance mode, you can
exchange or update the following kinds of hardware and software. For the
procedures, see "Exchanging or updating hardware or software" in "Migration
procedures".
Source
Server
Chassis
Management module
: Item recommends to be exchanged or updated
with LPAR migration in Concurrent Maintenance mode
*: Item recommends to be exchanged or updated
only when exchange operation while a server blade is in operation is not supported.
: Item does not recommend to be exchanged or updated
with LPAR migration in Concurrent Maintenance mode
Figure 1-1 Exchangeable hardware and software with LPAR migration in
1-2
Server Blade
HVM
CPU
Memory
SD Card
NIC
FC HBA *
EFI/BIOS
BMC
Concurrent Maintenance mode
Overview
HVM Navigator User's Guide - Migration
Migrating all LPARs
Destination
Server
Server Blade
Chassis
Management module