Maintenance Mode - Hitachi HVM Navigator V03-06 User Manual

Migration path
Migration path is a path to transfer configuration data for the source LPAR and
memory data for the guest OS on the source LPAR to the destination HVM. It's
necessary that a shared NIC port with the theoretical bandwidth of over 1Gbps
(actual bandwidth of over 900Mbps) to execute LPAR migration in Concurrent

Maintenance mode.

For setting a migration path, see "Prerequisite Setting" in "Concurrent
Maintenance mode" in "Migration procedure".
The summary on setting a migration path for CB2000, CB500, or CB2500 is
shown in the following table. Be sure that you check the following table when
you configure a migration path.
Table 2-113 Setting of migration path
Item
Set the management path
as a migration path
Emulex
10 Gb NIC
VLAN setting
for a migration
5
path
Other NIC
Notes:
1. On CB2000, the bandwidth of the management path is 100Mbps. So, do not set the management
path as a migration path.
2. Configure a different network from the network to communicate with the management module
(Between 192.168.253.48 and 192.168.253.63) and that to communicate with BMC, HvmSh,
HVM Navigator, and so on, for migration paths.
3. When you set any of the network segments such as 1a, 1b, and so on assigned to one or more
activated LPARs as migration paths for the source and destination HVMs and execute LPAR
migration in Concurrent Maintenance mode, the network load caused by LPAR migration in
Concurrent Maintenance mode affects the network performance on the activated LPARs. So, it's
recommended that you set network segments which are not assigned to any LPARs as migration
paths for the source and destination HVMs to secure network connection for LPAR migration in
Concurrent Maintenance mode.
4. When you set a path, which isn't the management path, as a migration path, configure a
different network from the network to communicate with the management module (Between
192.168.253.48 and 192.168.253.63) for the migration path.
5. VLANID has the following advantages.
Packets cannot be referred to through another network.

Packets are isolated from ones on another network.

HVM Navigator User's Guide - Migration
CB2000
1, 2, 3
No
Not recommended
Recommended
Usage environments
Concurrent Maintenance
CB500/CB2500
3, 4
Recommended
Not recommended
Recommended when you set a
path, which isn't the
management path, as a
migration path
2-65