LDoms
Logical Domains (LDoms) is a virtual hardware environment which runs using the hypervisor. By dividing one platform into several virtual server environments, operating systems can be run separately.
Redundant Line Control function also ensures network high-reliability on a virtual server (guest domain).
Network interface of LDoms
In the LDoms environment, the virtual network (vnet) can be defined on a virtual server. The virtual network communicates with other domains or physical networks via the virtual switch (vsw).
Redundant Line Control function makes the network in the LDoms environment highly reliable by multiplexing the virtual network (vnet) connected to two virtual switches for each domain.
In the LDoms environment, Redundant Line Control function supports only the NIC switching mode.
Note
Redundant Line Control function multiplexes networks for each domain. In the LDoms environment, install Redundant Line Control function for each domain.
Network high-reliability in LDoms environments
This section describes the network structure for high-reliability of virtual networks in LDoms environments.
Figure 2.59 Network structure in LDoms environments
In the system above, virtual switches "primary-vsw0" and "primary-vsw1" are configured by using physical NICs "e1000g0" and "e1000g1" on the control domain. Virtual NICs "vnet0" and "vnet1" generated on the virtual switches are used on guest domains.
On each domain, Redundant Line Control function multiplexes the virtual NIC to configure the virtual interface sha0. For the virtual NIC to be multiplexed, "vsw0" and "vsw1" are specified on the control domain, and "vnet0" and "vnet1" are specified on guest domains.
Information
When multiplexing the virtual networks (vsw and vnet) with the NIC switching mode in LDoms environments, specify 0:0:0:0:0:0 to the MAC address of the standby patrol. Therefore, the virtual MAC address generated by LDoms with the standby patrol function will be used.
To configure the cluster system environment of Redundant Line Control function in LDoms environments, see "Appendix H" in "PRIMECLUSTER Installation and Administration Guide 4.2."
