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PRIMECLUSTER Global Link Services Configuration and AdministrationGuide 4.3Redundant Line Control Function

3.1.1 Selecting mode

Determine which mode to use. Table 3.1 Selection of modes indicates the selection of modes.

For selecting adequate mode, refer to "1.1.2 Criteria for selecting redundant line control methods".

Table 3.1 Selection of modes

Mode

Selecting mode

Fast switching mode

Select this mode if every one of the remote hosts is a Solaris server or Linux server. This mode can detect the abnormalities of the multiplexed transfer route immediately. When abnormalities are detected, communication can be immediately changed to a normal transfer route.

NIC switching mode

Select this mode, if a hot-standby router, a network load balancer, or servers and other various network devices from other manufacturers are used. This mode is usable for many configurations.

GS/SURE linkage mode

Select this mode if using GS and SURE SYSTEM exclusively. Other servers or any network device must not exist in the same network.

It is possible to create multiple virtual interfaces in a single system to use several modes concurrently.

Note

In order to use redundant mode on a single system, you must provide NIC for each mode. For example, when using hme0 and hme1 in Fast switching mode, the other modes such as NIC switching or GS/SURE linkage mode must use different NIC (such as hme2 and hme3).

Specify a mode using "hanetconfig create" command with -m option.