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PRIMECLUSTER Global Link Services Configuration and AdministrationGuide 4.2Redundant Line Control Function

5.1.2 Mutual standby

A mutual standby operation can be achieved by defining several virtual interfaces and by configuring each resource as a separate userApplication.

5.1.2.1 Starting

Starting process is equivalent to the standby operation, except that the mutual standby operation contains various userApplications. For details, please refer to "5.1.1.1 Starting".

5.1.2.2 Switching

Usually, userApplication communicates with the remote system using the virtual interface on each node. If a failure (such as panic, hang-up, or transfer path failure) occurs on the operating node, the virtual interface comprised in that corresponding node is passed over to the standby node. With an application allowing reconnection, it takes over the connection of the operating node.

5.1.2.2.1 Fast switching mode

Figure 5.18 Mutual standby configuration diagram in Fast switching mode shows the mutual standby configuration diagram of duplicated operation in Fast switching mode. The takeover of an address, etc. is performed in the same way as for the active standby configuration. For information, see Section "5.1.1.1.1 Fast switching mode".

Figure 5.18 Mutual standby configuration diagram in Fast switching mode

5.1.2.2.2 NIC switching mode

Figure 5.19 Mutual standby configuration diagram in NIC switching mode (NIC non-sharing) shows the mutual standby configuration diagram in NIC switching mode (NIC non-sharing). The takeover of an address, etc. is performed in the same way as for the active standby configuration. For information, see Section "5.1.1.1.2 NIC switching mode".

Figure 5.19 Mutual standby configuration diagram in NIC switching mode (NIC non-sharing)


Figure 5.20 Mutual standby configuration diagram in NIC switching mode (NIC sharing) shows the mutual standby configuration diagram in NIC switching mode (NIC sharing). The takeover of an address, etc. is performed in the same way as for the active standby configuration. For information, see Section "5.1.1.1.2 NIC switching mode".

Figure 5.20 Mutual standby configuration diagram in NIC switching mode (NIC sharing)

5.1.2.3 Fail-back

The fail-back is performed in the same way as for the active standby configuration. For more information, see "5.1.1.3 Fail-back".

5.1.2.4 Stopping

Stopping operation is equivalent to active standby connection. For detail, see "5.1.1.4 Stopping".