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Figure 10-6 Configuration after failover

The system can continue to operate with this configuration until there is a need to

shut down the acting hub, or if the machine on which it is running becomes

unavailable. Each time the acting hub becomes unavailable, the scenario

described in this section is repeated.

10.2.3 Tips and best practices for using Hot Standby

Some tips and best practices for using Hot Standby are presented in this section.

Configuration

1. Identify the primary and secondary hub monitoring servers to implement Hot

Standby. The Tivoli Monitoring software on both machines is required to be at

the same release and maintenance level. Application support for all the

required applications should be installed at both hub monitoring servers. Hot

Standby is not supported at present for hub monitoring server on the z/OS

platform.

2. Ensure that the primary and secondary hub monitoring servers refer to each

other as the standby hub in their configuration. On the Windows platform, for

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example, the configuration would look like this for the primary hub monitoring

server (Figure 10-7, Figure 10-8 on page 348 and Figure 10-9 on page 349).

Figure 10-7 Primary hub monitoring server configuration - 1

Figure 10-8 Secondary hub monitoring server configuration - 2

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Figure 10-9 Primary hub monitoring server configuration - 3

The configuration for the secondary hub monitoring server should look like this

(Figure 10-10 on page 349, Figure 10-11 on page 350 and Figure 10-12 on

page 350).

Figure 10-10 Secondary hub monitoring server configuration - 1

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Figure 10-11 Secondary hub monitoring server configuration - 2

Figure 10-12 Secondary hub monitoring server configuration - 3

Further, review the operations log for each hub monitoring server after it is

started to ensure that FTO messages are emitted.

3. Ensure that all remote monitoring servers are configured correctly and

consistently, with the primary hub monitoring server as the monitoring server

they connect to, and the secondary hub monitoring server as the standby hub

(Figure 10-13, Figure 10-14 on page 351 and Figure 10-15 on page 352).

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.

Figure 10-13 Remote monitoring server configuration – 1

Figure 10-14 Remote monitoring server configuration - 2