Technical data

Web Tools Administrator’s Guide 4-19
Publication Number: 53-0000522-09
Administering High Availability
4
Figure 4-6 High Availability Module
Note that there is a background color with the HA Status for each CP. The HA Admin module is not
refreshed automatically. Click Refresh to update the information displayed in the HA Admin module.
Synchronizing Services on the CP
A nondisruptive CP failover is possible only when all the services on it have been synchronized.
The SilkWorm 48000 director can run in a mixed-CP environment for purposes of upgrading from a
CP128 to a CP256 or downgrading from a CP256 to a CP128. The following scenarios affect whether
HA synchronization will be established.
HA synchronization will not be established:
If the active CP is a CP256 running Fabric OS v5.0.x but the standby CP is a CP128 running Fabric
OS v4.4
HA synchronization will be established:
If the active CP is a CP128 running Fabric OS v4.4 but the standby CP is a CP256 running Fabric
OS v5.0.x
If both CPs are running Fabric OS v5.0.x