Ucm6510 Failure Management; Ha100 Failure Management - Grandstream Networks HA100 User Manual

UCM6510 Failure Management

If the primary server (UCM6510 A) detects issues within itself, it will signal the HA100 via USB-to-RS485
cable to switch connection from Port A to Port B. The backup server (UCM6510 B) will then be successfully
connected and resume service. If the primary server is suddenly down for any reason, the HA100 will
automatically switch the connection from Port A to Port B, allowing the backup server (UCM6510) to resume
services and minimizing the impact of the interruption.

HA100 Failure Management

The failure of HA100 will not cause the whole system to go down automatically.
The system will only go down if UCM master and UCM slave fail or UCM master and HA100 fail. For
example, in a typical installation, UCM A is the master and UCM B is the slave. When HA100 goes down,
it will not impact UCM A's operation. And UCM A will detect that the HA100 is down and will send out alarm
notifications via email. In this scenario, the whole network environment will be down if UCM A's connections
are lost. The HA100 setup should be reestablished before this happens.
Important Notes：
•
When primary-secondary switchover happens, active calls will be cut off and cannot be recovered.
•
Switchover will occur when both WAN and LAN connections are lost.
•
When hardware scan and failure switchover are selected, the UCM will scan the selected interfaces.
If failures are detected, the HA100 will perform primary-secondary switchover. For example, when
hardware scan and failure switchover are selected for FXO, and the FXO cable is disconnected, it
will trigger a switchover.
•
For FXS port failure scan, the UCM will perform switchover only when there is an FXS chip
hardware error and not when an FXS cable is disconnected.
•
In a scenario where there is a persisting issue that triggers constant switchover, no switchovers will
occur beyond the second one.
•
Failure detection will detect only hardware failures.
•
Data in external storage devices will not sync.
•
If a switchover occurs, and UCM B assumes the Master role, UCM B will remain as Master until
another switchover occurs.
•
When upgrading UCM firmware, both UCM A and UCM B will be upgraded in the process. Both
devices will reboot upon successful upgrade.
HA100 User Manual
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