Synology DS920 Synology High Availability SHA Troubleshooting Guide for DSM 7. - Page 47

Chapter 2: SHA Troubleshooting 2.2.53 Warning: Unexpected errors detected on the passive server Warning Unexpected errors detected on passive server My_Passive_Hostname. Suggestion: Restart passive server My_Passive_Hostname. If the problem persists, please contact Synology Technical Support for further assistance. Description The passive server is unable to determine its status or role in the cluster. Cause This is often caused by a software issue. This usually occurs when the system is unstable, such as when powering on the cluster. Resolution Check the cluster status again once the system is stable. If you are still unable to resolve the issue, refer to Chapter 3: Contact Customer Service to contact Synology Technical Support for further assistance. Related Notifications • Status of high-availability cluster My_SHA_Hostname is abnormal [Details: Unknown error in high-availability cluster My_SHA_Hostname] Possible Logs • [warning] Auto failover is temporarily unavailable: Unknown error in high-availability cluster My_SHA_Hostname. 2.2.54 Warning: Unrecognized system status Warning Unrecognized system status Details: The status of Synology High Availability is currently unavailable. Suggestion: If the problem persists, please contact Synology Technical Support for further assistance. Description The system is unable to determine the cluster status. Cause The system was unable to properly display the cluster status for more than ten minutes. Resolution Restart the cluster and check the cluster status again. If you are still unable to resolve the issue, refer to Chapter 3: Contact Customer Service to contact Synology Technical Support for further assistance. 2.2.55 Warning: Unstable Heartbeat connection Warning Unstable Heartbeat connection. Suggestion: If the problem persists, please contact Synology Technical Support for further assistance. Description The system is unable to obtain the details of the Heartbeat connection, such as the Transfer Speed and Latency. This information will not be displayed on the Cluster page. Cause Because the system is overloaded, there are insufficient resources for the system to obtain the details of the Heartbeat connection. Resolution 1. Wait for a while and then check the status again. This status may only appear temporarily whenever the system is busy. 2. If the problem persists, refer to Chapter 3: Contact Customer Service to contact Synology Technical Support for further assistance. 45