Synology DS1621xs Synology High Availability SHA Troubleshooting Guide for DSM - Page 46

Warning: Unable to detect passive server

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Chapter 2: SHA Troubleshooting 2.2.51 Warning: Unable to detect passive server Warning Unable to detect passive server My_Passive_Hostname. Suggestion: Make sure passive server My_Passive_Hostname is powered-on and all network connections are properly made. Description The system cannot detect the passive server, but services are still running as normal. Your cluster is not protected by the passive server. Cause • Manually triggered by users: Passive server was powered off. • Automatically triggered by internal errors: Passive server hard drive errors or software crashes Resolution Do the following on the passive server: 1. Confirm that the passive server is powered on and the LED indicators light up normally. 2. Check the LAN LED indicators on the passive server and make sure that it is properly connected to the external network. 3. 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: Unable to detect My_Passive_Hostname (passive server)] Possible Logs • [info] My_Passive_Hostname (passive server) was shut down. • [warning] Auto failover is temporarily unavailable: Unable to detect My_ Passive_Hostname (passive server). 2.2.52 Warning: Unable to synchronize system configurations from the active server to the passive server Warning Unable to synchronize system configurations from My_Active_Hostname (active server) to My_Passive_Hostname (passive server). Details: The switchover service of the high-availability cluster is temporarily suspended. Suggestion: Contact Synology Technical Support for further assistance. Description The active server cannot synchronize its system configurations to the passive server. The system cannot perform a switchover or an auto-failover while in this state. Cause Synology High Availability cannot fully monitor and synchronize the system configurations due to unexpected errors, such as insufficient system resources. Resolution 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: Unable to synchronize system configurations] Possible Logs • [warning] Auto failover is temporarily unavailable: Unable to synchronize system configurations. 44

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Chapter 2: SHA Troubleshooting
2.2.51 Warning: Unable to detect passive server
Warning
Unable to detect passive server My_Passive_Hostname.
Suggestion
: Make sure passive server My_Passive_Hostname is powered-on and all network
connections are properly made.
Description
The system cannot detect the passive server, but services are still running
as normal. Your cluster is not protected by the passive server.
Cause
• Manually triggered by users: Passive server was powered off.
• Automatically triggered by internal errors: Passive server hard drive
errors or software crashes
Resolution
Do the following on the passive server:
1. Confirm that the passive server is powered on and the LED indicators
light up normally.
2. Check the LAN LED indicators on the passive server and make sure that it
is properly connected to the external network.
3. 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:
Unable to detect My_Passive_Hostname (passive server)]
Possible Logs
• [info] My_Passive_Hostname (passive server) was shut down.
• [warning] Auto failover is temporarily unavailable: Unable to detect My_
Passive_Hostname (passive server).
2.2.52 Warning: Unable to synchronize system configurations from the
active server to the passive server
Warning
Unable to synchronize system configurations from My_Active_Hostname (active server) to
My_Passive_Hostname (passive server).
Details
: The switchover service of the high-availability cluster is temporarily suspended.
Suggestion
: Contact
Synology Technical Support
for further assistance.
Description
The active server cannot synchronize its system configurations to the
passive server. The system cannot perform a switchover or an auto-failover
while in this state.
Cause
Synology High Availability cannot fully monitor and synchronize the system
configurations due to unexpected errors, such as insufficient system
resources.
Resolution
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:
Unable to synchronize system configurations]
Possible Logs
• [warning] Auto failover is temporarily unavailable: Unable to synchronize
system configurations.