Synology DS1621xs Synology High Availability SHA Troubleshooting Guide for DSM - Page 29

Warning: Abnormal network connection [Details: The following

Get Synology DS1621xs PDF manuals and user guides View all Synology DS1621xs manuals
Add to My Manuals
Save this manual to your list of manuals

Page 29 highlights

Chapter 2: SHA Troubleshooting 2.2.21 Warning: Abnormal network connection [Details: The following network interfaces on passive server failed to connect: LAN X.] Warning Abnormal network connection. Details: The following network interfaces on passive server My_Passive_Hostname failed to connect: LAN X. Suggestion: Make sure the Ethernet cable between the switch and cluster interface LAN X on passive server My_Passive_Hostname is properly connected. If the problem persists, please use another Ethernet cable. LED Indicator Passive server • LED on the LAN port: Off Description On the passive server, the connection of the network interface LAN X is abnormal. If the system performs an auto-failover or switchover, the services using LAN X for connection may be affected. Cause This error is usually caused by hardware issues, such as loose cables, broken cables, or switch malfunctions. Resolution 1. Do the following on the passive server: • Make sure that the Ethernet cable between LAN X and the switch is attached properly, or replace it with another Ethernet cable. • Try another network port on the switch, or use another switch. 2. 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 cluster connection on My_Passive_Hostname (passive server) of the following network interfaces: LAN X] Possible Logs • [warning] Auto failover is temporarily unavailable: Unable to detect cluster connection on My_Passive_Hostname (passive server) of the following network interfaces: LAN X. 2.2.22 Warning: Abnormal network connection [Details: The following network interfaces on the active server failed to connect: Bond Z:[LAN Y].] Warning Abnormal network connection. Details: The following network interfaces on the active server My_Active_Hostname failed to connect: Bond Z:[LAN Y]. Suggestion: Make sure the Ethernet cable between the switch and interface Bond Z:[LAN Y] on active server My_Active_Hostname is properly connected. If the problem persists, please change the Ethernet cable. LED Indicator Active server • LED on the LAN port: Off Description On the active server, the LAN Y connection belonging to bond Z is abnormal. As a result, the transmission speed and fault tolerance of bond Z is reduced. Cause This error is usually caused by hardware issues, such as loose cables, broken cables, or switch malfunctions. 27

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
27
Chapter 2: SHA Troubleshooting
2.2.21 Warning: Abnormal network connection [Details: The following
network interfaces on passive server failed to connect: LAN X.]
Warning
Abnormal network connection.
Details
: The following network interfaces on passive server My_Passive_Hostname failed to
connect: LAN X.
Suggestion
: Make sure the Ethernet cable between the switch and cluster interface LAN X on
passive server My_Passive_Hostname is properly connected. If the problem persists, please
use another Ethernet cable.
LED Indicator
Passive server
• LED on the LAN port: Off
Description
On the passive server, the connection of the network interface LAN X
is abnormal. If the system performs an auto-failover or switchover, the
services using LAN X for connection may be affected.
Cause
This error is usually caused by hardware issues, such as loose cables,
broken cables, or switch malfunctions.
Resolution
1. Do the following on the passive server:
• Make sure that the Ethernet cable between LAN X and the switch is
attached properly, or replace it with another Ethernet cable.
• Try another network port on the switch, or use another switch.
2. 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 cluster connection on My_Passive_Hostname (passive
server) of the following network interfaces: LAN X]
Possible Logs
• [warning] Auto failover is temporarily unavailable: Unable to detect
cluster connection on My_Passive_Hostname (passive server) of the
following network interfaces: LAN X.
2.2.22 Warning: Abnormal network connection [Details: The following
network interfaces on the active server failed to connect: Bond Z:[LAN Y].]
Warning
Abnormal network connection.
Details
: The following network interfaces on the active server My_Active_Hostname failed to
connect: Bond Z:[LAN Y].
Suggestion
: Make sure the Ethernet cable between the switch and interface Bond Z:[LAN Y]
on active server My_Active_Hostname is properly connected. If the problem persists, please
change the Ethernet cable.
LED Indicator
Active server
• LED on the LAN port: Off
Description
On the active server, the LAN Y connection belonging to bond Z is abnormal.
As a result, the transmission speed and fault tolerance of bond Z is reduced.
Cause
This error is usually caused by hardware issues, such as loose cables,
broken cables, or switch malfunctions.