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Last failover type: None
-- Last Data Block Sync Record: --
------------------------------------------------
Stack Unit Config: no block sync done
Start-up Config: no block sync done
Runtime Event Log: no block sync done
Running Config: no block sync done
ACL Mgr: no block sync done
LACP: no block sync done
STP: no block sync done
SPAN: no block sync done
DellEMC#
Synchronization between Management and Standby Units
Data between the Management and Standby units is synchronized immediately after bootup.
After the Management and Standby units have done an initial full synchronization (block sync), Dell EMC Networking OS only updates
changed data (incremental sync). The data that is synchronized consists of conguration data, operational data, state and status, and
statistics depending on the Dell EMC Networking OS version.
Forcing a Stack Unit Failover
To force a Stack unit failover, use the following command.
Use this feature when you are replacing a stack unit and when you are performing a warm upgrade.
• To trigger a stack unit failover.
EXEC Privilege mode
redundancy force-failover stack-unit
Example of the redundancy force-failover stack-unit Command
Dell#redundancy force-failover stack-unit
System configuration has been modified. Save? [yes/no]: yes
Proceed with Stack-unit hot failover [confirm yes/no]:yes
Dell#
Specifying an Auto-Failover Limit
When a non-recoverable fatal error is detected, an automatic failover occurs.
However, Dell EMC Networking OS is congured to auto-failover only three times within any 60 minute period and you cannot change that.
Disabling Auto-Reboot
To disable auto-reboot, use the following command.
• Prevent a failed stack unit from rebooting after a failover.
CONFIGURATION mode
redundancy disable-auto-reboot
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High Availability (HA)