Synchronization Between Management And Standby Units; Forcing A Stack Unit Failover - Dell S4048–ON Configuration Manual

Example of the show redundancy Command
Dell#show redundancy
-- Stack-unit Status --
------------------------------------------------
Mgmt ID:
Stack-unit ID:
Stack-unit Redundancy Role:
Stack-unit State:
Stack-unit SW Version:
Link to Peer:
Peer Stack-unit:
-- Stack-unit Redundancy Configuration --
------------------------------------------------
Primary Stack-unit:
Auto Data Sync:
Failover Type:
Auto reboot Stack-unit:
Auto failover limit:
-- Stack-unit Failover Record --
------------------------------------------------
Failover Count:
Last failover timestamp:
Last failover Reason:
Last failover type:
-- Last Data Block Sync Record: --
------------------------------------------------
Stack Unit Config:
Start-up Config:
Runtime Event Log:
Running Config:
ACL Mgr:
LACP:
STP:
SPAN:
Dell#

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 Networking OS only updates changed
data (incremental sync). The data that is synchronized consists of configuration data, operational data, state and status, and statistics
depending on the Dell 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
0
0
Primary
Active
9.6(0.0)
Down
not present
mgmt-id
Full
Hot Failover
Enabled
3 times in 60 minutes
0
None
None
None
no block sync done
no block sync done
no block sync done
no block sync done
no block sync done
no block sync done
no block sync done
no block sync done
0
High Availability (HA) 365