Redundant pair management

About 2, I want to know whether the mode of operation is active-standby OR active-active and NOT whether a device is in active or standby state. I think your reply addresses the latter issue.

 

 

To determine if a device is part of a redundant pair, you can also query this DB variable which is probably more accurate:

 

 

"Local.Bigip.FTB.IsRedundant" ("yes" or 1 means it is part of a redundant pair)

 

 

To determine if Active-Active or Active-Standby is being used, query this DB variable

 

 

"Common.Bigip.Failover.ActiveMode" (1 == Active-Active, 0 == Active-Standby (default mode))

 

 

 

About 4, by preferred active unit, I mean the option in BIG-IP where you can designate one of the units in the redundant pair to have preferrence over the other when both units are eligible to be active. Section 5 of the "BIG-IP reference guide" talks about this feature.

 

 

To get/set the preferred active unit configuration, use the following 2 DB variables

 

 

Local.Bigip.Failover.ForceActive"

 

"Local.Bigip.Failover.ForceStandby"

 

 

For example, if you want BIG-IP 1 to be the preferred active unit set the variables like this:

 

 

BIG-IP 1:

 

Set "Local.Bigip.Failover.ForceActive" = 1

 

Set "Local.Bigip.Failover.ForceStandby" = 0

 

 

BIG-IP 2:

 

Set "Local.Bigip.Failover.ForceActive" = 0

 

Set "Local.Bigip.Failover.ForceStandby" = 1

 

 

PLEASE take EXTREME care when setting these variables correctly or you run the risk of disabling the high-availability functionality.

 

 

-Joe