Forum Discussion

Luissoler79_138's avatar
Luissoler79_138
Icon for Nimbostratus rankNimbostratus
Oct 14, 2015

Disable VIP when pool has less than x amount of active servers

Hello,   I use a pair of active/passive BIGIP LTM running version 11.6.0HF5. The LTMs are used to load-balance RADIUS traffic to 5 RADIUS servers. There is only one pool configured on the applianc...
application delivery
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iRules
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Arie's avatar
Arie
Icon for Altostratus rankAltostratus
Oct 16, 2015

Hannes' solution is technically accurate, but I prefer more generic rules that can be applied to different VIPs.

If you change 

if { [active_members MyPoolName] < 3 }{

to 

if { [active_members [LB::server pool]] < 3 }{

that'll work for most VIPs.

Note: be careful if an iRule that changes the pool as you could find that you're taking action on the status of a different pool than you intended.