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What steps need to be followed if one of the HA device is out of order ?

Sarovani
Cirrostratus
Cirrostratus

Hi Experts ,

 

In production environment if one of the F5 device from HA pair goes out of order ( does not power on due to hardware issue ) , What steps we need to follow while replacing that device with new RMA device . ?

1.In this scenario how do we start building our new RMA device ?

2.How do we configure HA - Should we need to disable anything on Active device ?

 

Please advice .....

 

 

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2 REPLIES 2

CA_Valli
Cirrocumulus
Cirrocumulus

Steps to be done will be:

  • license RMA unit
  • rekey RMA unit (f5mku) for succesful import of encrypted config
  • restore UCS backup using no-license option (that will include all HA configurations and certs already)

You can optionally force offline RMA unit until you're ready to have it inline, I don't remember if this has an impact on HA link communication, it used to in older versions

  • rack, wire (maybe only HA+mgt link first, then traffic links when unit has s.by role) & boot RMA unit
  • optionally, failover the cluster and confirm traffic flows as intended
  • success

Also if there is a DNS module there specific requerments for RMA:

 

https://support.f5.com/csp/article/K14083

 

 

Also see:

 

https://support.f5.com/csp/article/K12880