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4 BIG-IP in one cluster?
Hello guys,
We have two data centers, with L2 link between the DCs. Is it possible to create one cluster (2 BIG-IP LTM in primary DC + 2 BIG-IP LTM in standby DC)?
And in case one of the services/links go down in primary location, the VIP for that specific service will be up in standby DC?
Is it a good practice?
Thank you.
It is sort of a good practice, but to shift traffic to a backup data center you would also use F5 DNS.
You would have two clusters, one in each datacenter. And F5 DNS would distribute traffic across data centers.
Take a look at this video: BIG-IP DNS Load Balancing Introduction
Otherwise you would have plenty of (virtual) hardware sitting idle.
It is sort of a good practice, but to shift traffic to a backup data center you would also use F5 DNS.
You would have two clusters, one in each datacenter. And F5 DNS would distribute traffic across data centers.
Take a look at this video: BIG-IP DNS Load Balancing Introduction
Otherwise you would have plenty of (virtual) hardware sitting idle.
On a second thought - without knowing more about your (cloud) infrastructure, your business requirements, the application itself, ... and so on, it is nearly impossible to provide you with a blueprint of a "silver bullet" architecture that will satisfy all your requirements.
From the top of my head, I could see a couple of scenarios.
- One LTM cluster of four BIG-IP devices with one or more traffic groups
- Two LTM clusters in two datacenters
- Four standalone LTM might also be possible, depending on your level of automation / config management
Option 2 and 3 combined with F5 DNS or F5 DNS Load Balancer Cloud Service and optional also with BIG-IQ.
Depending on how far you have developed this idea already, it might make sense to reach out to someone who can help you with the design of your topology.
- ShurikAltostratus
Thank you Daniel! I like the DNS solution, we will see what can be done here :)
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