What is difference between DNAC-witness-2.1.2.4.ova and normal DNAC?

[interfacedy]

Hello, What is difference between DNAC-witness-2.1.2.4.ova and normal DNAC? What does that mean with witness? Thanks

[PabMar]

Hi Interfacedy,

The DNA Center witness is used when deploying DNA Center in Disaster Recovery.

The Witness is installed on a 3rd site, it is used to avoid a split brain scenario. DNA Center uses the witness site to arbitrate between the active and standby sites, allowing only one active site at any given time.

Hope that helps.

Regards.

[interfacedy]

Thanks! So witness is not main component. Looks like dnac cannot work without main component(ios). Why we only can see witness in cisco download website and cannot see main ios? Where is it?

[PabMar · Accepted solution]

Hi interfacedy,

Just had a look at the downloads page for 2.1.2.4, the .ova (~2.5GB file size) is the witness and you also have the .iso (~22.8GB file size) which is the DNA Center image.

Regards.

[interfacedy]

Thanks! Looks like home lab cannot run it due to its ram requirement