confused about active-passive and active-active deployment

gisarchitect

Hello, folks

I am very confused about Active-Passive and Active-Active deployment in HA Environment.

My first question:

(do the concept of active-passive and active-active for ArcGIS Server only or it can be applied on the base deployment as a whole unit as this point is very vague in the documentation.

consider this point for the next two questions: I will install arcgis enterprise highly available (active-passive). I say (active-passive) because I have only one license for ArcGIS Enterprise. This is the only point I can understand about the concept of active-passive. That I buy only one license  for the two sites.

Second question:

regarding portal installation, when I install the portal on the second machine should join the existing portal or create a separate one. And what about the shared content? will be one directory or separate directories.

Third question:

Regarding ArcGIS Server installaion, when I install the second arcgis server should I join the existing site or create a new one. And what about the config-store and output directory will be the same for two machines or separate? Kindly need help

ReeseFacendini

To configure a highly available ArcGIS Enterprise, the "join site" method is the only option. Creating a new site will create a whole new Enterprise, and the two systems won't be aware of each other. The single license for Enterprise is okay, as during a joined site configuration the license is essentially shared across the system. You will need to authorize both installs of ArcGIS Server with the same license file, but there's no concern of being in violation of the licensing terms.

ArcGIS Server is the only component that functions in an active-active role. All machines participating in that site will throw their resources into the ring for all services. Portal for ArcGIS and ArcGIS DataStore function in an active-passive (primary-standby) role, where one machine is active until a failover event triggers the other machine to become primary.

Portal for ArcGIS needs to have the content folder (only the content folder) located on a network share to be accessed by both machines (i.e., \\myNetwork\shared\folder). ArcGIS Server will need to have both the config-store and arcgisserver directories on a network share as well (can be the same share or different). ArcGIS DataStore will read the information from ArcGIS Server, and there is no need (or way) to have DataStore configured to write to a network share.