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Criteria for adding an ArcGIS Server machine to a site

The Join Site operation adds a new machine to an existing ArcGIS Server site. This can be done temporarily to migrate to new machines, or more permanently to increase the resources and processing power of your server site. If you are using Join Site to migrate, the new and existing machines do not need to match, but if you intend to keep all machines in the site, we recommend you ensure they meet the following criteria:

  • The new machine must be running on the same operating system platform as the other ArcGIS Server machines in the site. It is recommended that you use the same operating system version and hardware resources for all machines in your site. For example, if you have a site comprised of ArcGIS Server machines, each running on Windows Server 2008 R2 with a 3 GHz processor and 8 GB of RAM, the machine you add to the site should also have the same operating system and hardware specifications.
  • It must be at the same version number as the other ArcGIS Server machines in the site.
  • It must have the same license applied to it as the other ArcGIS Server machines in the site.
  • It must be able to read and write to the site's configuration store and server directories. See About the configuration store and About server directories to learn about this requirement.
  • It must be running ArcGIS Server under the same ArcGIS Server account as all the other ArcGIS Server machines in the site. This can be a domain account, or it can be a local account with a name and password that are identical on all machines. See The ArcGIS Server account to learn more about this account.
  • It must be able to communicate with all the other ArcGIS Server machines in the site through the ports listed in Ports used by ArcGIS Server. This may require adjustment of firewall settings.
  • It must be able to read any data referenced by services on the site. A good way to verify this is to check whether the machine has permissions to all the data storage locations registered with the site. See About registering your data with ArcGIS Server to learn more about these registered locations.