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Q: Application Server Failed - Service Applications? My only application server has failed, though I had configured Central Administration with high availability (its accessible from my web front end server). I tried Googling my problem, though most results were about moving Search Service Application and/or starting with a fresh farm. 
My farm currently stands:


*

*Web applications are on WFEs, so they still load.

*Databases are still live in my SQL servers.

*All SharePoint servers are 2013.

*Service applications wont load - cant search, change managed metadata.

*Application server that failed was called APP1. New server should, ideally, also be called APP1. 


From what I understand and have read, application servers are scaleable, so my question stands as: In this scenario, to restore access to all of my service applications, should I join a new application server to my farm  using Microsofts method (http://technet.microsoft.com/en-us/library/cc261752(v=office.15).aspx), start Central Administration on the new application server, delete the service applications, and provision them again? 
Or is there an option to simply start them on the new application server, and SharePoint will tie the knots together as if the app server had never failed? 

A: You can do this.


*

*Install the SharePoint(same version) on new App server

*Join the server to the farm and host CA on it.

*Now from Central Admin > manage Services and start the all required services on few APP server.

*You have to update your Search topology and if you are using the UPA Sync then you have to start that on new server as well.

*after testing, remove the bad server from farm.


But if you dont have enough data and i would go to delete the service applications and recreate it on new server after joining.

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