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I am thinking of patching App Fabric/Distributed Cache service in SharePoint 2013 farm. I have 1 WFE and 1 App Server and I only have one host in my cache cluster that is in WFE. Now while applying CU update do I have to run executable in both servers or the server where cache host is running.

Thank You

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AppFabric CU(latest is CU5) is basically for windows server. So this should apply to all server in the farm irrespective those server are part of Cache cluster or not. It is normally good practice that all server should be on the same patch level.

The process here is that you need to patch one machine at a time according to these steps:

  1. Shut down the service instance on one machine
  2. Patch AppFabric 1.1
  3. Post-patch operations
  4. Start the service instance
  5. Restart from 1 on the next machine

Do not do servers in parallel unless you have a massive amount of servers and can handle that extra load/redundancy!

How to patch the Distributed Cache in SharePoint 2013

Update to Guidance for Patching AppFabric on SharePoint 2013 Distributed Cache Servers

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    Current CU is CU5 - support.microsoft.com/en-us/kb/2932678 – Trevor Seward Mar 27 '15 at 16:01
  • My bad, I just noticed it. – Waqas Sarwar MVP Mar 27 '15 at 16:04
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    Another Question... Although App fabric Services are there in both servers but services in App Server its disabled. after patching both servers will it re-enable the service in app server? – allegro octopus Mar 27 '15 at 18:18
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    Waqas I tried to run the exe for CU5 I received an error in my cachehost : The feature you are trying to use is on a network resources that is unavailable" I tried to follow the instruction isn KB article as part of known issues but the packages folder never creates appfabric-1.1-forwindows-server-64.msi file. So I cant move further. I ran that to different server in farm it worked. – allegro octopus Mar 30 '15 at 16:26

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