SharePoint Server 2013 Service Pack 1 Installation Order

Question

I have a question regarding the order of SharePoint 2013 SP 1 installation.

My scenario goes as follows:

I installed SharePoint on a server as a single server farm where this server hosts Central Administration and also acts as a Web Front, let's assume this is server A , this server has Oct 2015 CU installed on it without SP 1 (build number is 15.0.4763.1000).

Now I have another server (server B) that i want to join to this current farm and I already have installed SharePoint with SP 1 on this new server, so by running the configuration wizard on server B and after I retrieved the configuration database that I want to connect to, I was given a message saying that SP 1 is not installed on server A. So I started installing SP 1 on Server A, so my question is if I ran the configuration wizard after the installation of SP1 completes on server A, would it apply a new build number ? or there's no need to run the configuration wizard since the build version of Oct 2015 CU is ​15.0.4763.1000 while the SP 1 build version is 15.0.4569.1000 according to the reference below

http://www.toddklindt.com/blog/Regressions/SP2013SP1Mark2.aspx

Please share your ideas with me.

Answer 1

that is little strange for me, Because Oct 2015 CU required the SP1 installed on the Server. it is perquisite.

But now, once you installed the SP1, you have to run the PSConfig Wizard in order to upgrade the Schema.

I am confused, may be it wont let you install the SharePoint, because your SharePoint is already on the higher number.

Answer 2

After every patch installation you do you have to run SharePoint Configuration Wizard either from the GUI och using PowerShell. Otherwise the Configuration Database isn't updated with the new patch.

Answer 3

You have to run the configuration after every update on each server. If you have 3 servers, than you need to run the configuration wizard after installing the update on the servers on each server.