Sharepoint -Creating document libraries at run time and add and delete permission at runtime--taking too much time in C#(SOM)

Question

Hi,
I am creating a batch job in C# and my requirement is as follows.
My Requirement is to create multiple document libraries and after breaking inheritance  I remove all the groups which that library inherits and add some groups which are created for that library.Initially when libraries are less the creation
of library is good but once it gets increased ,system takes lot of time.I will have to create around 2000 libraries and almost 600-700 groups.
Q.1 ) What would be my approach?
Q.2) Do we have powershell command which can break inheritance and delete all the default groups in a one go (without looping) of a library?
Please suggests.

Answer 1

Hi,
It is recommended to create timer job for the time consuming job when in SharePoint environment.
About creating timer job:
http://www.codeproject.com/Tips/634208/Create-and-Deploy-Custom-Timer-Job-Definition-in-S
If you want to do it via PowerShell, the links below would be helpful.
About how to stop inheriting permission for SharePoint list and give custom permission using PowerShell:
http://www.sharepointlovers.com/sharepoint-powershell-command-to-stop-inheriting-permission-for-sharepoint-list-and-give-custom-permission/
About How to remove users and groups from a SharePoint list using PowerShell:
https://sharepointthinking.wordpress.com/2012/10/01/how-to-remove-users-and-groups-from-a-sharepoint-list-using-powershell/
Thanks
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