Permissoins required for doing backup job in SharePoint 2010

Hi All, The below permissions are required on the backup folder you created to complete the required backup job.
1. Sharepoint timer service account --i.e on which account the timer jobs are running in your farm --> go to services.msc and check the service properties

2. SQL server service instance -- i.e. on which account, the sql service is running in your database server -->go to services.msc and check the service properties

3. The user who is doing the backup job--

These above users should have full control on the backup folder

For better performance, create the backup folder in the sql server itself, so that the network speed would not be a problem.Later you can copy the content to network drive for restore operation.