Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
|SharePoint 2013 to SharePoint Online migration: (links)||2||30|
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|Exchange DAG - maintenance question/ query||2||21|
|Exchange 2010 to O365 IMAP migration admin username format||11||37|