I would start by checking the hard drives used for both the exchange database you are exporting from and the location you are exporting the PST to. Sounds like the disk latency or reponse time is getting
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.
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync.
To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…