I'm having performance issues with Exchange. My main office is in NYC but I also have a remote office in london with at least three users who connect to the nyc server via a p2p T1 (users in nyc are not complaining of slowness although Ive seene exchange work faster). The users in London are complaining that exchange is very very slow. I analyzed the partition where the exchange Istore is seating and found it was heavily fragmented. [See attach]. My question is, do I need to do an offline exchange defrag to resolved this? Should I run windows Disk defragmenter ? or Both? Please advise.