Gentlemen and Ladies (if I said "Friends" or "My Fellow Downtrodden" you would think I was running in two months and a week): This may be related but I have not personally tested it as a solution to slow syncing problems. I originally found it as a slow
operation in VMs, where read and write are stacked and sensitive to changes.
Windows 7 appears to have made changes in the way it treats HD caching. It may even disable write-back caching on drives that were enabled, a theory I haven't the time to test. Normally, write-back caching is bad for integrity but goooood for performance,
and Windows has been trying to improve security.
Bottom line, connect the Briefcase drive to the source machine, set it up, then look at Manage my Computer/Disk Manager, right click on the header (the left gray area) and look at properties. Under the Policy tab, look to see if write cache is disabled.
Enable it (if you're willing to accept the usually slight risks), restart the computer and see how the sync to the removable goes.
Do the same on the destination. Frequently, old USB hardware, FireWire will not allow Write caching at all. If you can, do it. Now run a sync cycle test and see how much the speed has improved.
The caveats, disclaimers and DON'T SUE ME BECAUSE YOU SHOULD HAVE TESTED IT are that 1. A power failure could corrupt data. If you can/do, try enabling shadow copies for the drive. 2. Because of 1, it is VERY VERY VERY VERY important that you properly
prepare the drive for disconnect by unmounnting. If your concept of disconnecting a drive does not include clicking in the notification area, selecting a device and seeing a "It is safe to remove message" then stop here until somebody can set you right.
OK. So bottom line is to enable write cache on drives and sing the praises of the Great God Zamanawinkereliski. Make a backup first, sacrifice a virgin (if you can find one) and POST BACK TO LET US KNOW OF THE SUCCESS!!
P.S. If you are doing this on VMWare, another speed issue may be the new option to allow dynamic return of virtual memory.