I have recently installed a MacMini at a clients of mine, running a Pegasus R4 Thunderbolt RAID. My client is noting extensive lag times when copying to the server. He notes that the progress bar completes and then it hangs there for a min or two, then releases. The same is happening when they attempt to delete, it lags for some time. I would love some assitance if anyone can help. Thanks.
You'll need to give us more information on whats going on. How fast is the pipe, what kind of data transferring, how many users, what protocol, etc.