Hi there, I've struggled for years dealing with a mysterious NAS problem (a dns-323, two of them actually). It seems to work at first, then it slows to a crawl. I think I've finally clued in that its Finder that is screwing things up. Finder seems to work at first, my NAS shows up in Finder, I can click to connect, browse files, etc, all looks good. And if I start a fresh connection and immediately transfer one big file, I get about 15-20 MB/sec data transfer rates, just as it should be. However, if I start browsing around the NAS using Finder, the connection immediately slows to a crawl. So I started avoiding Finder and using Terminal commmands for everything, I mount like this:
mount -v -w -t smbfs //user:password@nas1/nas1 /Volumes/nas1
That works fine. I then can use any one of several protocols to transfer files to/from the nas, including cp, rsync, etc... As files transfer, I can use a separate terminal window to monitor the progress of the transfer. For example, if I'm copying a directory from my NAS back to my local disk, I do something like "du -sh /Users/rob/new-directory" to watch the directory grow in size, and sure enough its giving me anywere from 10-20MB/sec depending on if their small files or one big file, as to be expected... All good, right?
HOWEVER, as soon as I open a Finder window (while the copy processs is still running from the terminal window) and then navigate to my NAS, the copy process immediately slows down to a crawl, like, 1MB per minute. And it never recovers.... All subsequent interaction with the NAS is hopelessly slow. The only way to fix it is to kill the copy job, unmount/eject the NAS and start a new NAS connection. I've repeated this several times and get the same results always...
BTW - I believe I can even connect with Finder (rather tham mounting manually from a terminal command line). But as soon as Finder tries to browse any files or directories on the NAS, thats when it chokes... I just avoid Finder completely because I don't want to accidentally kill a big copy/rsync job in progress...
Sooo... what the heck is going on, why does Finder freeze up my connection??? Is there anything I can do? It would sure be nice if Finder worked as well as terminal commands. Any help, hints or thoughts would be much appreciated!
BTW - I'm running a MacPro (early 2009) w/ OS X 10.6.8