I know this problem has been brought up before and I have read both Titles: Netware 5 - Slow - very slow when copying files! and NSS very slow when copy/write large files.
Background: I'm running Netware 6.5SP5 OES on a PowerEdge 2850, dual Xeon processors, 4 GB RAM, SCSI drives hardware RAID 5. The volumes are NSS, file compression off, NSS /CacheBalance=85 and /ClosedFileCacheSize=100000.
It has an Intel PRO 1000 NIC with the latest drivers 7.65 over pure IP. IPX is not bound to any NIC. I'm running Windows XP SP2, Novell Client 4.91 SP2 IP only.
Problem: Copying files to the server is blazing fast; 60 seconds for 123MB folder. Downloading files from the server is the problem; it takes 5 to 6 minutes for the same 123MB folder.
Things I've done so far: I've tried all manner of NIC settings, auto-configuration, full-duplex, half duplex, 100MB/1000MB and different switches. I've tried file commit on/off and cache on/off on both the server and client, Hyperthreading on the server is OFF, I uninstalled Symantec AV on the server.
I have run out of ideas and sincerely need help.