I have an OES Netware 6.5 sp6 server that is connected to an iscsi san. When someone copys over a large amount of files ( over 1 gig) the Current disk requests go to over 100 and response time on the server slows down almost to stop until the copy is finished. Dirty cache buffers stay at 0.

I recently upgraded the memory to 4 gigs and moved off the on board nic and install an Intel nic card. Neither made any difference. I have 2 other Netware servers setup the same way connected to the SANS and they don't have this problem. I'm wondering if there is a setting in Netware I need to look at?