Very High Disk Queue Length
Posted on 2008-10-28
I have a little bit of a mystery that I need some help to figure out.
I have a Server 2003 file server that suddenly is being hit very hard and need to figure out who/what is generating the I/O. This is ONLY a file server, no extra services like SQL, etc. The bottom line is that Disk Queue length is spiking to the the 60-80 mark, and the users connected to the shares are being disconnected because the server is clearly running out of resources and being overwhelmed.
I've already almost swapped out all of the hardware in the box, and at this point am looking for some type of software that will just show me the file activity that's going on between the clients and the shares. Obviously I can look at the Open Files list to see whats actually open, but that isn't telling me what is pounding on the disks. I'm looking for something simple and low level, like filemon for example, but filemon only shows local disk activity, not activity that's coming in and out over the network redirector.