Hello,
I recently finished setting up a new server running Server Essentials 2012. Server is a brand new HP Microserver. The OS is installed on the harddrive the server came with, and all server shares are on a Raid Array made up of two brand new Western Digital Red drives.
The network is a Gb network. I wanted to test file transfer speeds, so I copy-pasted a random 3Gb folder full of various files from a Win7 client to a share on the server. The transfer speed barely ever makes it past 5Mb/s, and I've even seen it drop to Kb/s.
The Raid setup I have is a not hardware - it's the Raid provided with the Microserver, which only allows Write-thru. I understand that this is not as good performance-wise as Raid with cache, but the transfer speed is so ridiculously slow that there has to be another problem somewhere.
To make sure, I ran ATTO on the server's Raid array via remote desktop. Results attached. Seems acceptable to me.
So knowing that the network is Gb, and the raid'd drives don't seem to be the problem, what could be?
I followed the instruction at the link below to disable SMB signing and Secure Channel:
http://mctexpert.blogspot.ca/2011/02/disable-smb-signing.html
Even with this done, the transfer starts at 12-13 Mb/s and drop to 3 within 20 seconds.
I've also attached a screenshot of the resource monitor of the server while the transfer is in progress. CPU, disk I/O and Ram utilization all are all low.
I'm really lost here. Any ideas what could be causing such a slow transfer?
