We are running the following:
Windows Server 2008 R2 with IIS 7.
We are using IIS7 for our FTP server. The virtual driectory in IIS is a unc share which is on a 5 year old ish EMC storage array. The server and array are plugged into the same switch. When a user connects to the FTP server to download files from this path the transfer is very slow. If the virtual directroy is local the speed is fast.
The FTP server is in a single domain and there is no firewall between the FTP server and the shared storage. Because of the large numbers of FTP files and size of the files we can't store them locally on the FTP server.
I realise it is probably SMB causing this, is there any thing specific we could do to speed up the transfers. Also if we changed our FTP solution to something that wasnt IIS is there a product out there that would provide fast transfer speeds to UNC storage paths, by bypassing using SMB protocol. All of our infrastructure is a mixture of Windows server 2003, 2008 and windows 7 and XP clients.