I have a CS220 and I noticed recently that one of my iSCSI volumes is not releasing my space when I delete files on the volume. I am running version 1.4.11 on my Nimble and the windows server is a 2012 R2 std server. The Nimble volume shows me over 90% full at 1.39tb but on my Windows server it shows I have 58gb used on the volume. I thought Windows 2012 had Trim on by default but it doesn't seem to be doing it. I was also told it could be my application running on the server but the application tech support said "No, it works only with the O/S so it has to be the O/S.
Any ideas how to regain my space back on my Nimble?