I would love it if they did create a Windows 2012 LUN type, It wouldn't differ from the Windows_2008 type in any way other than it would be easier to track and lead to less customer confusion.   I have the request out to do it already logged, I still have fingers crossed. ... View more

So you want to select the correct LUN type to solve the Alignment problem. A Windows type LUN is aligned for Windows 2003, and Windows_GPT was to support GPT volumes that are aligned slightly differently. Since then, Microsoft has updated the OS (2008 and newer) to respect alignment and fixed both the OS as well as the GPT type Volumes. So in the future ALWAYs use Windows_2008 as the LUN type to stay aligned. Now, when Hyper-V started increasing in popularity, NetApp decided to come out with a new LUN type to support Hyper-V which happens to match the Windows_2008 LUN type. The difference between the Windows_2008 and HyperV LUN type is ONLY that our "SnapManager for Hyper-V" code can quickly identify Hyper-V LUNs, and enabled VSS backups. As for bandwidth, once your LUN types are correct, your performance should see a significant boost, as well as your DeDuplication rate. Also commands that use Clones will also see significant speed increases (which is why turning off ODX is seen as a recommendation above) So again. If you are using Windows 2008 or newer (even if they are GPT) select the "Windows_2008" LUN Type. If the LUN is going to be deployed as a Hyper-V VM, then select "Hyper-V" only because it will allow you later to deploy SnapManager for Hyper-V, but otherwise it could use "Windows_2008" without alignment problems. ... View more

Actually you can only get 400MB per second because 4Gb/s FC uses 8b10b encoding which mean that you divide by 10 instead of by 8 when converting bits to bytes. So the speed of 4Gb/s FC (actually 4.25Ghz speed) is actually closer to 400MB/s instead of 500MB/s/ ... View more

Wouldnt a better way to do this be the method of taking the running-config and saving it to the persistent config. This makes a lot more sense then hand editing the files and less prone to error.      Command is as follows.           Get-NANetActiveConfig | Set-NANetPersistentConfig ... View more