Mediocre performance- Why?

Have you tried a direct-connection?: http://www.readynas.com/kb/faq/boot/how_do_i_direct-connect_between_readynas_and_pc_or_mac

I just did. Same transfer speeds. ~ 14.5MB/s

Does 4.1.9 beta help?: http://www.readynas.com/forum/viewtopic.php?f=17&t=59222

okay, that did help a bit. I'm getting about 19MB/s. What should I be getting?

That's probably about right for the Duo v1.

When did you purchase this NAS?

I agree. I get about the same on upload with my Duo and 4.1.9. Large file downloads are quicker at around 28MB/s.

I would say that the speeds are correct for the Duo. The only other thing that I could think of for increasing performance is to enable jumbo frames. The entire network must be able to handle the jumbo frames though. Otherwise, you are achieving good speeds from the Duo.

Thank you for the help/info.

I think I’m willing to spend a little $ to get better results. The Duo is about 1.5 - 2 years old.

I currently have the Linksys E3000 router (No jumbo support)
What type of performance gain should be expected if I spend the money for a new router with jumbo support?
Can I simply add a switch with jumbo support to my E3000 or must the router and the switch both support jumbo? In other words: if both the PC and the NAS are cat6 connected to the switch behind the router, is their communication direct or does the router still play a part in the LAN file transfer?

I don’t think jumbo frames offer enough increase in performance for me to be happy. If I decide to purchase a new/higher end NAS what is recommended? I have seen reports here of 100MB/s. Is there a NAS available that I could expect those results from considering my other components?

Thanks again-

Jumbo Frames will slightly increase performance over what you are currently seeing. Here you can see the performance that was achieved in an environment with jumbo frames. It will also list all hardware involved for the Duo. However, with an Ultra you may see the performance that you are seeking, you can see the performance of those here.

tscottemail wrote:
Can I simply add a switch with jumbo support to my E3000 or must the router and the switch both support jumbo? In other words: if both the PC and the NAS are cat6 connected to the switch behind the router, is their communication direct or does the router still play a part in the LAN file transfer?-

Inserting the switch is all you should need to do.

Though you are depending on the ReadyNAS (and your PC) to detect connections where jumbo frames won't work and apply the proper MTU (for instance WiFi or internet access). If this detection fails, you will end up with poor performance (perhaps no connection, perhaps highly fragmented packets).