Initial findings with new Duo V2

tim_hamblin wrote:
However, going back to the GUI - you can't adjust the MTU, and currently it is not set up for Jumbo Packets ('ping -f -l' can easily prove that), would this improve performance?

Yes, Jumbo Frames would improve performance, however performance is already pretty quick compared with Duo v1. Users not knowing what they're doing enabling Jumbo Frames can cause problems. However if you want it you could SSH in and edit /etc/network/interfaces adding e.g. MTU=9000 for the line for "eth0".

tim_hamblin wrote:
ReadyNAS Remote: Doesn't work with iOS devices (iPhone/iPad, etc) as yet. Hopefully resolved with new firmware.

Install the add-on posted by chirpa:

chirpa wrote:
To use Remote on iPhone/Android (via FTP) on Duo v2, try this add-on: http://www.readynas.com/download/addons/arm/5.3/RemoteiPhone-arm_1.1.bin (enables the FTP service on the Remote network interface) Future Remote or iPhone will have the option to use CIFS instead of FTP. Not sure when that will go through the App Store approval process.

tim_hamblin wrote:

Volume Scan (i_block errors): Here's my main issue - which might be a problem with my particular Duo V2... When I did a Restart with Volume Scan, I would get a notification email about 'Volume scan found and corrected errors'. These errors were all related to: Pass 1: Checking inodes, blocks, and sizes - Inode 26181655, i_blocks is 739472, should be 739480. Fix? yes (for about 4-10 different Inode/i_block references). This occured after heavy writes made to the Duo. Once the Volume Scan corrected these errors, subsequent restarts had no errors until a large amount of more data was copied to the Duo.

Would suggest opening a tech support (http://www.readynas.com/support) case and working with them on this issue. Please post your case number in case a tech support representative sees this thread.

edit: Don't edit /etc/network/interfaces. Edit /etc/default/services. There is a line you can add that should enable jumbo frames: "JUMBO_FRAMES_eth0=0" (no quotes). An OS re-install should disable Jumbo Frames if this doesn't work.