Enabling Jumbo Frames on NV+ V2

There is no jumbo frames support on the NV+ v2 yet it may come in future firmware releases.

The FAQ tags have to be updated, many v1 articles don't apply to the v2.

meh.

Thanks for the quick reply. This may mark the end of my troubled journey with this product. I just filed a case (#19684102) asking for a refund or replacement since the unit doesn't perform as advertised in its FAQ.

I already endured months of waiting for the firmware to fix the "Error 0x80070027: Disk is full" condition that prevented its use. I could have paid a lot less for the unit if I had known to wait until that error had been fixed. This situation feels like round two.

I'll report back with Support's response.

Best,
Michael.

Hello Michael,

I look at the kb article "What performance can I expect with jumbo frames enabled?". This article point to a lab (http://www.readynas.com/?p=310) about optimizing the ReadyNAS performance. This lab uses ReadyNAS NV+ and do not mention v2 at all. Also both hadware and firmware manuals do not mention anything about jumbo frames ([url]http://www.downloads.netgear.com/files/GDC/READYNAS%20ARM-PLATFORM%20(DUO%20V2,%20NV+%20V2)/RAIDiator%205.3%20SW%20Manual_5Sep12.pdf [/url}and http://www.downloads.netgear.com/files/ ... Mar-12.pdf). I also checked few official reviews for ReadyNAS NV+ v2 and they do not mention anything about jumbo frames options. for example look at this article: http://www.cnet.com/network-storage/net ... 61085.html.

Jumbo frames support may come in a future firmware update i would think the hardware supports it most gigabit ethernet ports do i think its a marvell ethernet port so hopefully it does.
and looking at my diagnostics.log it shows this.
Disks
-------------------------------
Passed diagnostics.

Memory
-------------------------------
Passed diagnostics.

Network
-------------------------------
Passed diagnostics.

Performance
-------------------------------
* Jumbo frames are disabled on interface 1. If both your switch and clients support jumbo frames, you can enhance your write performance by enabling jumbo frames on this interface.

Volume
-------------------------------
Passed diagnostics.

you can enable MTU 9000 (Jumbo Frames) by adding line in /etc/default/services configuration file

JUMBO_FRAMES_eth0=1

SSH access to NAS device is required and little knowledge of VI editor.

janforman wrote:
you can enable MTU 9000 (Jumbo Frames) by adding line in /etc/default/services configuration file JUMBO_FRAMES_eth0=1 SSH access to NAS device is required and little knowledge of VI editor.

Have you successfully done this on your Duo v2 with no problems after ?

Yes it's normal. MTU is 9000 after (can be verified by ifconfig)
Every other networking card must be set to this value and switch must support it - if not you get slower speed than without it.

janforman wrote:
Yes it's normal. MTU is 9000 after (can be verified by ifconfig) Every other networking card must be set to this value and switch must support it - if not you get slower speed than without it.

Even if the full path supports jumbo frames, you might still see slower speeds - so you should compare throughput before and after.