Readynas Duo V2 speed drop

Anyone else having speed issues with the Duo V2? Can't get above 50MBs write?

Here are my computer specs from the computer that I use to copy to the Readynas;


Intel I7 2600k at 4.5ghz
Asus Maximus Extreme Z - 2Gigabit ports
Palit GTX 680
Corsair Neutron 120gb SSD
Corsair force gt 120 SSD
Western digital black 2TB
Western Digital green 2TB
16gb corsair vengence 1866mhz

Both my Computer and my NAS go into a Prosafe Gigabit 5 port switch and then connect to my router via a CAT5e cable, however as the traffic when file copying it done locally in the switch it doesn't even travel down to my router. What is wrong for me to be only getting 40MB/s, I have included a screenshot of a typical transfer, how have I lost 20MB/s. What can I do on the Readynas to rectify this as I would really really like my performance back.

For anyone else that may have trouble in the future I lost performance due to the latest features that are present in the Duo V2, they must use up CPU cycles that slow down file transfer. I reflashed the firmware down to 5.3.5 and know my performance is back to 59MBs as before.

Hope that helps anyone else that may have trouble in the future :-)

Netgear please address this is possible

Just a post to say I am still experiencing problems with speed, after one day in use speed dropped back to 30's. A readynas reboot fixed this.

Is this a hardware or software fault? It's becoming annoying, I realise I am talking to myself at this point.

Average read/write speeds for DUO v2 are probably between 30-50 MB/s what you have to remember is as you copy more data to the volume and run more addons the speed is going to drop a bit due to resources being used and the time it takes to seek the hard disk for data, these are my average speeds 40 MB/s Read and 35 MB/s Write and i know that is not a network limitation because i have benched my router at 112 MB/s throughput.

HERBIEO wrote:

Average read/write speeds for DUO v2 are probably between 30-50 MB/s what you have to remember is as you copy more data to the volume and run more addons the speed is going to drop a bit due to resources being used and the time it takes to seek the hard disk for data, these are my average speeds 40 MB/s Read and 35 MB/s Write and i know that is not a network limitation because i have benched my router at 112 MB/s throughput.

Thanks for the reply and I would accept that however the device has been rock solid since January when I bought it and has always maintained a 60MB/s transfer. I am now running 5.3.5 and I don't use any apps or extras this is purely as streamer. I have also just put a new 3TB drive in, I can't think what is slowing it down as its nothing but a streamer.

I had one of my drives fail, a WD green 2tb, so I replaced it with one of the new Red Nas drives. So I have one green, one red.
All seems well, but my speeds are really slow as well. I haven't benchmarked since I originally set the nas up, but I'm only getting about 30MB/s read speed over a wired gigabit network.

I'm still on 5.3.5 firmware. I did a reboot and volume scan and the speed went up a tad after that. But not by much.
I mean its fine for me, but it'd be nice if it was quicker.

What confusing is tho, is the access light doesn't seem to flash permantly. As if the NAS isn't actually disk bottlenecked. Wonder if my cables are a bit dodge..

HERBIEO wrote:

Average read/write speeds for DUO v2 are probably between 30-50 MB/s what you have to remember is as you copy more data to the volume and run more addons the speed is going to drop a bit due to resources being used and the time it takes to seek the hard disk for data, these are my average speeds 40 MB/s Read and 35 MB/s Write and i know that is not a network limitation because i have benched my router at 112 MB/s throughput.

This is slow.
I have 52MB/s write and 74MB/s read / constant speed (very big file) 3.6TB volume / 1.6TB used / 211766 files

Of course the PC disk affects the results also. Some laptop drives are fairly slow.

I still can't get back my previous performance with this device, this is a MKV transfer that starts out for a while at 30Mbps and then jumped up to around 50Mbps. All I am using on the Readynas V2 Duo is Http Https SMB and NFS, no addons or anything else no backups nothing. Cant understand what the issue is.

How can I troubleshoot this, I have recently installed a brand new 3TB drive and it still has the same issues?