Too slow speeds with Duo V1

I suspect you mean megabytes per second? It should do around 20 MB/s, and possibly a bit more. Note that reads from the NAS are faster than writes.

Which Netgear Router do you have? More than likely it doesn't support jumbo frames. Also, are your PC and Macbook running gigabit?

BTW, on 802.11g wifi (54 mbs link speed), you would be maxed out at 2 MB/s, and with 802.11n you're normally maxed out at around 8 MB/s. so those WiFi speeds are as expected

The router is netgear cg3000, you can see the specs here http://www.netgear.dk/service-provider/products/routers-and-gateways/cable-gateways/CG3000_CG3100.aspx.
You may even notice that the readynas is included in the network picture at the bottom of the page.
It should be more than capable to handle a faster speed since It can work with 400mbits. However my worry is that the speed is still the same when im conneting the Readynas directly to the computer through a cat-5e cable. By no means it should be slower than USB, and Usb can easily handle 20mb/s?

At this very moment I tried connecting to my 3-year old desktop PC. It has two cards. The 100mbps card could not read more than 10mb/s but the gigabit could easily read with 30. However when writing it could only perform 6mb/s. (this is all wired directly to the Readynas). I really can't see any sense in this :)


The macbook has a 1000base-t gigabit card and is limted to 7mb/s.

andyp wrote:
The router is netgear cg3000, you can see the specs here http://www.netgear.dk/service-provider/ ... G3100.aspx. You may even notice that the readynas is included in the network picture at the bottom of the page. It should be more than capable to handle a faster speed since It can work with 400mbits.

The 400 mbits speed is referring to the docsis. It should be faster in routing traffic between LAN ports. The reason I asked was to pursue your jumbo-frame comment. Very few routers support jumbo frames. Since the CG3100 doesn't explicitly list them, I'd say it doesn't. So you should probably turn them off in all your equipment. If you want to look into that further, you can test your network MTU with ping.

andyp wrote:
...However my worry is that the speed is still the same when im conneting the Readynas directly to the computer through a cat-5e cable. By no means it should be slower than USB, and Usb can easily handle 20mb/s?

It should be comparable to USB drives circa 2008, it is not faster. Note this is not just about the network. Your Duo v1 has a sparc processor and 256 mbytes of ram. Your phone probably has a faster CPU.

andyp wrote:
At this very moment I tried connecting to my 3-year old desktop PC. It has two cards. The 100mbps card could not read more than 10mb/s but the gigabit could easily read with 30. However when writing it could only perform 6mb/s. (this is all wired directly to the Readynas). I really can't see any sense in this :) The macbook has a 1000base-t gigabit card and is limted to 7mb/s.

I suggest using the normal capital letters for megabytes per second.

There are some performance expectations here:
http://home.bott.ca/webserver/?p=363
http://www.readynas.com/?p=177#Performance

Though in practice it will run slower than those numbers. You don't want to turn journalling off unless you have a UPS connected to the Duo (btw I recommend a UPS with any NAS).

I can't speak for the OSX performance, as I don't have a Mac. Though the Mac universe is quite different now than it was 4 years ago; in particular Apple has totally changed their SMB/CIFS stack. Last time I measured my duo v1 speeds (some years ago) I was getting in the low 20s.

So, you should be getting faster speeds on the Mac and new PC for wired, and you should be getting faster write speeds on the old PC. I would look at the write speed problem on the old PC first. Check the SMART+ stats on both drives (status->health), and look at the network stats (networks->interfaces). You can clear the counts for the network stats before the test on the duo v1 (which is convenient).

I'd also compare the NIC settings on the new PC with the old. Also make sure jumbo frames are off on all devices.

Thanks, the reason i used the old pc was to see whether the problem was on the readynas or my other computers. Obviously it could read 30megabyters per second, so it is definitely capable of handling those speeds, but why am I not seing this performance on the Macbook or on the other devices? Im suspecting that it can only be some software configuration that is reducing the speed, but even when everything is set to standard settings it is still the same speed over again.

andyp wrote:

Thanks, the reason i used the old pc was to see whether the problem was on the readynas or my other computers. Obviously it could read 30megabyters per second, so it is definitely capable of handling those speeds, but why am I not seing this performance on the Macbook or on the other devices? Im suspecting that it can only be some software configuration that is reducing the speed, but even when everything is set to standard settings it is still the same speed over again.

I am suggesting a systematic approach. If you resolve your write-speed problem on the old PC first, then you will know for sure that your NAS is running properly.

After the write speed issue is sorted, then move on to the newer devices on wired ethernet, and finally to wifi.

To that end, I suggest looking at the jumbo frame settings on the old PC, looking at the SMART+ stats for disk drive issues on the NAS, and the network stats on the NAS for signs of network troubles. Also, if both NIC cards are enabled on the old PC, disconnect the fast ethernet card from the network.

BTW, what disk drives do you have running in the NAS?

I just tested the different things but without any solution.
-Jumbo frames is turned off
-The disk in the NAS is a 1TB, which came with the NAS. I even plugged it directly into my desktop and saw write/readspeeds at 70/120 mb/s. However the OS was unable to mount the disk, I suppose that's just a matter of format.
-The network stats displayed no errors.

It really seems that everything works as it should, but I am not moving away from the slow performance.

The readynas is really a machine full of surprises and its actions seem almost random to me. A week after giving up on the speed, my mac is finally showing a great rate when the cable is directly connected, 20+ Mb/s. This leaves the issue with the 10mb/s limitation to my router or my wifi setup.
Now, having said that my router indeed supports the Readynas and can handle gigabit connections, what possible setup configurations could be faulty enough decrease the speed?