Hi Everybody,when I connect to my ReadyNAS trought a SMB connection I always obtain only 10MB/s read and write (it depends on the disk: less space seems to upgrade performance :shock: ). The funny side is that with the same machine (Ubuntu 14.04) and a CIFS connection I obtain 30 MB/s read/write which is still too slow for streaming 1080p movie but acceptable for large file moving... My RAIDiator has been upgrated to 5.3.11 and I experimented this situation with different desktop (Win7/8, Ubuntu, FreeBSD, etc.) and different HDD type. At the beginning I was using small 500GB WD on HCL but now I have upgraded to Seagate NAS 4TB with the same problem, even with slightly better performance (+1MB/s).The client are connected through a Netgear 8 port Gigabit Switch with cat.6 cable. So network connection should not be an issue.My new 104, with the same disk, perform much better.Any help is appreciated.T.

30 MB/s is way more than you need to stream a 1080p movie btw. BluRay is limited to 54 mbits (7 MB/s). 1080p downloads are typically around 8-10 mbits. (2 MB/s). So even 10 MB/s is more than enough to stream 1080p. If you are seeing stuttering or rebuffering, than that is due to something else (media issues, or possibly packet loss) - not the raw connection throughput.Can you confirm that the duo is negotiating a gigabit connection? 10 MB/s is usually what you see on fast ethernet (100 mbit)Also, if Anti-virus is off, the RN104 should be delivering about 2x the read speed you are getting.

Thank you for your fast reply. You are right, probably I should upgrade my HTPC :oops: , but my problem is essentially with file moving between DUO v2 NAS, client and USB disks. The 104 work flawlessy, except whe the temperature of the CPU goes till 80°C, but I have found in the forum a small script to increase Here my result, not based on software testing but real life esperiment:- ReadyNas DUO v2 - USB 2.0 disk: 20-25MB/s- ReadyNas DUO v2 CIFS: average 27MB/s- ReadyNas DUO v2 SMB: average 10MB/SType of file: from 500KB to 15GBThe 104 is fine for streaming, I just reported it as an example of good connection speed between my machine. I verified the performance of the duo v2 with desktop client sharing the same gigabit switch (netgear) and the same cable (BTW I use 50cm short cable).The only thing I do not undestand is the difference in performance between CIFS and SMB even on Unix machine.

Since you are getting 20-30 MB/s with other protocols, the network connection must negotiated as gigabit. Do you have a windows PC that you can use to test SMB? Also it might be worth doing a direct connection (directly connecting the ethernet cable between the PC and the NAS, and using static addresses to to connect). You don't need a crossover for that, your existing cables will work.What model switch are you using? Do you know if it supports 802.3x flow control?

Duo v2 can do 90+MB/s SMB read on large file in my setup, clients need to fast enough. Sent using Tapatalk

wli wrote:Duo v2 can do 90+MB/s SMB read on large file in my setup, clients need to fast enough.I agree it should be faster than 30, that was why I was asking about the connection details.90 sounds too high though. Maybe you could confirm with Nastester (http://www.808.dk/?code-csharp-nas-performance)

Readynas Duo v2 poor performance on SMB connection

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mdgm-ntgr
NETGEAR Employee Retired
Nov 11, 2014
There is some trade-off between better compatibility with modern OSes and performance with some models.

What version of RAIDiator are you running?
Nutty667
Aspirant
Nov 11, 2014
5.3.10.
I meant various nasware OS's.
mdgm-ntgr
NETGEAR Employee Retired
Nov 11, 2014
For the 104 updating to 6.2 once that is available should help performance.

As for the Duo v2 updates for legacy devices have a focus on bug fixes and security fixes.

Can you send me your logs (see link in my sig)?
Nutty667
Aspirant
Nov 11, 2014
Sent.
Just upgraded to the latest version which has some security fixes in. SMB share read speed seems marginally better, but I dont know if this is just as its rebooted. Getting around 38MB/s constant now.
mdgm-ntgr
NETGEAR Employee Retired
Nov 11, 2014
I see you last did a factory reset on 5.3.2. If you still encounter performance issues it may be worth considering doing a backup, factory default (wipes all data, settings, everything) and restoring your data from backup. This would get you a clean setup on the latest firmware. Over time some changes such as some filesystem improvements require a factory reset on newer firmware to take advantage of. We do our best to achieve good results with units last factory reset on very old firmware.

I see that one of your disks is a WD Green disk with a huge Load Cycle Count
Nutty667
Aspirant
Nov 11, 2014
Yeah I think the last time I did a factory reset was when some firmware update broke the system when it was switched off with power timer active.

Not sure how viable a factory reset is atm, as I dont have enough storage to back everything up. I may invest in another NAS soon.
Yeah the WD green is the older of the two drives. My previous green died and I replaced it with a red. What does Load Cycle Count refer to, and is it bad that its high ? Theres no actual errors reported in the SMART data.
I will probably replace that green with another red very soon.
Nutty667
Aspirant
Nov 11, 2014
Ahh isn't the Load Cycle Count referring to the number of times the head gets parked or something. I vaguely remember there being some kind of firmware issue causing that to get excessive on WD Green's.
mdgm-ntgr
NETGEAR Employee Retired
Nov 11, 2014
You can change the timer using idle3-tools: http://www.readynas.com/forum/viewtopic.php?f=11&t=59700

StephenB

Guru - Experienced User

Nov 11, 2014

Nutty667 wrote:
Ahh isn't the Load Cycle Count referring to the number of times the head gets parked or something. I vaguely remember there being some kind of firmware issue causing that to get excessive on WD Green's.

Nutty667 wrote:
Ahh isn't the Load Cycle Count referring to the number of times the head gets parked or something. I vaguely remember there being some kind of firmware issue causing that to get excessive on WD Green's.

Yes, the load cycle count does refer to the number of times the head gets parked. The parking threshold on the green drives is set appropriately for windows PCs, but is too short for linux, so the heads park very frequently.

There's a nominal spec of 300K load cycles, though my drives are well above that and aren't showing any issues.

You can run WDIDLE3 to adjust this threshold if you wish. Or just plan to replace the drive with another red at some point.

Nutty667
Aspirant
Nov 11, 2014
I'll stick another red in there, that drives getting on a bit anyway, and it'll align the drive models in use.
I'll try moving everything off after that and doing a factory reset, see it that improves things.

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Readynas Duo v2 poor performance on SMB connection

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