Network speed limited to ~40MB/s

Hi,
I am new with OMV - please be patient
Recently I've bought a hardware for DIY NAS
- Q1900B-IT motherbord wit SOC Celeron I1900 (quad core etc...)
(http://www.asrock.com/mb/Intel/Q1900B-ITX/index.pl.asp)
- WD RED 1TB sata 3,
- old hdd 2,5'' around 60GB (for system disk)
- 2GB of ram.
I've installed newest version of OMV (openmediavault_1.0.20_amd64) and made first configuration.
I have an issue with file transfer. I using notebook (NIC- INTEL 82579LM GIGABIT) connected with ethernet cable directly to my nas (Realtec based card).
Transfers are about 40MB/s - using CrystalDiskInfo 6.2.2 or simple smb sharing on windows 8.1 (eg. 1,4GB of data). I know that my computer is not an issue (transfer tested between my notebook and PREBUILD NAS eg. Netgear RN3220, Qnap TS-469L).
Maybe someone has the same issue?
PS. sorry for my English

In addition I've performed "hdparm -t dev/sd*" and:
- WD RED Timing buffered.....: 113MB/s
- hdd for os Timing buffered....: around 40MB/s - similar to speed in CrystalDisk and SMB sharing..???

OK, below tere are results of hdparm -tT depends of devices.

Zitat

/dev/sda:
Timing cached reads: 3450 MB in 2.00 seconds = 1725.64 MB/sec
Timing buffered disk reads: 112 MB in 3.02 seconds = 37.14 MB/sec
root@nasik:~# hdparm -tT /dev/sdb

/dev/sdb:
Timing cached reads: 3352 MB in 2.00 seconds = 1676.48 MB/sec
Timing buffered disk reads: 436 MB in 3.01 seconds = 145.05 MB/sec
root@nasik:~#

Alles anzeigen

sda - hdd with OS
sdb - WD RED

Hi,
Today i've checked my hardware with ubuntu server. I've installed os on usb3.0 pendrive (r/w speeds around 80-90MB/s) and after that i performed test using iperf tool. Results was similar to those in previous post.

Zitat

Transfers are about 40MB/s -

....
Also I've tried old kernel 3.16 form OMV-extras.

--- and maybe I should set a new thread about my case?

I don't think so,
1) I checked 3 ethernet cables
2) I am not connected via wifi
3) I am quite sure that my notebook's NIC is working with speed around 1Gbit.
I've tried:
http://www.whaleblubber.ca/realtek-nic-issues/
with newest driver downloaded from realtec
http://www.realtek.com.tw/down…ownTypeID=3&GetDown=false

Zitat

Any crap hardware inbetween your NAS and your Notebook that could limit your transfer speed? Is your notebook maybe using Wifi instead of the wired connection?GreetingsDavid

First atempts were with direct connection with single ethernet cable 6e. Right now I have gigabit router Luxul XWR-1750 andwith this device, results are a little bit wrost.

Zitat

Erm... when you tried iperf... did you only try single connection or did you also enable parallel connections? Without parallel connections you won't reach far more speed.
David

I've performed typical test with TCP window 128k and buffer 64k. On this parameters i've received the best results. What do you mean "single connection"?

Tommorow I am going to test with other computer, maybe there is an issue with my notebook, but as i said before - I performed silimat tests wit my notebook with Netgear ReadyNas RN3220.

Solo0815 - I will check this ubuntuforum.

But still it doesnt aresolve my issue
Today I am going to test my "nas" with other computer. The funnies thing is that, my friend bought the same motherboard and his "nas" is working with decent speed around 115MB/s.

No, I didn't have time, todays evening I will perform this test. I will write my results.

So, I didn't expected that my hdd on my notebook is dying. Transfer speed on my notebook's hdd is about 40MB/s of transfer between partitions. My friend was connected to my NAS and he gets around 90-110MB/s. We have been testing two NAS distro ane I've noticed that on "xpenology "(based on synology software) transfer over CIFS/SMB is a little bit higher then on OMV.
It is possible to manage data via webbrowser I didn't find this feature yet.
Thank you for help!
Merry christmas
/Wesołych Świąt

Well,
explorer seems be a good option but there is other way of managing my files on NAS?
E.g i woud like to attach usb stick to NAS and copy only part of data, I know that there is a "backup" but this plugin is copying all data to hdd. I am looking for simple and similar possibility to manage data as it is on e.g Qnap, Synology. Simple copying/moving data from /to usb from/to shared folder by normal user not admin.
I hope my idea is clear for you....