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Forum Discussion
Transfer speeds on Ultra 4
Hello, I am new to the forum and have just bought a Ultra 4. I was expecting this to be incredibly fast on my network but when accessing media from my HTPC it is very laggy. I thought I would check my network speeds are ok before I troubleshoot other areas.
Setup:
Ultra 4
4x2TB (2xSeagate ST2000DL003-9VT166, 2xSAMSUNG HD204UI with firmware update for NAS)
RAIDiator 4.2.19
Connected via CAT6 to BT HomeHub 3
MTU altered to 1492
Disabled full data journaling
From my main PC downstairs in the same room as the NAS and router I have tested drag and drop speeds. If I drag and drop a 3.8GB file to the ReadyNAS backup folder I achieve 4.35MB/s which correlates with the IOMeter test here: http://www.readynas.com/?p=310. This PC is using an Edimax 300MBps PCI card connected wirelessly to the HomeHub 3, windows reports a 130-144Mbps connection. I have uploaded two CSV outputs from IOMeter, one is when the MTU was 1500, the other was when I reduced it to 1492. As you can see there was a mild improvement when I reduced the MTU: http://www.megaupload.com/?d=9DS01OM8
My HTPC is upstairs, it is running Ubuntu and I intend to use XBMC as my media player. I have an Intel 4965AGN wireless card connected to my HomeHub 3 at rates varying from 70-140Mbps. The HTPC can handle 1080p MKV (tested with external USB HDD). The stuttering occurs when playing from a SMB or NFS share. I have not ran tests as with my main PC yet but will do.
Do my speeds look correct on my main PC? The IOMeter guide seems to suggest I should be getting around 25MB/s read/write on default settings and I even have full journalling turned off.
I welcome any comments or suggestions of further tests I can run :)
Setup:
Ultra 4
4x2TB (2xSeagate ST2000DL003-9VT166, 2xSAMSUNG HD204UI with firmware update for NAS)
RAIDiator 4.2.19
Connected via CAT6 to BT HomeHub 3
MTU altered to 1492
Disabled full data journaling
From my main PC downstairs in the same room as the NAS and router I have tested drag and drop speeds. If I drag and drop a 3.8GB file to the ReadyNAS backup folder I achieve 4.35MB/s which correlates with the IOMeter test here: http://www.readynas.com/?p=310. This PC is using an Edimax 300MBps PCI card connected wirelessly to the HomeHub 3, windows reports a 130-144Mbps connection. I have uploaded two CSV outputs from IOMeter, one is when the MTU was 1500, the other was when I reduced it to 1492. As you can see there was a mild improvement when I reduced the MTU: http://www.megaupload.com/?d=9DS01OM8
My HTPC is upstairs, it is running Ubuntu and I intend to use XBMC as my media player. I have an Intel 4965AGN wireless card connected to my HomeHub 3 at rates varying from 70-140Mbps. The HTPC can handle 1080p MKV (tested with external USB HDD). The stuttering occurs when playing from a SMB or NFS share. I have not ran tests as with my main PC yet but will do.
Do my speeds look correct on my main PC? The IOMeter guide seems to suggest I should be getting around 25MB/s read/write on default settings and I even have full journalling turned off.
I welcome any comments or suggestions of further tests I can run :)
12 Replies
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- Let us know how it works out.
- Okay to recap the old setup:
My office:
ReadyNAS Ultra 4
ZyXel GS-108B switch
Comtrend 200Mbps Powerline adapter
All using CAT 6
My room:
Comtrend 200Mbps Powerline adapter
BT Business hub (used as a hub only)
Acer Revo R3610
All using CAT5e
The above was tested using LAN Speed Test v1.7 on the Revo connecting to the media share on the ReadyNAS and achieved a measely 6-7 Mbps write speed.
Upgraded the Comtrend Powerlines to Solwise 500Mbps gigabit Homeplugs, swapped the BT Business hub for a ZyXel GS-105b and all CAT5e was replaced with CAT6, now I get 61Mbps which streams 1080p rips perfectly.
The odd thing is if I up my jumbo packets on my nVidia Gigabit ethernet port on the Revo to anything above 1514 the write rates drop to 20Mbps and the read test fails... I have jumbo frames enabled on the ReadyNAS and both switches are capable of 9k frames. Any idea why enabling anything above 1514 on my Revo cripples the speeds and fails read tests?
I will try to post screenshots of the full results later.
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