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#1 2007-12-29 05:39:56

bohica
Member
Registered: 2007-12-17
Posts: 16

What kind of transfer rates are you experiencing from DNS 323

Just wondering what kind of transfer rates your experieincing when copying files from your hard drive on the computer to the DNS-323?  I last week enjoyed almost 1.1 mb per second now I am down to 232 kbs???? Don't understand why?   Anyone ?

For information:  Running 1000 G LAN card and a DLink 625 1000 G Router, hard drive a SATA 7200 RPM Seagate 500G 16 mb buffer.  Processor a AMD 3200 and 2.0 gig of ram on a Video card with 256 gig memory as well.

Last edited by bohica (2007-12-29 05:42:14)

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#2 2007-12-29 10:00:18

brainsurgery
New member
Registered: 2007-12-29
Posts: 3

Re: What kind of transfer rates are you experiencing from DNS 323

I have almost same problem. My HW is Thomson cable modem +  wlan router (in the same box), DNS and Asus laptop with 54Mbit wlan card. If I connect the DNS with cable to my laptop, transfer rate is around 8MB/s. If I connect it to Thomson, transfer rate drops down to 2MB/s.

I have tried with another laptop and another router (D-Link DL-524) but the result is the same. Is there some settings in the whlan routers that decreases the transfer speed? I think with 54Mbit wlan, you should be able to transfer at least ~4MB/s?

Test file was around 100MB file.

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#3 2007-12-29 15:20:39

fordem
Member
Registered: 2007-01-26
Posts: 1938

Re: What kind of transfer rates are you experiencing from DNS 323

First - there's already a thread on this topic - you might want to search for it.
Second - there will be a lot less confusion if every one uses the same units - mb for megabit, MB for Megabyte, etc.

A 100 MByte file is really not large enough for a speed test - I can move that to my DNS-323 in probably 6 seconds or so - I say probably because I'm extrapolating, a 2 GByte file takes a little over 2 minutes.  You will see lower throughput with a large number of smaller files so whilst a single 2 GByte file will take, like I said around 2 minutes, the same 2 GByte of data, this time as a folder of 20 x 100 MByte files will take longer.

To look at bohica's figures 1.1 megabit/sec is unbelievabley slow, in fact, I would consider 1.1 MegaByte/sec also slow - brainsurgery's 8 MegaByte/sec is closer to the perfomance I usually get on 100 mbps ethernet (brainsurgery does not tell us what speed his wired network is) and I can do roughly double that on GbE.

For possible reasons you need to look at everything involved in the transfer - the source disk (rpm, interface bandwidth and fragmentation levels, the actual network and the destination disk.

@brainsurgery - wireless networks never deliver the advertised throughput - a 54 mbps WLAN will at best deliver around 30 mbps, and quite possibly less, depending on the evironment in which it is operating and other factors such as encryption levels and processing power of the equipment.

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#4 2007-12-30 18:14:02

n0m0r3
Member
Registered: 2007-09-20
Posts: 20

Re: What kind of transfer rates are you experiencing from DNS 323

I own a Conceptronic CH3SNAS which is almost the same as the DNS-323. I have transfer rates up- and downspeeds around 15mb/s. not bad....

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#5 2007-12-30 18:54:08

fordem
Member
Registered: 2007-01-26
Posts: 1938

Re: What kind of transfer rates are you experiencing from DNS 323

n0m0r3 wrote:

I own a Conceptronic CH3SNAS which is almost the same as the DNS-323. I have transfer rates up- and downspeeds around 15mb/s. not bad....

You know - it's such a shame when folks can't be bothered to pay attention to what can be considered normal standards - just one post above this one I highlight the need to use a common unit to avoid confusion and then we get this one.

This is exactly the sort of confusion I was trying to prevent

15mb/s ??  Compared to what I'm getting, that is bad - I see over 60mb/s on a 100 mbps LAN and more than double that, as a matter of fact close to triple that - I think around 170mb/s on a Gigabit LAN - by the way, these speeds are not obtained by transferring a large file and timing it, and the dividing the file size by the time taken - these come from a bandwidth measuring tool that get's it's raw data from the SNMP counters on my network switch - so to speak actually counting the bits as they go by.

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