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Author Topic: Slow Transfer Speed  (Read 17800 times)

ddasilva99

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Slow Transfer Speed
« on: June 21, 2010, 08:09:01 PM »
Hello,

I purchased the DNS-321 this evening and I plugged in two WD 2TB green drives running in RAID 1/EXT3 configuration.  My NAS is connected direct to my Marvel 1Gbps NIC via cross cable.  I have configured my NIC and NAS to run jumbo frames, 9K.

When I transfer a file it usually transfer between 9.3-10.2 MB/sec (as stated by Windows 7 File Transfer dialog).

I feel this is unusually slow since they are new drives and I have configured jumbo frames.  Could someone please advise if I have done something wrong?

Thanks,
D
« Last Edit: June 21, 2010, 08:18:16 PM by ddasilva99 »
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gunrunnerjohn

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Re: Slow Transfer Speed
« Reply #1 on: June 22, 2010, 05:57:30 AM »
Probably not, but you should be able to get it up to maybe 13-14.  There might be some other issue in the network throttling the throughput to 100mbit, which looks like what you're getting.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

craftsman

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Re: Slow Transfer Speed
« Reply #2 on: June 30, 2010, 11:52:14 AM »
Its probably the drives. If the model number ends in EARS they are the WD Advanced Format drives which D-Link doesn't support.
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gunrunnerjohn

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Re: Slow Transfer Speed
« Reply #3 on: June 30, 2010, 05:28:11 PM »
The drives wouldn't explain that slow a transfer.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

Blood1

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Re: Slow Transfer Speed
« Reply #4 on: September 28, 2010, 08:04:47 PM »
I'd like to jump in here as well. I have the DNS-321 hooked up to my D-Link DIR-655 All supposedly Gigabit ports. When logged into the 321 the speeds it says it detects is 1000 so gigabit. Yet when my PC is copying files to it, i'm only getting 5~6Mbps copying huge files over. WTF?
I enabled the 9K jumbo frame thing and it's still in this range 5/6/7Mbps.
This is total garbage.
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MV10

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Re: Slow Transfer Speed
« Reply #5 on: September 29, 2010, 05:19:23 AM »
I get the same results no matter how I configure my router, NIC, switches, and other equipment.
For some reason many of the NAS devices available have atrocious networks speeds.

It would appear that among the DNS-321's many other faults, this is also one of them.
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Blood1

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Re: Slow Transfer Speed
« Reply #6 on: October 06, 2010, 08:24:02 AM »
I'm totally f-in confused now.
When I FTP upload to the NAS I now get like @ 15~20Mbps UPLOAD.
But when I try to download I'm only getting 3~6 Mbps? DOWNLOAD? Why the hell is this slower?

I tried turning off JUMBO Frames on both my NIC card on my PC and disabling it on the NAS device. Same thing. Enabled it again on both and same thing.

I don't get it? Does anyone who has the 323 have these issues?
My PC NIC Card: Realtek PCIe GBE Family Controller
D-Link DNS-321
D-Link DIR-655 Gigabit Router
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Blood1

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Re: Slow Transfer Speed
« Reply #7 on: November 03, 2010, 12:39:57 PM »
Anyone? It's SLOW still copying from the device. < 4Mbps. Writing to it is faster???
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jamieburchell

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Re: Slow Transfer Speed
« Reply #8 on: November 03, 2010, 02:22:46 PM »
Are you using FTP to transfer the files internally? Have you tried SMB? I wonder if it's worth connecting directly to the NAS with a network cable and see if you still get slow speeds. You might find your network is the issue?
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If your little 323 is not working right,
You've racked your brains and been up all night
Take a deep breath and wipe away the sweat,
Login as web admin and try a factory reset!

strayenergy

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Re: Slow Transfer Speed
« Reply #9 on: November 05, 2010, 11:22:22 AM »
SLOW SLOW SLOW this is gigabit? Regular Ethernet even seemed faster! Even my DIR655 has an extremely slow config page. I'm really starting wonder about D-link.
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jamieson

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Re: Slow Transfer Speed
« Reply #10 on: November 08, 2010, 12:55:56 PM »
If you're on a totally gigabit ethernet network set the DNS to 1000bps not "auto".  Something about using the auto speed selection slowed it down.  Still, I'm not getting above 12MB/sec transfers in either direction. 
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gunrunnerjohn

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Re: Slow Transfer Speed
« Reply #11 on: November 08, 2010, 01:36:45 PM »
You need to spend more on a NAS to get the performance you expect.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

jamieburchell

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Re: Slow Transfer Speed
« Reply #12 on: November 09, 2010, 01:35:40 AM »
Quote from: MadMan on November 08, 2010, 08:51:12 PM
I will return the 321 and buy a USB 3.0 box.

NAS and locally attached USB are very different things.
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If your little 323 is not working right,
You've racked your brains and been up all night
Take a deep breath and wipe away the sweat,
Login as web admin and try a factory reset!

gunrunnerjohn

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Re: Slow Transfer Speed
« Reply #13 on: November 09, 2010, 05:46:19 AM »
I have a DNS-321, DNS-323, and a Synology DS209.  There is a significant difference, here's my benchmarks.



Synology DS209 Gigabit, no jumbo frames, RAID-1 EXT3 1.5TB Seagate 5400 RPM Drives

Running a 2000MB file write on drive I: once...
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Average (W):     31.87 MB/sec
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Running a 2000MB file read on drive I: once...
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Average (R):     62.97 MB/sec
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DNS-323 Gigabit, no jumbo frames, single EXT3 1.5TB Hitachi 5400 RPM Drive

Running a 2000MB file write on drive j: once...
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Average (W):     13.03 MB/sec
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Running a 2000MB file read on drive j: once...
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Average (R):     17.3 MB/sec
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DNS-321 Gigabit, no jumbo frames, single EXT3 1.5TB Hitachi 5400 RPM Drive
Running a 2000MB file write on drive K: once...
------------------------------
Average (W):     9.34 MB/sec
------------------------------
Running a 2000MB file read on drive K: once...
------------------------------
Average (R):     11.81 MB/sec
------------------------------
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

la9ers

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  • Posts: 1
Re: Slow Transfer Speed
« Reply #14 on: December 02, 2010, 08:05:27 PM »
i Just got the 321 today along with a seagate 2tb 5900 and I'm transfering some movies from local hard drive to the 321 at 15.2mb per second.....
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