What file transfer speeds are possible over Gigabit Ethernet - Hatter?

Thanks in advance for taking the time to consider this.
Our still photgraphic studio has a range of MACs all connected via a gigabit D-Link switch to a series of Buffalo NAS raids. Wiring is CAT5e, all devices have gigabit ethernet cards and the link lights on the switch suggest that all devices are connected at that speed.
We currently get file transfer rates of between 5 and 12 MB/s depending on network traffic.
We would like to upgrade our NAS to a NAS/SAN, preferably using the existing wiring (and avoid the expense of Fibrenet). 50 or 60MB/s would be great if possible.
Any ideas for a suitable archtecture and Hardware would be gratefully received. Cable lengths are a maximum of 30 metres.
Paul

I'm getting sustained speeds of 90-100 megabytes/second on a transfer across GigE from one mac to another, both working on high-capacity SATA drives.
It drops to ~65 megabytes per second if the source drive is my 2TB Firewire 800 external.
both rates are right on the real-world maximum for GigE and FW800 respectively, which is a great sign that nothing else is bottlenecking the transfer.
My experience with NAS boxes has been disappointing in the past, with transfer rates of 5-35 MB/sec - painfully slow for large files, which destroys the purpose of NAS for me, which is reasonably high-speed off-computer storage.
I'm MUCH happier, and didn't have to pay very much to set up a Mac with 4 SATA drives onboard, acting as a file server... I'm actually getting files FASTER than I am from a FW800 drive directly attached now.

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Mavericks (10.9.5) File Sharing Speeds are awful over Gigabit

I was recently hired at a small design business and we have 3 iMacs (late 2011) and a Mac Mini (Late 2012) that frequently need to share files. We are all attached via Gigabit LAN which is verified when I open Network Utility on any of the computers and read the link speed under the info tab. The Mac Mini acts as a file server. Everyone mounts to it using the AFP protocol and uses the admin account's credentials. The Mac Mini is not running OSX server because we felt it was unnecessary as we do not need to manage user accounts.
Everything is terribly slow. Finder frequently beach balls and takes forever just to list directories. File transfer speeds are slow even for a 100mbps connection and connections frequently drop. Would running OS X Server on the Mac Mini help anything? Do we need to tweak our network settings? We are prepping to update to Yosemite with clean installs with the hopes of starting with a clean slate. Will this help or exacerbate the problem?
Thanks for any help!

Have you tried connecting to the server using AFP?
To protect your existing content, I would suggest the following:
1: Identify where your existing shared folder is - Let's assume it is /Users/Shared/CurrentShare
2: Create another folder in the same relative location - For example, /Users/Shared/Test
3: Share this folder ensuring that AFP is enabled
4: From a workstation, disconnect from the server
5: From the same workstation, connect to the server using:
    a: From the Finder, go to the Go menu
     b: Choose Connect to Server...
     c: In the address field enter afp://host.domain.tld of your server or afp://10.0.0.10
-- Obviously replace host.domain.tld with the actual fully qualified host name and/or the IP with the actual IP address of the server.
6: Once connected via AFP, perform a series of copy tests and time the performance.
All things being equal, assuming you changed nothing else, this test should determine if the issue is the protocol or not. If AFP is faster than SMB, then you know SMB is crippling you. If the speed is the same, then you need to look elsewhere.
A Mac mini Server (or not) should be able to achieve about 4 GB/min when performing large file reads or rights over AFP. This is a good rule of thumb. If you create a 500 MB DMG file, it should copy in under 7.5 seconds.
If the performance of AFP is equally as bad, then you might need to investigate your disks. How full is the drive? Is there directory damage? How are the files named?
This should get you started.
Reid
Apple Consultants Network
Author "Yosemite Server – Foundation Services" :: Exclusively available in Apple's iBooks Store
Author "Mavericks Server – Foundation Services" :: Exclusively available in Apple's iBooks Store
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IPhone File Transfer Speeds

I have two MacBooks and two iPhones and I'm seeing very different file transfer speeds between the two. Both have the backup option manually disabled to improve sync times.
Setup 1: iPhone 3GS with MacBook Pro (15-inch, Late 2008) model
Setup 2: iPhone 3G with Black Macbook (13-inch Mid 2007) model
The time it takes to sync video between the two is drastic with the newer model copying files in a few seconds, and the older setup copying files over 5-10 minute periods.
I have yet to swap the two iPhones on the two computers but from a technical perspective, I don't understand why one would transfer files faster than the other. Both are using USB 2.0 and I've already tried using the same cable for both. Anyone see similar behavior? Is this a facet of the older computer or older iPhone?

As an example, a USB host on a PCI bus will send or receive the data via the PCI bus; the stack will prepare the next data in memory and receive interrupt from the host. That's what I mean, how that's implemented.

K8T Mstr2-FAR7 ---- File Transfer Speed

I measured file transfer speed between partitions, 1) both in the same physical drive and 2) each in a different physical drive. The measurements were made on WXP and WVT by using a file having 1048MB in size. Results are as follows:
1) Partitions in the same physical Drive
WXPx86 : 18.55 seconds
WVTx86 : 38.91 seconds
2) Each partition in different physical drive
WXPx86 : 9.31 seconds
WVTx86 : 19.13 seconds
Are the above results normal? Vista's speed appear way lower than the maximum allowed by SATA-150. The speed may be affected by many factors. My hardware spec is shown below. RAM is in single channel mode and is running as DDR333.
Could anyone shed light on the matter of file transfer speed?

It's because Vista is buggy, everybody knows this.
If you want speed, use XP.
And that isn't the only problem with Vista, also graphics is 3x faster under XP.

Local file transfer speed slow on E1200

On a local file transfer (computer to NAS or NAS to computer) my file transfer speed with the E1200 is way too slow. I would expect the Wireless N speed to be at least 54mbps (megabits per second), which would be equivalent to 9 MegaBytes per second.
In practice the speed of transfer appears to be at 8mbps (1 MegaByte per second). Here is a screen shot:
The speed is the same whether I copy from the computer (on a wireless N link) to the NAS, or from the NAS (on a 100Mbit ethernet port on the E1200) to the computer. The NAS is brand new, auto configured to a RAID-1 setup with two new drives.
Anyone know why this is? is the encryption (WPA2-PSK/AES) slowing down the transfer? The same problem occurred with copying a folder of photos as with copying this large file. I don't think I can upgrade the firmware on my device, as I have the first version of the E1200.
Solved!
Go to Solution.

Sabretooth --
There is no option to set the Qos to zero. I can set it to "auto" in which case the number has no effect.
I could set it to manual but it restricts me to a range as you can see from the graphic.
In case you are wondering, my internet speed is 10Mbps downstream, 5Mbps upstream. So I am getting the same speed for the internet that I am getting for a local transfer.
The next troubleshooting step is to bypass the wireless and hook my PC to the router. I will let you know if that makes a difference.

File transfer speed when on battery power

Hey there - I've noticed that my file transfer speed is ridiculously slow when i'm not plugged in to a power source. Even when my battery is fully charged it's super slow. This happens not only when I'm uploading files from a memory card to my computer but when I'm attaching files to an email, or even sending an email. I've asked other mac users and they say this is not the norm for their machines....any ideas?
thanks!
Sunny

additionally, you can disable power menagement for your wireless card completely through iwconfig's power option. I suggest you read the manpage for iwconfig, I have quotes the 2 related options for you.
txpower
For cards supporting multiple transmit powers, sets the transmit power in dBm. If W is the power in Watt, the power in dBm is P = 30 + 10.log(W). If the value is postfixed by mW, it will be automatically converted to dBm.
In addition, on and off enable and disable the radio, and auto and fixed enable and disable power control (if those features are available).
Examples :
iwconfig eth0 txpower 15
iwconfig eth0 txpower 30mW
iwconfig eth0 txpower auto
iwconfig eth0 txpower off
power
Used to manipulate power management scheme parameters and mode.
To set the period between wake ups, enter period 'value'. To set the timeout before going back to sleep, enter timeout 'value'. You can also add the min and max modifiers. By default, those values are in seconds, append the suffix m or u to specify values in milliseconds or microseconds. Sometimes, those values are without units (number of beacon periods, dwell or similar).
off and on disable and reenable power management. Finally, you may set the power management mode to all (receive all packets), unicast (receive unicast packets only, discard multicast and broadcast) and multicast (receive multicast and broadcast only, discard unicast packets).
Examples :
iwconfig eth0 power period 2
iwconfig eth0 power 500m unicast
iwconfig eth0 power timeout 300u all
iwconfig eth0 power off
iwconfig eth0 power min period 2 power max period 4
website with the current manpage:
http://linux.die.net/man/8/iwconfig
or simply:
$ man iwconfig
Last edited by stefanwilkens (2010-09-13 11:11:37)

File transfer speed in Shared USB Hard Drive via Airport Extreme

I' am planing to buy one of this, but first I need to know what kind of file transfer speed I can expect when sharing USB drive via Airport Extreme 1000Mbps Ethernet.
Thanks.
Message was edited by: Robert81

most likely 14m/sec but normally 10.5 this is ethernet wired and usb attached. wireless would be about 8M/sec
Wired is good enough I use it for Finder copy frequently.

How do I see file transfer speeds?

Hey guys, does anyone know if it's possible for me to see file transfer speeds instead of just the time remaining in Finder?

Hi,
In song view, go to menu > view > view options and select bit rate, file type and size.
In preferences, you can change import settings to Apple lossless. When you use file > create new version you can now can now convert from aiff to lossless.
Create playlist based of file type being lossless.
Jim

Slow file transfer speed on OS X / Windows LAN

I have a Mac Mini with OS X Server (Yosemite) on a network of 5 Windows 7 PCs, the server hosts FileMaker Server 13 and also some files in a shared folder.
I notice the file transfer speed when copying a file from one PC up to the server's shared folder is around 350KB/second, is this an acceptable speed? how could I improve it?
Thanks for your help.

I'm having the same issues.. I recorded a bunch of video with the 4s.. now i'm copying them to my windows 7 pc with it peaking out at 900KB/sec. My corsair thumb drive in the same port gets 5-10x this speed. any luck getting faster speeds?

NSS2000 - Data transfer speeds over gigabit ethernet

I've just installed a NSS2000 on a gigabit network. I'm aware that some of the promised features (like support for jumbo frames) are not currently supported by the current firmware (version 1.13).
However, even without jumbo frames, I'm puzzled of why I am seeing data transfer speeds of only 50megabits per second, or about 5% utilization of the 1000Mb/s connection. I was expecting at least 20% utilization.
Is this another limitation of the current firmware version, or is there a setting somewhere on the NSS2000 which I need to to tweak to increase data transfer speeds?
More background - it is the only significant traffic on the network during test, the ethernet controller driver on my PC is the latest available, and the NSS reports that it is connected at 1000MB/sec. The unit has two 1.5Tb SATA drives in it, which are configuered as RAID1.
Also - does anyone know when the next firmware version is going to be available, and which of the current known issues it is likely to address?
thanks
Graham

I should mention that the volume I am writing to is encrypted - is the answer simply that this is the fastest that the onboard CPU can decrypt the content?
An experiment to an unencrypted volume increased the LAN utilization to around 10% - so an improvement, but still not as high as I had hoped.
thanks
Graham

AirPort Extreme (802.11n) File Transfer Speeds Over Ethernet

I tested the transfer time for a 1.33GB file from one computer to another under four conditions. Both computers support gigabit Ethernet, and all cabling is Category 6.
Condition 1: Both computers were directly connected to a pre-gigabit AirPort Extreme Base Station (802.11.n)
The transfer time was 128 seconds.
Condition 2: Both computers were directly connected to an 8-port D-Link DGS-2208 gigabit switch, which in turn was connected to a pre-gigabit AirPort Extreme Base Station (802.11.n)
The transfer time was 72 seconds.
Condition 3: Both computers were directly connected to an 8-port D-Link DGS-2208 gigabit switch, which in turn was connected to a gigabit AirPort Extreme Base Station (802.11.n)
The transfer time was 55 seconds.
Condition 4: Both computers were directly connected to a gigabit AirPort Extreme Base Station (802.11.n)
The transfer time was 28 seconds.
Tentative Conclusions: Using a gigabit switch as the parallel connecting device when the router is pre- or non-gigabit is helpful. Using a gigabit switch as the connecting device when the router is also gigabit is hurtful with respect to transfer time.
I would appreciate any comments.

I re-ran the tests several times, taking care to "pre-warm" the connections by rebooting the router (and the switch when applicable) and making one false start, stopping the first transfer and then starting the timed transfer.
The transfer times when no switch was involved were virtually the same as I reported earlier, with the gigabit router significantly outperforming the pre-gigabit AEBS (it was 5.73 times slower). Interestingly, the transfers via the gigabit switch were virtually as fast as a pure transfer using only the gigabit router.
And there was no difference in the gigabit switch-employed transfer times regardless of whether a pre-gigabit or gigabit router was used. Here is my revised conclusion:
Using a gigabit switch with Apple's pre-gigabit 802.11n router overcomes the slowness associated with a pre-gigabit router provided that pre-warming techniques are employed.

4500EA LAN File Transfer Speed

My XBOX started complaining when I began using Windows Media Center to stream videos from my PC to my XBOX. I found out that I had a wireless G router provided by verizon which wasn't fast enough to stream videos. SO, I went out and purchased a 4500EA router expecting it to be the fastest thing I had ever seen.
Now it seems a bit slow when trying to stream video from my laptop to the XBOX and i'm a tad bit confused as to why. So I did a file transfer from a desktop wired directly to the router from a laptop in the same room wirelessly connected to the network and my speed is about 4mbps. 4MBPS!? This device is supposed to be capable of moving packets LAN side at 450MBPS.
Both of my PC's are quad core, newer model PCs. I've tried moving files now for several hours with the same results. I've toyed around with my wireless adapters, changed power settings, full duplex, half, changed mtu sizes, changed security settings. I'm out of ideas.
Is getting about 1% of the advertised bandwidth normal? Or is something wrong?

1. Without knowing the wireless adapters you use it's impossible to say how much you might get under very good circumstances.
2. The advertised 450 Mbit/s is as usual with networking the theoretical boundary which would be possible only under absolutely ideal circumstances not using 802.11. In reality a compatible adapter might get maybe 1/2 of that under very good circumstances.
3. In reality you often won't get a 450 Mbit/s or 300 Mbit/s connection rate (which is only an indicator for the signalling and encoding used) but only a 144 Mbit/s connection at least for the 2.4 GHz band because there is too much interference.
4. Toying around with settings usually makes things only worse, in particular if you don't carefully revert all settings back to the original settings.
5. What connection rate did you get with your desktop? What adapter is in the desktop?

Maximum Bonjour file transfer speed?

I have a question for anyone who transfers files over Bonjour with iChat. What's the fastest speed you've been able to achieve?
I got 20MBps today, consistently for a 5GB file. Here's my setup:
I have a great Asus 100Mbps router running Tomato. It's connected to a Linksys Gigabit router, which is running DD-WRT in AP mode. I have 2 macbooks connected to the Linksys using GigE. Since my file transfer was faster than 12Mbps, I know iChat isn't routing all that data through the Asus, which is impressive; I'm surprised it can do that so efficiently. But then I wonder, why can't it be even faster?

Hi,
You need to look into the Actual real world throughput
http://searchnetworking.techtarget.com/answer/Ethernet-throughput
9:00 PM Wednesday; February 2, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

File Transfer Speeds

I know this topic has already been covered in some of the posts but it was replied that the latest version i.e., 6.20 would solve the bug. Which obviously it failed to do hence this post.
The latest version of skype 6.20 still gives a maximum speed of upto 4Mbps even if the clients are on Gigabit LAN connection. Version 6.18 used to stuck at 1.5 Mbps. Earlier versions (6.9) used to provide full LAN speed via skype.
Secondly, earlier versions of Skype didn't pass on the sounds of programs running on one of the clients but as I tested today, version 6.20 passes client sounds (and I'm not talking about speech) like music etc etc.
Is this really how upgrades are supposed to behave? Or is it poor quality assurance testing before making release public?
Disappointments since MS acquired this brilliant service.

Been having issues with file transfers for a while, didn't find out til I went to post here that Skype is now up to 6.21 (I was on 6.20.x but 'checking for updates' didn't find anything) so I uninstalled, installed fresh, and tried again. Still no good.
Not sure what the aforementioned previous discussions covered, but when sending a file my local connection gets saturated on the upload side. So my connection properties dialog shows my connection uploading faster than my internet can (somewhere around 800KBps, while my net upload is ~100), with everything else net related predictably slowing down. And the file transfer itself slows to a crawl.
Uninstalled the latest/current version of Skype, back to 6.16.0.105 as I read in some other advice, and am currently sending a file at my normal speed without any issue at all.
So if this was supposed to be fixed it most certainly isn't.
Note this isn't an anti-MS rant - I didn't install Skype until MSN/Windows messenger no longer worked. For my needs (IM, file transfer) messenger worked perfectly. Skype has been ok until recently with this issue.

File transfer speed and distance from base station?

I tested the file transfer time (outside with no obstructions) by moving a large video file between my MacBook and a computer wired to an Airport base station. The times were the same as distance increased until the connection dropped. Why?

Do the calculations.
(Although wireless qualifies more for voodoo project than science).
500MB translates to 5.7MB/s which is near enough to 46Mbits/s
500MB in 94sec is 42.6Mbits/s
That is really slow for 5ghz at such close distance to the airport.
What OS are you running? Please open the wireless diagnostics.
About Wireless Diagnostics - Apple Support
Run the wireless utility.
And get the actual link speed and how well it is working.
Then use iperf to get actual network speeds. Rather than moving a file test the link rates.
iperf is included in Mac OS and is available via terminal.
This post gives some clues. http://acidx.net/wordpress/2013/05/testing-a-network-connection-with-iperf/
I think your seeing a hold up due to slow ethernet say.. 100mbit ethernet will ruin any numbers you are trying to get in tests. As well as older slow Mechanical hdd in laptops.
But the link speed in the Utility will tell you the story.. if you link at 450Mbps which should be possible up close.. and it drops to say 200Mbps at a range of 130M you are still far faster than the rate determining step.. very likely to be a slow disk plus slow ethernet.
Go to the performance tab.. and keep it running as you move the computer from next to the Airport to the 130M point. You should see a pretty large drop in connect speed.. but you also need to keep this running as you transfer files.. since it tends to vary greatly during a file transfer.
For science experiments.. this is already a pretty good one.. you are trying to determine the rate determining step in a network system and why wireless is not causing the problem you expected. The use of actual diagnostic tools is great.. almost like science.
The big spike in this graph is me changing from 2.4ghz to 5ghz.

What file transfer speeds are possible over Gigabit Ethernet - Hatter?

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