Ethernet transfer speeds??

Hi, when transfer files between my iMac(early 2013) and my Mac mini(late 2012, running windows 7 in bootcamp) via my wired network, I'm only able to get speeds around 20-25MB/sec, thou I'm using a gigabit wired network, with D Link gigabit switch and cat 5e cable....
Could someone please guide me, what am I doing wrong, because I should be able to have transfer speeds around 125MB/sec(theoretically)
kindly
Jan

Just came across this, maybe I should wait for the new OSX maverick.......
"Network File Systems
OS X includes a broad set of network file services—SMB, AFP, and NFS—for sharing files between Mac and PC.
SMB2
SMB2 is the new default protocol for sharing files in OS X Mavericks. SMB2 is superfast, increases security, and improves Windows compatibility.
• Efficient. SMB2 features Resource compounding, allowing multiple requests to be sent in a single request. In addition, SMB2 can use large reads and writes to make better use of faster networks as well as large MTU support for blazing speeds on 10 Gigabit Ethernet. It aggressively caches file and folder properties and uses opportu- nistic locking to enable better caching of data. It’s even more reliable, thanks to the ability to transparently reconnect to servers in the event of a temporary disconnect.
• Secure. SMB2 supports Extended Authentication Security using Kerberos and NTLMv2.
• Compatible. SMB2 is automatically used to share files between two Mac computers running OS X Mavericks, or when a Windows client running Vista, Windows 7, or Windows 8 connects to your Mac. OS X Mavericks maintains support for AFP and SMB network file-sharing protocols, automatically selecting the appropriate protocol as needed."

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What transfer speed can I expect via wired ethernet?

3 iMac's wired to an AirPort Extreme....what transfer speeds should I expect? I'm only getting 40-60MBps IMac to IMac via Ethernet provides up to 70MBps. I am wanting to get a Thunderbolt Drive but worry that while the iMac that the Thunderbolt HD is plugged into will get much faster transfer rates, when access the Thunderbolt HD from another iMac on the network I will still be stuck with the 40-60MBps rate. Surely there is a way to get faster network speeds than 40-60MBps?

Tesserax, You are are correct, I was just hoping that there was some way to get better performance out of my network speed so that the $1500 Thunderbolt purchase was worth it. What I now plan to do is get the $999 model R4 4-1TB just so I can have one since the iMac that the Thunderbolt HD will be plugged in to will be doing the most editing so in some ways it does help me....just not as much as I was hoping it would. I can at least take my old FireWire HD and plug it into my iMac and use that for FCPX projects that are for more personal than business use.
Having only 1 HD that 3 iMac's can use to edit images from has really helped me out with keeping everything in order.
If you can daisy chain the Thunderbolt Drives I have to wonder why they didn't have it so 2 iMac's couldn't connect to 1 HD. With 2 Thunderbolt ports on the iMac you would think you could connect iMacs together using 1 port on each then have the other port for like HD's, extra screens, etc You know what I mean? If you are going to make this super fast port/cable you might as well make it to connect iMacs as well.

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?
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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?
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thanks
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Ethernet intranet transfer speed issue

I followed these directions after suspecting my transfer speed was not what it used to be. I remember when transferring files via ethernet that the speed was quite astounding.
directions:
Network>Built-in Ethernet>Ethernet Tab>Configure drop down>Manually (Advanced), then manually set the Speed to 1000baseT on both, and the Duplex to full, then Apply... sometimes a reboot is needed.
After this resulted in no speed difference, I noticed my cables were regular cat 5, not cat 5e or 6.
So I bought some name brand cat 6 cables.
I am using a gigabit router Dlink dir 655 i believe, with cat 6 cables, but it takes about 1 minute to transfer 1 gig of data between my macbook and my G5 dual 2.3.
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Help?

What speed HDs on both ends? What size/how many files?
Seems your getting about 16MB/Sec which sounds like an HDD limit.
My iMac/2.4Ghz/SATA 7200RPM does this...
Transfer Size Sequential Read Sequential Write Random Read Random Write
4 KBytes 21.659 MB/Sec 26.130 MB/Sec 0.573 MB/Sec 9.953 MB/Sec
8 KBytes 41.826 MB/Sec 42.044 MB/Sec 1.265 MB/Sec 9.967 MB/Sec
16 KBytes 66.584 MB/Sec 67.989 MB/Sec 8.902 MB/Sec 13.782 MB/Sec
32 KBytes 85.443 MB/Sec 77.280 MB/Sec 4.541 MB/Sec 19.093 MB/Sec
64 KBytes 99.141 MB/Sec 101.458 MB/Sec 8.791 MB/Sec 23.077 MB/Sec
128 KBytes 101.405 MB/Sec 101.466 MB/Sec 16.456 MB/Sec 27.584 MB/Sec
256 KBytes 100.920 MB/Sec 101.373 MB/Sec 31.681 MB/Sec 36.889 MB/Sec
512 KBytes 101.425 MB/Sec 100.816 MB/Sec 33.854 MB/Sec 46.232 MB/Sec
1024 KBytes 96.340 MB/Sec 101.371 MB/Sec 45.283 MB/Sec 40.172 MB/Sec
Standard Ave 79.416 MB/Sec 79.992 MB/Sec 16.816 MB/Sec 25.194 MB/Sec
Not even close to the Max 125MB/Sec Gigabit Ethernet.

Very slow network directory listing - but fast data transfer speed once listed?

Hello,
I have really tried to sort this myself before opening up to the community, however I have run out of ideas, and hope someone can offer the magic solution I have missed.
I am currently using the 3.4ghz i7 iMac on a 1GB LAN, running OSX10.7.2 - connecting to a Windows Server 2008 (Running Release 2) over ethernet.
If i go to a network directory that i haven't recently accessed it can take up to 60 seconds to show the contents of that directory. Once i have accessed that folder, if i come out of it and go back in it will be instant again - but the first time it lists the directory it looks like i have opened an empty folder - which after anything from 10seconds to 1 minute will suddenly show the files that are there.
Internet connectivity is fast through the network, and file transfers across the LAN are fast. (showing as approx 300mb per second) I can play and edit HD content across the network with no slowdown so I am confident that this issue is not related to the network speed itself, and is more to do with a setting on this mac.
Symptoms are very similar to this post: https://discussions.apple.com/message/12245148?messageID=12245148&amp%3b#1224514 8 - however i understand that in OSX Lion - SMB was removed - so i cannot find this file to edit.
I have tried bypassing additional hubs in the network by wiring direct cables to the switch that is connected to the file server, this made no difference.
I have also tried disconnecting the ethernet cable, and running over wifi. This fixes the listing problem, but when editing HD content over a network drive, this connection is not fast enough to carry the data without interruption (some projects are linked to up to 900gb of hd video content!)
Using ethernet, I have tried DHCP, DHCP with manual address, and manual mode. All reproduce this problem. i have tried using the windows workgroup, and tried without it.
I have also followed this suggestion: https://discussions.apple.com/thread/2134936?threadID=2134936&tstart=45 and used OpenDNS. this did not fix the issue.
For argument sake, I have also just tested a Macbook Pro running Snow Leopard to see if it was OS related. This reproduces the exact same problem, near instant directory listing on the wifi, a long and arduous wait on ethernet.
I cannot work out why directory listing is instant over wifi, but not over ethernet on 2 different macs, running 2 different versions of OSX. I also do not understand why if the network is having trouble listing the directories - the data transfer speed is 300mbps when i copy files across the wired network from the file server to the mac.
Does anyone have any other ideas as to what could be the problem here? We are about to start work on a very large project, where the content we are editing is spread out across around 200 different network folders (different shoots captured over the past 2 years). We really don't have the time to wait 60 seconds each time we need to access one of those directories to look for a file, and I am very close to pulling all my hair out!
I really look forward to hearing from anyone who can offer any insight.

If you are suspecting that the Windows update had something to do with your LAN going slow, then try the following:
1. Look for updates for your clients LAN NIC driver; or
2. Un-install the updates.

WRT350N - Transfer speed via Storage link

I have always been curious what the transfer speed others get while using
a USB 2.0 hard drives on their WRT350N.
Obviously there is going to be a drop in transfer speed using storage link but 2-3 Megabyte seems slower then I would expect. I don't thnk I have ever seen much about 3MB.
I see the same performance wirelessly (connected at 270mb) and hardwired into the gig ethernet port.
Just wanted to get some other peoples results.
Message Edited by GAH1068 on 01-17-2008 02:04 PM

It was on both systems. However, I did get it working. Not the way I liked, but it works. What I expected to see was the device hung off the network. That is like another computer. This *is* happening, but where I was confused was the access to it. On other shared resources I can open it at will with no special access rights needed. I'm talking about printers and files on other computers on the network. It turned out to access the Storage Link I had to actually provide a USER ID and PASSWORD before I could use it. Why I couldn't get access before was I had HTTP:\\192.168.1.1 already open in my browser so any other attempts via the web browser used the existing connection. Not until I saw a forum message that said use START=>RUN and enter the IP address or UNC name was I able to connect to it. Since I now know this, a simple bat file with some NET USE's should fix the problem of getting access. Compounding my problem is how I've chosen to manage the network and shares. I use Network Magic, and it can NOT see the Storage Link at all. Anyway, I now know how to access the Storage Link. I was using a Flash drive for testing. I'll next put a USB External drive on and try that out. My ultimate try will be a USB hub and 4 external drives and hopefully I'll have access to all 4 drives to all computers. Irv S.
Thanks,
Irv S.

Internal Disk to Disk Data Transfer Speed Very Slow

I have a G5 Xserve running Tiger with all updates applied that has recently started experiencing very slow Drive to Drive Data transfer speeds.
When transferring data from one drive to another ( Internal to Internal, Internal to USB, Internal, Internal to FW, USB to USB or any other combination of the three ) we only are getting about 2GB / hr transfer speeds.
I initially thought the internal drive was going bad. I tested the drive and found some minor header issues etc... that were able to be repaired so I replace the internal boot drive
I tested and immediately got the same issue.
I also tried booting from a FW drive and I got the same issue.
If I connect to the server over the ethernet network, I get what I would expect to be typical data transfer rates of about 20GB+ / hr. Much higher than the internal rates and I am copying data from the same internal drives so I really don't think the drive is the issue.
I called AppleCare and discussed the issue with them. They said it sounded like a controller issue so I purchased a replacement MLB from them. After replacing the drive data transfer speeds jumped back to normal for about a day maybe two.
Now we are back to experiencing slow data transfer speeds internally ( 2GB / hr ) and normal transfer speeds ( 20GB+ / hr ) over the network.
Any ideas on what might be causing the problem would be appreciated

As suggested, do check for other I/O load on the spindles. And check for general system load.
I don't know of a good GUI in-built I/O monitor here (and particularly for Tiger Server), though there is iopending and DTrace and Apple-provided [performance scripts|http://support.apple.com/kb/HT1992] with Leopard and Leopard Server. top would show you busy processes.
Also look for memory errors and memory constraints and check for anything interesting in the contents of the system logs.
The next spot after the controllers (and it's usually my first "hardware" stop for these sorts of cases, and usually before swapping the motherboard) are the disks that are involved, and whatever widgets are in the PCI slots. Loose cables, bad cables, and spindle-swaps. Yes, disks can sometimes slow down like this, and that's not usually a Good Thing. I know you think this isn't the disks, but that's one of the remaining common hardware factors. And don't presume any SMART disk monitoring has predictive value; SMART can miss a number of these cases.
(Sometimes you have to use the classic "field service" technique of swapping parts and of shutting down software pieces until the problem goes away. Then work from there.)
And the other question is around how much time and effort should be spent on this Xserve G5 box; whether you're now in the market for a replacement G5 box or a newer Intel Xserve box as a more cost-effective solution.
(How current and how reliable is your disk archive?)

Wireless transfer speed is hopeless!

Hi,
New BT customer here, after being with aol for nearly 10 years I thought it was time for a change. Why-o-why?
I used to have a netgear 834g router which worked fine, signal would drop a touch upstairs and broadband 8mb with aol, but they could not offer me an all-in package, Wireless transfer speed of 54mbps with a netgear wv111v2 g adapter.
So I decided to change to BT(07/06/2010) to have it all under one roof, Total Broadband they call it, Total **** I call it.
Since the changeover my wireless transfer speed upstairs will be lucky to achieve 24mbps and the signal is shocking ranges from low to can't be bothered. So, I bought a new Belkin 'N' F5D8053v6 adapter to achieve best range and speed. No change in fact, it is worse than the old adapter, Dodgy adapter maybe? No, because I then bought the singing n' dancing Netgear N 300 mbps Wn111v2 adapter and it is still rubbish 24mbps max.
I am not a computer nerd, but I can set up a network after going through all this before, having two kids who are computer nuts sees to that.
I have changed/reinstalled everything, changed the channels; WEP, WPA-Sk; refitted old adapter, sat on top the BT hub; scoured forums, all to no avail the signal and transfer rate is still the same.
Off to India it was, to have the mis-fortune of speaking to one of the most rude, abrasive customer service personel. They would not listen to what I told them, accused me of entering the wrong password; ignored me on the phone whilst talking to someone else, done some checks remotely whilst I was still on line and said the speed was the best I could achieve, after an endless amount of time on the phone, It was the brick wall with open doorway between me and the hub 5 yards away causing the drop. All non believable.
Well I have just come off the phone and it's still the same, I have had to change the channels 5 times since to try and get a constant signal.
The BT hub say tranfer rate of 130mbps when I only have 24mbps according to my adapter, so who is lying?
My line is fine, I live less than 2 miles form exchange and if I connect through ethernet I get 6.5mb, wireless it drops to 2.5mb upload 0.4mb.
Please BT come and take this useless equipment away and I will go back to aol's basic kit. I won't hold it against you, but it is far superior in every way.

herbie9 your own post said that and I quote "I used to have a netgear 834g router which worked fine, signal would drop a touch upstairs and broadband 8mb with aol, but they could not offer me an all-in package, Wireless transfer speed of 54mbps with a netgear wv111v2 g adapter." Like Sweeney47 says use that and just configure it for BT access. Plenty of links in here to help with that. The only other answer for you will be to use a powerline adpater pair to another WAP upstairs and that will give you the signal downstairs and up. should be able to pick up a cheap WAP for under £20 and the powerline adpaters vary but I have seen them for £30 and up. Quality counts on the powerline though. Must be an enviromental issue regards wireless signal.

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.

Transfer speed to Airport Disk?

I have a 300GB LaCie connected to the USB2 port on my Airport Extreme Base Station. So far, this arrangement seems to be working fine in Leopard--but I'm wondering if the data-transfer rate is abnormally slow.
I have the Wireless Radio Mode set to 802.11n (802.11b/g compatible) (unfortunately, I can't go 802.11n only, or my TiVo can't connect), and the iMac I'm on is only a few feet away from the Base Station. I'm transfering a 3.5GB iMovieHD file from the iMac to the 300GB LaCie right now, and the total transfer time is about 42 minutes. Does this seem normal?

There's a bit of confusion in this thread about speeds.
Data transfer speeds are sometimes given in MegaBITS per second Mb/s and sometimes given in MegaBYTES per second MB/s. (it's easy to get them confused)
The Airport Extreme's wireless is rated at 270Mb/s.
That number does not reflect real world use (but all manufacturers use the theoretical value) What it means is that this is the maximum number of bits per second going in both directions including all the overhead stuff.
What is the maximum real world speed? In the real world the best speed you'll see copying a file from one place to another is 10MegaBYTES per second. This is very fast wireless very similar to wired ethernet. It can only be achieved when the Airport is set to 5GHz radio mode.
The USB hard drive does not achieve this speed. The CPU in the base station struggles to cope with files systems and the drive. So reading and writing you get between 3 and 6 MegaBYTES per second. The same drive would be 4 or 5 times quicker if it were plugged into your computer.
Using a NAS is faster. But this is plenty fast enough for streaming HD videos.
Jon,
Your speed is about half the regular speed for copying. Not massively slow but slower than I'd expect.
Try connecting at 5GHz n-only.
And use the graph device in Airport Utility to see if you have a poor signal strength.

File transfer speed in 10.5.2

Since installing 10.5.2 the transfer speed between two Macs sharing a wireless access point is abysmal. 1GB now takes 8 hours to transfer if copied through the Finder. It used to take about half an hour. Using rsync from the command line the same transfer still takes about half an hour, with no Speedup. This looks like a protocol issue rather than anything to do with the wireless setup.
Anyone getting the same problem?

Yeah. The same wireless network setups work fine with machines not yet brought up to 10.5.2. The problem has been seen both with 3rd party wireless routers and with Apple Airport Extreme. There's some indication the problem can even be triggered in wired ethernet transfers outbound from a 10.5.2 MAC if the file sizes are big enough and time duration of the transfer is long enough.
The two threads (cited above) pretty much cover what seems to be known about the problem from posters here. There's speculation that this is an instance of "silly windows" syndrome (see the threads). At least one bug report has been filed already (no word of any response yet). Here are the two threads again for convenience:
Slow upload into the internet from a wireless 10.5.2 MAC:
http://discussions.apple.com/thread.jspa?threadID=1389943
Slow file transfers within the LAN outbound from a wireless 10.5.2 MAC:
http://discussions.apple.com/thread.jspa?threadID=1394485
--Bob

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.

Network transfer speeds

Hi Guys,
I've got a wired ethernet network set up here at home.
I'm using an Airport extreme which is connected directly to my modem.
From there, I have the Airport connected to a brand new Gigabit switch.
All my devices: 2 imacs, 2 apple tv's, a d-link Gigabit NAS.
For some reason, I can't get transfer speeds over 41.3 MB/sec
I've tried this on all devices. Reset everything.
Is this speed typical of Gigabit? I thought it would be much much faster.
Not sure how to diagnose the issue. Screen shot of network activity below....
Any suggestions?
Cheers,
Nick

We had a similar issue and the issue was the LRO settings in esxi
http://billyc5022.blogspot.com/2011/09/vmware-esxi-41-optimizations-for-cisco.html
Sent from Cisco Technical Support iPad App

Slower Network Transfer Speeds with .7

Since upgrading to .7, I've noticed slow transfer speeds. For example, when transferring one large file, I get 11MB/sec on average. When transferring a bunch of smaller files, I get about 1 - 1.5MB/sec. I remember is being faster in .6
This is transferring files from my Mac Pro to my Time Capsule, using Gigabit Ethernet.
Can someone let me know what speeds you are getting when transffering a large file from a Mac Pro to a TC and also a bunch of small files from a Mac Pro to a Time Capsule. (or any NAS drive)
I used Activity Monitor to test the speeds. Thanks.

Does your PC have a FireWire port? you can use IP over FireWire for better throughput than the wired ethernet.
You can't use link aggregation in this case since it requires multiple interfaces of the same type (e.g. two gigabit ethernet cards), but you cannot mix media such as AirPort and Ethernet.
The alternative would be to install a gigabit ethernet card in your PC. You'd at least then get gigabit ethernet speed between the two devices which is also a step up.

Slow VPN PPTP Transfer Speeds vs. Windows XP

I recently switched my father to a new unibody MacBook after years of Windows XP heartache. He uses a VPN (PPTP) connection to access files on the Windows 2003 server at work.
*On the Mac (10.5.5), the file transfer speed over VPN is so slow that it is unusable.* Leopard can connect to the SMB server easily enough but clicking on a volume shows nothing until, after a 2-3 minute wait, the file list finally populates. The old Windows XP machine loads the volumes far quicker and is noticeably faster.
We are using the same credentials and settings as on the old machine, but nothing we do will speed up the connection so that it is actually usable.
Any thoughts or suggestions? At this stage I am extremely disappointed in the Mac's ability to integrate with enterprise. I was so sure the transition would be seamless but Leopard is making basic tasks much more difficult. It's egg on my face!
Help would be much appreciated!
Thanks, jd.
P.S. My apologies if this has already been discussed. Searching didn't give me many relevant results...

Hi Joe,
College networks can have a lot of unusual security monitoring systems in place, so it's conceivable that they limit non-PC speed, but as you said, you've checked that.
There is a known issue with some Gigabit Ethernet capable Macintosh systems and some switches. This problem can be fixed by software configuration, so it's possible Windows automatically does it, but MacOS doesn't. Have a look at the instructions specified in this Apple article and see if it helps: http://docs.info.apple.com/article.html?artnum=303660

Ethernet transfer speeds??

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