s.alismousavi

Q: Speed of TC

Hi

I want to know how much is last generation TC's internal hard drive read and write speed over gigabit and over ac wifi?

If I connect a NAS (like WD my cloud) to it, how much is read and write speed too?

MacBook Pro with Retina display, OS X El Capitan (10.11.5), null

Posted on Jun 9, 2016 6:46 AM

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Q: Speed of TC

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  • by Tesserax,

    Tesserax Tesserax Jun 9, 2016 9:02 AM in response to s.alismousavi
    Level 9 (53,940 points)
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    Jun 9, 2016 9:02 AM in response to s.alismousavi

    By "speed" I am assuming you mean the maximum data transfer rates for these types of connections. If that is correct. then it will be highly dependent on your current network configuration so that any performance numbers provided will not necessarily be what you would get on your network.

     

    I wrote an AirPort User tip related to this topic. It is located here. It should give you an idea of "typical" data rates that you can expect.

  • by s.alismousavi,

    s.alismousavi s.alismousavi Jun 9, 2016 10:01 AM in response to Tesserax
    Level 1 (4 points)
    Wireless
    Jun 9, 2016 10:01 AM in response to Tesserax

    Actually I want use TC as an external hard drive on my home network (connect to TC via wifi or ethernet) and connect to it via my MBP and iPhone and iPad.

    When I copy a file from my MBP to TC and also from TC to MBP, I wanna know how much is maximum speed of transferring ?

    Also how much is maximum speed of transferring from a gigabit NAS that I connect to TC with ethernet ?

  • by Csound1,

    Csound1 Csound1 Jun 9, 2016 10:03 AM in response to s.alismousavi
    Level 9 (50,202 points)
    Desktops
    Jun 9, 2016 10:03 AM in response to s.alismousavi

    What is the speed of your network.

  • by s.alismousavi,

    s.alismousavi s.alismousavi Jun 9, 2016 10:20 AM in response to Csound1
    Level 1 (4 points)
    Wireless
    Jun 9, 2016 10:20 AM in response to Csound1

    My home network:

    a dsl Internet connection goes into a asus router and from that a lan connection goes into a Time Capsule and I connect to home network via ac wifi that TC has or via ethernet port on the TC.

    I think TC wifi speed (what written in apple website) is 1.3Gbps

  • by Csound1,

    Csound1 Csound1 Jun 9, 2016 10:23 AM in response to s.alismousavi
    Level 9 (50,202 points)
    Desktops
    Jun 9, 2016 10:23 AM in response to s.alismousavi

    I am asking about your internal network, not the internet

  • by s.alismousavi,

    s.alismousavi s.alismousavi Jun 9, 2016 12:27 PM in response to Csound1
    Level 1 (4 points)
    Wireless
    Jun 9, 2016 12:27 PM in response to Csound1

    How do I test that?

  • by Csound1,

    Csound1 Csound1 Jun 9, 2016 12:42 PM in response to s.alismousavi
    Level 9 (50,202 points)
    Desktops
    Jun 9, 2016 12:42 PM in response to s.alismousavi

    Is the TC connection a wireless one, if so which wireless (G, N, or AC)

    If it is wired, are all your devices gigabit or 100mbs,

    Which cables are in use, CAT5 or greater?

  • by s.alismousavi,

    s.alismousavi s.alismousavi Jun 9, 2016 1:03 PM in response to Csound1
    Level 1 (4 points)
    Wireless
    Jun 9, 2016 1:03 PM in response to Csound1

    It is AC wireless and gigabit ethernet with cat 6 cable (some of my devises connect via AC wireless and some of them via gigabit ethernet)

  • by Tesserax,Helpful

    Tesserax Tesserax Jun 10, 2016 7:29 AM in response to s.alismousavi
    Level 9 (53,940 points)
    Wireless
    Jun 10, 2016 7:29 AM in response to s.alismousavi

    What you can expect (bandwidth) and what you actually get (throughput) are two different things.

    When I copy a file from my MBP to TC and also from TC to MBP, I wanna know how much is maximum speed of transferring ?

    There are three things to take into consideration in this scenario:

    1. The bandwidth of the Ethernet connection between the MBP & the TC. Both support Gigabit Ethernet ... so, in theory, the bandwidth of this connection is 1 Gbps.
    2. The bandwidth of the TC's internal hard drive interface. The TC's internal hard drive uses an eSATA interface. eSATA bandwidth is typically around 2,400 Mbps.
    3. The hard drive's rated data access rate. I believe the TC uses a Seagate 7200 rpm Barracuda drive.

    Those things just listed are not necessarily additive, but they all should be taken into consideration when trying to determine the overall available bandwidth between the MBP & the TC. The bottleneck will be the drive interface, not the Ethernet connection between the MBP & the TC.

    Also how much is maximum speed of transferring from a gigabit NAS that I connect to TC with ethernet ?

    Basically, the same three things apply here as the above.

     

    Regardless of the overall available bandwidth, the actual data rate or throughput will be less, possibly much less. How much less would again depend on your actual network with these items connected. You would have to make the throughput measurements yourself to make an actual determination of the true "speed" performance.

  • by LaPastenague,

    LaPastenague LaPastenague Jun 9, 2016 4:44 PM in response to s.alismousavi
    Level 9 (52,280 points)
    Wireless
    Jun 9, 2016 4:44 PM in response to s.alismousavi

    Here is a speed test over ethernet from Mac mini running Mountain Lion.

     

    DiskSpeedTestML.png

     

    Wireless off.

     

    Same test over wireless.. but remember this is not gigabit. (450Mbps link speed on this Mac).

     

    DiskSpeedTestMLwifi.png

  • by LaPastenague,Helpful

    LaPastenague LaPastenague Jun 10, 2016 7:30 AM in response to LaPastenague
    Level 9 (52,280 points)
    Wireless
    Jun 10, 2016 7:30 AM in response to LaPastenague

    Here is the test from a later computer.

     

    EL Capo..

     

    By ethernet.

     

    DiskSpeedTestelcapoether.png

     

    Over wireless which is linked at 1053Mbps so near to full AC speed.

     

    Screen Shot 2016-06-10 at 9.45.07 AM.png

     

    DiskSpeedTestelcapowifi.png

     

    Note as per Tesserax .. the amount of variation is huge.. it is hard to give numbers that are reproducible. Changes from one computer to another.. from even one TC to another are dramatic.

     

    Here is result to Synology NAS.

     

    DiskSpeedTestsyno.png

     

    I am not sure why the write speed on this computer is so slow.. from a Windows PC i can get 100MB/s or very close both read and write.

  • by s.alismousavi,

    s.alismousavi s.alismousavi Jun 10, 2016 7:40 AM in response to LaPastenague
    Level 1 (4 points)
    Wireless
    Jun 10, 2016 7:40 AM in response to LaPastenague

    Synology NAS test is over ac wifi too or ethernet??

  • by LaPastenague,

    LaPastenague LaPastenague Jun 10, 2016 7:03 PM in response to s.alismousavi
    Level 9 (52,280 points)
    Wireless
    Jun 10, 2016 7:03 PM in response to s.alismousavi

    Ethernet.. you will never get 100MByte/s speed through wireless even if the link speed is 1300Mbps.. remember always wireless is half duplex.

     

    Here is the speed over wireless. Don't ask me to explain the crazy improvement in write speed.. but the drop in Read is as expected.. still very good I must say.

     

    DiskSpeedTestsynwifi.png