Philippe Mingasson

Q: Time Machine extremely slow on Mavericks ?

Hi all !

I've installed Mavericks this morning on my Retina MacBook Pro.

Time machine seem to be SLoooooowwww !

When I clic "start backup", it takes forever to "prepare the backup" and then I when it finally starts to send the data over ethernet (via a thunderbolt adapter), it just doesn't get there. After half an hour, I got something like a few Mb transferered.

Anyone's got the same issue ?

 

Best regards,

MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)

Posted on Oct 23, 2013 10:27 AM

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Q: Time Machine extremely slow on Mavericks ?

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  • by Loner T,

    Loner T Loner T Oct 17, 2014 8:39 PM in response to SCLerer
    Level 7 (24,661 points)
    Safari
    Oct 17, 2014 8:39 PM in response to SCLerer

    If the Armor has a backup on it already, do you just want to check it, or do you actually want to run a backup on it? Did your friend whether the backup was using TM or was it using the WD software?

  • by SCLerer,

    SCLerer SCLerer Oct 17, 2014 8:48 PM in response to Loner T
    Level 1 (8 points)
    Desktops
    Oct 17, 2014 8:48 PM in response to Loner T

    He said he did a Time Machine back up on the Armor

     

    The first thing I did was try to "Back up now" on the Armor. It could not get past "Preparing for backup..."

     

    BTW, while backing up, the Toshiba would occasionally give me a notification about it not being properly ejected, even though it was still in the drive. Could a faulty cable be causing all these problems?

     

    The Armor DOES contain Time Machine backups, but other files as well. BTW, getting spinning beach ball like crazy right now.

  • by SCLerer,

    SCLerer SCLerer Oct 17, 2014 9:05 PM in response to SCLerer
    Level 1 (8 points)
    Desktops
    Oct 17, 2014 9:05 PM in response to SCLerer

    And now I can't turn Time Machine off or Select Disk.  I'm going to reboot the computer.

  • by Loner T,

    Loner T Loner T Oct 17, 2014 9:18 PM in response to SCLerer
    Level 7 (24,661 points)
    Safari
    Oct 17, 2014 9:18 PM in response to SCLerer

    Yes, a faulty connection between the Toshiba and the Mac can cause problems. There are also issues when the Macs are USB3 but USB2 devices get plugged in. I have used Firewire and now I am using TB. If you have a good USB cable, please try replacing the current one with a better one. TM (or backupd) can become a monster where it will consume CPU cycles when it thinks it can recover.

     

    There is also a widget https://www.apple.com/downloads/dashboard/status/timemachinebuddy.html that collects TM logs and  provides a comprehensive start/end set of messages. It installs in your Dashboard with other widgets. I would highly recommend it.

     

    There is a Bible for TM users at http://pondini.org/OSX/Home.html which can provide a lot of insight. If I do not respond, please use that as a resource.

  • by aac0rey,

    aac0rey aac0rey Nov 22, 2014 12:07 PM in response to jonnyfrompã¥lsboda
    Level 1 (0 points)
    Nov 22, 2014 12:07 PM in response to jonnyfrompã¥lsboda

    After almost a week of troubleshooting Time Machine problems and horribly slow AFP performance, your suggestion worked.

     

    From transfer speeds of around 1.5MB/s I am now seeing expected performance of nearly 10MB/s after setting rfc1323=0

     

    Anyone who is having trouble with their Time Machine and Mavericks, I recommend this -- it worked for me.

    jonnyfrompã¥lsboda wrote:

     

    We had problems with very slow backups at my work. We have a AFP share on a Linux server and it has been working fine until Mavericks was released. Then it stopped working for some and got extremely slow for some others.

    The problem seems to have something to do with TCP timestamps ( http://en.wikipedia.org/wiki/TCP_tuning ).

    If we disable timestamps on the server it works fine. If we disable RFC1323 on any Mavericks Mac it also works.

     

    To disable it on your Mac, open Terminal and write:

     

    sudo sysctl -w net.inet.tcp.rfc1323=0

     

    That will disable it until next reboot.

     

    To make it stick after next reboot, write:

     

    sudo sh -c 'echo "net.inet.tcp.rfc1323=0" >> /etc/sysctl.conf'

     

    I hope this will work for you guys too.

  • by ruiluo,

    ruiluo ruiluo Mar 12, 2015 4:50 AM in response to Ronald_Paris
    Level 1 (0 points)
    Mar 12, 2015 4:50 AM in response to Ronald_Paris
    The solution which is not perfect but allow to run Time Machine is to eject the partition in ExFAT to have only the partition needed for Time Machine connected. Once it's done, the flow becomes normal quite fast and never blocked.

    This seems to be working for me.

    I started the backup normally and it worked fine ultill it reached 5.10gb of 54.

    Then it was superslow, 0.01gb every 10minutes or so

    I ejected the exfat partition (I too have a WD external HD divided with 2 partitions, one for Time Machine and an exFat one,

    well immediately the backup started fast again, it's gone up from 6 to 23 gb of 54 in 6 minutes now.

    I hope it will not slow down again.

    EDIT: It worked, less than 10 minutes and it's all done.

    So relieved!

  • by spookyfishuk,

    spookyfishuk spookyfishuk Apr 5, 2015 8:00 AM in response to Philippe Mingasson
    Level 1 (5 points)
    iWork
    Apr 5, 2015 8:00 AM in response to Philippe Mingasson

    sorry to bring up an old thread, I found this thread when searching for a problem that i have with my NAS.... I have some very large sparse bundle and sparse image files on it (a few are as large as 1tb) and there are about 50 or so sparse bundle images. I use them for video editing to keep projects separated etc. i was suffering the same symptoms, extremely slow transfer rates (0.5MBPS when it's usually around 110MBPS). every five minutes or so it would seem to go to normal speed for a few seconds then drop back to slower speed. also the larger images were taking anything upto 30 minutes to mount. it's not a network problem as the NAS transferes at high speed between other operating systems and other NAS's the problem seems to be with mavericks and sparsebundle images. I have other NAS drives on the same network but with DMG's and they all run perfectly as expected. i just thought i would add this as it appears the problems you are having with time machine is just a coincidence and It looks like the real issue is with mavericks and large sparseimages on exernal drives. I have just seen the post above about tcp timestamps so i will give this a go when i get back to my setup. for the meantime, I have needed to access my NAS on an old partition (my emergency boot drive) which has 10.6.8 on it which seems to use the drive at high speed without any issues. i am in the process of converting all my sparsebundle's into sparseimages (i have recently lost faith in sparsebundle images). hopefully that will cure the problem but if mavericks still slows everything down when the NAS is mounted (finder, disk utility etc all go at a snails pace with spinning wheel on screen for minutes everytime i click the mouse) then i will have to try something more drastic. can anyone confirm if the TCP timestamp fix has permanently solved the issue for most people? or any other fixes i might try. many thanks

  • by spookyfishuk,

    spookyfishuk spookyfishuk Apr 5, 2015 2:11 PM in response to spookyfishuk
    Level 1 (5 points)
    iWork
    Apr 5, 2015 2:11 PM in response to spookyfishuk
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