Haswell rMBP - How Long is Your Setup Assistant Restore from Time Machine Taking?

Discussion in 'MacBook Pro' started by pat.micunnis, Oct 31, 2013.

  1. pat.micunnis macrumors regular

    Joined:
    Sep 24, 2013
    #1
    I am using Setup Assistant to restore a 400GB Time Machine (stored on the new TC) to my 15" 2.3/16/1 TB/750 M. It's took 8 hours.

    Does that sound right? I thought there would be performance gains with the new SSD (in particular for the 1 TB).
     
  2. lg251 macrumors 6502

    Joined:
    Dec 3, 2009
    Location:
    Canada
    #2
    On my 13inch, I transfered around 300GB in about an hour and half.
    My source was an old lacie 7.2k RPM firewire 800 with thunderbolt adapter.

    Pretty fast IMO, but I did not transfer any apps. Only docu/data and such.
     
  3. kapooty macrumors newbie

    Joined:
    Jul 29, 2012
    #3
    I transferred 170gb in approximately 50 minutes. An exact copy of the OS (apps/docs/settings) from my Macbook Air. Although, not sure this was a smart move. My Messages stopped working (could not connect my icloud account), and I had to reset all my user settings on the Pro to get it to work properly.

    My source was a time machine backup on a 1.5 TB Western Digital USB 3.0 portable hard drive.
     
  4. hellric macrumors member

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    Feb 8, 2010
    Location:
    Belgium
  5. AlecMyrddyn macrumors 6502

    Joined:
    Dec 5, 2008
    Location:
    Southern Maine
    #5
    Sounds right to me, since the restore is only as fast as the slowest link in the chain.

    Your SSD may be fast (Read & Write speeds near 1 GBps), but the TC has a HD, not an SSD and you are transferring over WiFi. The maximum possible 802.11ac speed is 1.3 Gbps, which is 166 MBps (Gigabits vs. Megabytes). High end SATA HDs can sustain an average read speed of 150 MBps. In the real world, you are probably lucky to hit 50 MBps, and it depends on the number and type of files that are being accessed, plus other overhead.

    400 GB @ 50 MBps with no other overhead would take 2.27 hours.

    It's also not like you are restoring one big file, you are probably restoring hundreds of small files, which Time Machine has to get the latest version of from the backup, then transfer, then create/update.
     
  6. pat.micunnis thread starter macrumors regular

    Joined:
    Sep 24, 2013
    #6
    I was hard-wired. But computer was plugged into my cable modem (Verizon FIOS). Would it have made a difference if I hard-wired my ethernet directly to the TC?
     
  7. AlecMyrddyn macrumors 6502

    Joined:
    Dec 5, 2008
    Location:
    Southern Maine
    #7
    It might have... I assume your cable modem only has 100 Mbps Ethernet on it, if that's the case you limited yourself to 12.5 MBps maximum... If you have an AirPort Time Capsule, I'm confused as to why you didn't plug directly into it...

    If everything was Gigabit Ethernet, the limiting factor would still have been the Hard Drive the Time Machine backup was saved on.

    If you introduced 100 Mbps Ethernet into the mix, the fastest you could have transferred 400 GB is 9.1 hours.
     
  8. pat.micunnis thread starter macrumors regular

    Joined:
    Sep 24, 2013
    #8
    I was distracted -- and obviously wasn't thinking. I recently had Verizon send me their newest router (the "Red" - Gigabit one).
     
  9. pat.micunnis thread starter macrumors regular

    Joined:
    Sep 24, 2013
    #9
    I erased my hard drive & reinstalled OS X - and restored from Time Machine backup. This time, with the ethernet cable plugged into the TC directly, it only took ~3 hours for 400GB.
     

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