Time Machine Settings

Discussion in 'iMac' started by GeneinTO, Jul 7, 2011.

  1. GeneinTO macrumors newbie

    Joined:
    Jul 21, 2008
    Location:
    MI, USA
    #1
    Can I change the time and frequency that my Time Machine runs? I only want it to run once a day at 5:30 p.m. I have a 24" iMac running Snow Leopard backing up to Western Digital 2TB drive.
     
  2. likegadgets macrumors 6502

    Joined:
    Jul 22, 2008
    Location:
    US
  3. basher macrumors 6502

    basher

    Joined:
    May 27, 2011
    Location:
    Glendale, AZ USA
    #4
  4. talmy macrumors 601

    talmy

    Joined:
    Oct 26, 2009
    Location:
    Oregon
    #5
    Running TimeMachine once per day reduces its ability to recover from accidental deletions and changes, a major feature of that program. If you just want daily backups consider getting CarbonCopyCloner or SuperDuper! which can be scheduled to clone the drive at the end of the day.
     
  5. likegadgets macrumors 6502

    Joined:
    Jul 22, 2008
    Location:
    US
    #6
    I use SuperDuper in addition to time machine. You point out an important feature, accidental deletions, but not if done less than 1 hour from the last time machine backup. I like the ability to modify the schedule to something like every three hours. Often I get a slowdown (even on an iMac 27 3.4 2011) beach ball when time machine runs to an external firewire disk (may be backing a movie download from itunes)
     
  6. basher macrumors 6502

    basher

    Joined:
    May 27, 2011
    Location:
    Glendale, AZ USA
    #7
    You sure it's TM that's the source of your slowdown? I have the same iMac with a GoFlex FW drive attached and never experience any slowdown when TM runs. And at times it's backing up 50GB+
     
  7. portishead macrumors 65816

    Joined:
    Apr 4, 2007
    Location:
    los angeles
    #8
    You're always going to experience some lag since you have multiple disks reading and writing at the same time. It's usually not huge but it can definitely be noticeable with large backups if you have slow internal and external drives.

    If you have a RAID 0 SSD backing up to a RAID 5 thunderbolt enclosure, you're probably not going to notice anything. A 1TB 5400 RPM internal drive backup up to a NAS or USB drive is going to cause issues accessing other media/files on those drives.
     
  8. sgtbob macrumors regular

    sgtbob

    Joined:
    Sep 10, 2008
    Location:
    Kansas
    #9
    Time Machine

    My Time Machine seems to backup every hour, every day, then every week. What happened to the backups prior to a week ago? I have not changed any of the settings, but in trying to find an issue of a month ago is no longer possible. Any idea what has occurred. I have a 500 GB HDD as the backup destination.

    Bob:confused:
     
  9. talmy macrumors 601

    talmy

    Joined:
    Oct 26, 2009
    Location:
    Oregon
    #10
    Should be there unless you run out of room or the file wasn't around longer than a week. It backs up every hour but deletes backup sets so you should at least have one per week for as long as you have been running Time Machine.
     
  10. sgtbob macrumors regular

    sgtbob

    Joined:
    Sep 10, 2008
    Location:
    Kansas
    #11
    Time Machine

    thanks for the reply - and I agree - but the operative word is 'should' - nevertheless, all data has vanished from the external HDD prior to last week. A real Bummer and particularly scary is that I know not what happened - since I changed nothing that I can see.:confused:
     

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