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time machine sick to death of it!

7145 Views 57 Replies Latest reply: Jul 2, 2013 2:25 AM by Alex Nicholls RSS
  • Pondini Level 8 Level 8 (38,710 points)
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    May 2, 2013 12:39 PM (in response to Alex Nicholls)

    Alex Nicholls wrote:

    . . .

    Time Machine could not complete the backuTime Machine could not delete the backup disk image “/Volumes/TimeMachine/Alex’s MacBook Pro.purgeable

    The ".purgeable" is the key -- TM had previously sent a message about the backups failing verification, per #C13 in Time Machine - Troubleshooting.  That's at least the second time that's happened to you, right?  If so, it sounds like there's a problem with the NAS, the connection to it, or compatibility with the version of OSX you're running.

     

    You'd apparently clicked "Start New Backup," but TM couldn't delete the old one. 

     

    Network destination already mounted at: /Volumes/TimeMachine

    Found 1 partially deleted backup image.

    Deleted backup image: /Volumes/TimeMachine/Alex’s MacBook Pro.purgeable.  616.2 GB available on host volume.

    Apparently, this time it was able to delete the old backups, and made a new sparse bundle.

    Backup content size: 369.1 GB excluded items size: 16.9 GB for volume Macintosh HD

    422.68 GB required (including padding), 615.57 GB available

    Ready to make a new, full backup.

     

    Waiting for index to be ready (101)

    Assuming that message has been there for a while, and/or there are a lot of them, TM is having a problem creating the index.  Again, sounds like a problem with the NAS, the connection to it, or possibly compatibility.

     

    Considering all the troubles you've had with this setup, I'd strongly recommend trying something else more reliable.  See  Time Machine - Frequently Asked Question #2 for options.

  • Pondini Level 8 Level 8 (38,710 points)
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    Jun 10, 2013 6:27 AM (in response to Alex Nicholls)

    Forgive me, but I've "lost the trail" here and really don't want to read back through all 4 pages.

     

    Are you still backing-up via the Netgear box?  If so, forgive me again, but I think you're beating a dead horse.  Some folks get NASs or drives connected to routers other than Time Capsules to work, but often they either don't work at all, or don't work well, as in your case.

     

    At a minimum, I'd strongly recommend keeping "secondary" backups, if you aren't already.  See Time Machine - Frequently Asked Question #27 for some suggestions.

     

    I'd also recommend either using a different app to back up via the Netgear, or using Time Machine with one of the other destinations in Time Machine - Frequently Asked Question #2.

     

  • Pondini Level 8 Level 8 (38,710 points)
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    Jun 10, 2013 7:08 AM (in response to Alex Nicholls)

    Alex Nicholls wrote:

    . . .

    Cant see your reply on here for some reason...

    Yeah, that's an intermittent problem with the forums. Something about the servers getting out of sync. 

     

    It seems that no backup NAS is reliable

    Some folks get them to work, but yes, there do seem to be lots of problems.  See the pink box in Time Machine - Frequently Asked Question #2 for some explanation.

     

    My suspicion is simply that working with TM is an afterthought to the NAS makers; most of their effort is on their other stuff.  And TM has unique requirements. I think some of them just don't ever quite get it right, especially error detection and correction.

     

    - even Macs' own Time Capsule doesn't have the best of recommendations

    Well, anything wireless is bound to be less reliable than a good old external HD.  Nature of the beast.

     

    And while Apple claims to use server-grade drives, they don't seem to. 

     

    We don't have any figures about total sales vs. problems, but they seem reasonably reliable to me (I have one, no trouble at all, but in a near-ideal setup).  And you cannot beat the convenience for backing-up a laptop.

     

    Many (most?) are in the hands of very non-technical users (who'd be hard-pressed to set up a NAS, much less your setup); some are in places with marginal signals and/or unreliable AC power (mine's on a U.P.S. along with the modem and USB drive), so it's really hard to tell.

     

    That's why I send so many folks to the links above (#2 and 27). 

     

    Message was edited by: Pondini

  • ds store Level 7 Level 7 (30,305 points)
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    Jun 10, 2013 7:41 AM (in response to Alex Nicholls)

    It seems that no backup NAS is reliable - even Macs' own Time Capsule doesn't have the best of recommendations.

     

    I agree because anything wireless or network related adds a extra level of complexity and another potential source of failure.

     

    There is a old saying, "Keep it simple stupid" and nothing is more simpler (or cheaper) than a bootable clone, connect a wire and clone, update it with error checking, simple as pie.

     

    One or two per each machine and your safe for decades.

     

     

    I give you and Pondini both a lot of credit for trying so hard to make things "just work", but it's never going to happen unless TC gets a SSD,  a decent processor and the software gets a whole lot more intelligent.

     

    Right now you two are replacing the missing intelligence factor and your also fighting a unseen foe of failing sectors on boot hard drives and network glitches, both solvable with more reliable SSD's and a more intelligent designed software.

     

    Perhaps one day, but that day is not here as people won't spend over $1000 for a reliable wireless NAS  system.

     

    Apple is slapping bare bones intelligence, a hard drive and a fancy case/marketing and selling TC for $500 and even that price point is scaring people away.

     

    So a $130 external powered drive + cloning software is the cheap and reliable way to go with the most features and options.

  • Pondini Level 8 Level 8 (38,710 points)
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    Jun 10, 2013 7:54 AM (in response to ds store)

    The problem with that is the inconvenience for many users, especially the non-techie ones.  Not everyone is going to connect an external HD to their laptops every day to do a backup.  They should, but they just don't.

     

    That's why a Time Capsule, in conjunction with regular clone backups is often the best combination.

  • ds store Level 7 Level 7 (30,305 points)
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    Jun 10, 2013 6:29 PM (in response to Pondini)

    Not everyone is going to connect an external HD to their laptops every day to do a backup.

     

     

    They will if they are reminded to do so.

  • Pondini Level 8 Level 8 (38,710 points)
    Currently Being Moderated
    Jun 10, 2013 6:33 PM (in response to ds store)

    Are you going to remind them? 

     

    Time Machine won't send a message until they go 10 days without a backup (and if they leave TM off, and use Back Up Now, they won't even get those).

  • ds store Level 7 Level 7 (30,305 points)
    Currently Being Moderated
    Jun 11, 2013 10:23 AM (in response to Pondini)

    This in turn means that third-party Time Capsule devices have to rely on reverse-engineered implementations of AFP to continue functioning, and OS X updates occasionally break third-party Time Capsule devices, sometimes for weeks.

     

    Thought you would be interested.

     

    http://arstechnica.com/apple/2013/06/new-os-x-uses-windows-file-sharing-by-defau lt/

  • Pondini Level 8 Level 8 (38,710 points)
    Currently Being Moderated
    Jun 11, 2013 10:31 AM (in response to ds store)

    Yes, that's one of the reasons NASs tend not to work well with Time Machine -- the NAS makers just don't seem to get it entirely right.

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