Time Machine on TC Fails - Error 21
Time machine on my Time Capsule has been working fairly well since my first post was answered (which required a clean install on my MBP). Now Time Machine is having trouble again. For the past week it has been unable to backup - various errors all surrounding the mounting of the Time Machine drive.
TIME MACHINE ERROR
Unable to complete backup. A network problem may have interrupted the connection between your computer and the backup volume.
Of course, it continues to have this problem whether connecting wirelessly or via Ethernet.
Here is the actual log file:
Starting standard backup
Mounted network destination using URL: afp://Ryan%[email protected]/Time%20Capsule
Backup destination mounted at path: /Volumes/Time Capsule
Disk image /Volumes/Time Capsule/Ryan Griffith’s Computer_0017f2c4accb.sparsebundle mounted at: /Volumes/Backup of Ryan Griffith’s Computer
Backing up to: /Volumes/Backup of Ryan Griffith’s Computer/Backups.backupdb
Failed to create progress log file at path:/Volumes/Backup of Ryan Griffith’s Computer/Backups.backupdb/Ryan Griffith’s Computer/2009-02-16-064630.inProgress/.Backup.256657501.414697.log.
Stopping backupd to allow ejection of backup destination disk!
Stopping backupd to allow ejection of backup destination disk!
Backup failed with error: 26
[SnapshotUtilities mountPointForVolumeRef] FSGetVolumeInfo returned: -35
Failed to eject volume (null) (FSVolumeRefNum: -128; status: -35; dissenting pid: 0)
Anyone have any ideas?
Ryan
I have been having the same issue for 3 weeks now. Unable to complete backup. A network problem may have interrupted the connection between your computer and the backup volume. error. I've upgraded and downgraded the firmware. I've connected wirelessly and Ethernet. No dice. I've unplugged the TC and restarted. Same error message. I can see the TC in Airport Utility. Everything looks right in the settings. I have Disconnected USers from the airport disk and tried backing up...Nada. I can access and retrieve backup files through Time Machine no problem. I want to associate this error with the latest System Update, but I'm just not sure. More people are talking about the firmware causing errors rather than the system update. I will probably have to call Apple Support I guess.
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Your computer info says : iMac Aluminum 24" ....... 320GB HD.
So, I assumed your internal HD is 320GB and you are currently using 298GB of it. Therefore my simple calculation was not "298GB + 153GB" but "320GB + 153GB(ca.)". Did I misunderstand?
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Based on the Macs and other items I already had, the setup that the local Apple store recommended to me for backup is what I followed. Here's a summary:
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What are your recommendations?It may be helpful for others for me to post the approach I've decided to take, which seems to be working well.
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My primary need is for backup in case of drive failure. I also have some files that are extremely important that I want redundant backup for.
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1. ChronoSync for bootable backup clone of drives scheduled monthly and done over the home network. Can easily be triggered manually if there is a big change (SL install, etc) that I want to make sure is included
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Pluses:
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I also looked at SuperDuper and Carbon Copy Cloner.
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I have exactly the same problem.
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See A8 here.
http://pondini.org/TM/Troubleshooting.html
The sparsebundle should have case sensitivity turned on.
I cannot even fathom how it could have changed.
Let me recommend before you start fooling around with the sparsebundle.
Do a full network start.
Power everything off.. start up modem.. wait 2min.. power up the TC.. wait 2min.. power up any other network gear like switches.. wait..
Now power up the computer and try it.
If the error is the same.. I would do a factory reset of the TC.. give it all short names, no spaces and pure alphanumeric. Then reset TM .. see A4 in the same reference as above.. and do a verify of the backups.. A5 above and try the backup again..
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Then erase the TC and start over.. it is sometimes necessary as TM does get itself in a knot. -
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My guess would be it has created an entirely new backup of your drive when you upgraded to Mavericks.
See Here: http://pondini.org/TM/1.html
And here: http://pondini.org/TM/9.html
Peruse the whole site. There is a lot of information there. -
Time Machine reports, "backup failed." What do I do?
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See if Pondini's great site helps...
http://Pondini.org/TM/Troubleshooting.html -
Brand new Mac, had to erase drive through disk utility as time machine back up failed on initial setup, USB cable popped out Now can only access disk utility as won't load to log in screen. The only has the option in disc utility is to re-install Mountain Lion which my Mac won't allow or loading another time machine back up but after an hour of it processing, that didn't resolve the issue either! The time machine back up is the latest back up of my Mac Book Pro which was using OS X Maverix. I'm guessing I'm going to have to take my Mac to the store but that would be a hassle so does anyone have any ideas?
Follow this guide using another Mac.
Insert your newly created Mavericks USB into you Mac, press the power button and then hold down 'option,' until it gives you an option to boot from the USB. You will then be able to erase the internal disk with Disk Utility and reinstall Mavericks straight after.
After that you should be able to use Migration Assistant to restore your applications and user data. -
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A whole lot about Time Machine for help with TM problems. Also you can select Mac Help from the Finder's Help menu and search for "time machine" to locate articles on how to use TM. See also Mac 101- Time Machine.
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Trying to encrypt Time Machine backup disc getting message - Error preparing Time Machine backup disc- size error usually not being multiples of 512, encryption.
I got the same problem.
But I think it cannot be related to not being a multiple of 512.
As when I devide the number of bytes 3.000.592.982.016 by 512 is equals 5860533168.
3.000.592.982.016 / 512 = 5860533168.
So what could be the real problem?
With kind Regards -
Forgive my clumsiness ---
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Caio. -
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Launch your console program (located in the utilities folder) and click on all messages in then left column then type "backupd" in the filter box in the upper right. Read the messages, it may give you a clue as to what's causing the problem.
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