OS X :: Time Machine Backup Failed / Unable To Create Backup

May 3, 2009

I have a 1tb external for time machine back up and have about 750 gb of stuff to back up. I was under the impression that when time machine backs up my stuff it will automatically delete the oldest backup to create room for the newer backup.

My problem is that i did a back up a couple weeks ago and then today i go to back up and it tells me back up failed only 718gb available for 740gb of stuff to back up

anyone have this problem? how can i fix it?

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Software :: Time Machine Unable To Perform Backup / Backup Is Too Large For Backup Volume

Oct 26, 2008

I am getting the following error from Time Machine when doing my first backup. The startup disk being backed up, and the TM disk are both the same size.

Macintosh HD: 465.44 (total); 393.99 (free); 71.45 (free)
Time Machine: 465.44 (total); 465.29 (free)

The Time Machine error is: Quote:

"This backup is too large for the backup volume. The backup requires 472.7 GB but only 465.3 GB are available." why would this be? Other disks are excluded from the backup, and Time Machine is telling me that it needs more space than it actually needs. What should I do?

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Applications :: Unable To Create Backup / Time Machine Stops Working

Sep 10, 2009

I have a mid-2008 (June) MBP 15". Just upgraded to SL last night. I am having a serious issue with time machine. I've been using it with the same external HD since I bought my mac last year. No issues up until I installed SL last night. This morning (my first backup since upgrading), time machine started backing up (~ 9Gb) but just stops at around 300Mb. The clock keeps spinning, but there is no change in the amount backed up.

I'm reading that other folks are having this issue as well. Has anyone figured something out?I've run disk repair (nothing found), restarted my mac & external HD (several times each), and cancelled and restarted the time machine backup (several times). Each time it freezes at a different amount (i.e. 34Mb, 284.2Mb, etc...).

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Software :: Unable To Backup Via Time Machine / Backup Disk Image Could Not Be Created

May 1, 2008

I was a PC user who recently moved to mac. I have a macbook (intel 2.2GHz, 2GB RAM, 250GB HDD). When I was using PC, I backed up all my data to a network storage device (Buffalo LinkStation 250 GB connected to a 802.11g netgear router which is supplied by Sky) using a program called SmartSync Pro, which worked very well. Although I can connect to and mount the Share folder on this drive when the macbook is connected to the network, Time Machine will not back up to it. It wouldnt even recognise the disk on the network.

So I went onto the trusty internet, and found that you can get time machine to recognise the Share folder. (This was obtained from: http://blog.imulus.com/george/software/using-leopard-time-machine-to-backup-of-a-network/)See my comment on their page at the bottom, number 66.

It recommended entering the following in to the Terminal: defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1

Before attempting backup I have to go into "Network" and select the Share folder by double clicking on it. This seems to mount the volume. After this, it can be seen in Time Machine as a potential backup destination.

However, this method does not work for me. Time Machine "prepares" for a while, then gives the following message: Time Machine error. The backup disk image could not be created.

More internet searching took me to macosxhints which suggests creating something called a sparsebundle image on my local system. (http://www.macosxhints.com/article.php?story=20080420211034137) Have not tried this yet as I thought it would be prudent to seek some help first.

Apple have deliberately disabled the ability for Time Machine to back up to network attached storage, (except of course to their proprietory Time Capsule):

Is this because time machine requires a network faster than 802.11g?

Is this because a time machine backup to a network attached storage device is unreliable and the data is corrupted?

I dont want to shell out more cash for a time capsule. I would prefer not to have to hardwire to an external drive (which I will also have to go out and buy). Any thoughts?

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Mac Pro :: Time Machine Backup Failed

Mar 25, 2012

My time machine is not backing up my files anymore. Everytime I start it, it prepares for a very long time (maybe 30min or longer) and then eventually does start. But in the middle of the backup, an error pops up saying that I need to verify the space needed for the backup. But there is definitely space on my back up drive and Time Machine also recognizes the external harddrive. I've tried re-backing up a few times already but it doesn't work properly each time. I can still enter Time Machine and see the older back ups.

Info:Mac OSX (10.5.7)

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OS X :: Time Machine Backup Failed - Need New External HD?

Jun 2, 2010

We just came back from vacation 2 days ago; I checked time machine. It says latest backup is delayed; then latest backup failed; next backup when disk is connected. I have a WD external hard drive. I check to see that it is connected to my IMac and is plugged in for electricity. Restarted my imac - same problem. There is no lite on the WD; does it mean it died? Or what can I try? It is less than 2 yrs old.

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MacBook Pro :: Failed Time Machine Backup

Jun 1, 2012

My orginial MacBook got stolen a few weeks ago and luckily my insurance bought me a new one.  However, I have just managed to get hold of my external hard drive, which had my backuped time machine files on it. 

So I went to my files from my time machine and this is what I did. 

I went to the Time machine icon on the top of my screen and clicked on "Browse other Backup disks".  I then clicked on my external hard drive and it opened Time Machine and then I found my latest update.  I then clicked restored and the files got copied from my time machine to my new Mac.   

The problem that I have discovered is that I restored my files incorrectly and that all I have just done is copied the files over and not restored my MacBook. 

Now that I know how to restore my backuped files correctly, when I try and do it, I do not have enough space on my computer, because I still have the copied files on my Mac.  I have tired to find the files without any luck on my computer.  All I can think of is deleting my hard drive and start again, but I do not have the OS disks as Apple no longer supplies them when you buy a new Mac or it just didn't come with my new MacBook Pro.  

Info:
MacBook Pro, Mac OS X (10.7.4)

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OS X V10.7 Lion :: Time Machine Backup On DS212j Failed

May 16, 2012

This morning everything was fine, but then it happened out of nowhere.Usually my MBP does it Backups on a Synology DiskStation212j, but today it got some errors. [code] Since the backup is made on a NAS i can't use the DiskUtility to repair permissions..(My NAS doesn't have any Errors)

Info:
MacBook Pro (15-inch Early 2011), Mac OS X (10.7.4)

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OS X V10.6 Snow Leopard :: Time Machine Backup Drive Failed

Mar 30, 2012

I bought a new drive and need to get my Time Machine files off the old failed drive. I'm sure there are plenty of discussions about this but I can't find any. (I so dislike the new design for the support communities.)The old drive sometimes lets me access TM so I want to take advantage of one of those times to get everything across. I know it is a very slow process if it can be done

Info:Mac Mini 1.83ghz, Mac OS X (10.6.8), Great for a while.

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Hardware :: Time Machine Backup Failed / Disk Appears To Be Read Only

Jan 1, 2010

iMac 2.66 GHz, 640GB hard drive, 4 GB RAM.

I have a Western Digital external hard drive used by Time Machine. Worked perfectly for a few months. Now every day, I get a message that a backup failed because the disk appears to be read only. I launch Disk Utility, and run Verify Disk It finds nothing wrong. I ask Time Machine to back up again, and it does and continues hourly for the rest of the day. The next day, the same thing happens all over again with the read only problem.

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OS X Server V10.6 Snow Leopard :: Time Machine Latest Backup Failed

Apr 27, 2012

The OS X 10.6.x Server running Time machine, it runs daily backup to external HD, it is fine, but for couple of days, it failed, is there any logs or message that I can read what is going on? The external HD connected with firewire 800 and it still have enough space, so I think it is not a space problem

Info:Mac mini, Mac OS X (10.6)

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OS X Mavericks :: Time Machine Backup Failed - Not Enough Space In External Disk

Sep 12, 2014

Time Machine reported it failed backup due to the shortage of disk space. But I see the total space of partition is 192GB,the whole backup snapshot estimated is 177.56G. 

The massage said that " failed backup, 52.85 GB is needed for backup but it's only  25.17 GB available."  

I know it's 166.35GB of ancient snapshot still exist, but why not OSX to delete it automatically and release more space for new snapshot? 

By the way, I can't delete those ancient snapshot in Finder manually, perhaps permission denied.

Info:
MacBook Pro (Retina, 13-inch, Late 2013), OS X Mavericks (10.9.4)

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OS X :: Time Machine Backup Failed Every Time

Jun 2, 2009

It was working last night. Now it says backup failed everytime. Whats going on? I've tried permissions, ejecting, restart, etc.

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OS X :: Create New Backup - Time Machine Asks To Reuse Previous

May 28, 2010

I have two computers using one Time Machine Disk. The physical disk is connected to my Mac Mini, and it's shared over the network to my MacBook Air. The picture below is the backup disk in case you didn't guess. The notebook is my MacBook Air. So the MacBook Air backs up just fine, but every time my Mac Mini tries to back up, it pops up with "Would you like to reuse the backup "*DIRECTORY TO MACBOOK AIR'S BACKUP*" with this computer?" also shown in the picture below. So I click "Create new backup" and it seems to backup in the Mac Mini's backup folder like it should... until next time. I just want it to back up normally, both of them, without asking me anything first. Until now, I've just disabled automatic backups for my Mac Mini and would backup whenever I felt needed.

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OS X V10.7 Lion :: Time Machine Create New Backup To Improve Reliability

Mar 28, 2012

I'm using Mac OSX 10.7.3. Since a few days, I've some trouble with Time Machine. When TM would create a new backup in the normal hourly loop it creates the message:Time machine has completed the review of its backups. To improve the reliability time machine must create a new backup.

Now I've to options:
1. I can create a new backup later
2. create a new backup
I don't want to create a new backup, I want to use the old one.I still have enough space on my backup volume. I'm using the Airport Extreme and a WD hard drive.

Info:
MacBook (13-inch Aluminum Late 2008), Mac OS X (10.7.3), Time Machine

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Mac OS X Lion Server :: Time Machine Error 'Create New Backup'

May 23, 2012

After updating to Lion server, I moved my Drobo over and setup Time Machine

Many users are prompeted to reuse or create a new backup.

The problem is I log in with credentials of 'USER A', and on the dialog it lists another 'USER B', userb.sparsebundle as the file to reuse.  

I recently had a iMac hard drive die, and i tired to use the time machine on the server, with 'USER A' credentials, i got 4 listings and none of them were 'USER A' 

I check the drobo and 'USER A''s sparsebundle is there. I have tried changeing permissions to read the sparsebudle, but the bundle is a 250k file, not a diskimage of the files even.  

How do i resolve this problem of the wrong users coming up on "reuse or create new backup"? 

How do i access the lost sparsebundle that i cannot log into to get the files for the user that needs them?

Info:
Mac OS X (10.7.4)

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Applications :: Time Machine Taking Long Time To Backup - Changing Backup Time?

Dec 11, 2009

I have looked into this a lot already. It is to much that Time Machine backs up every single hour! It would be nice to set it to something like 3 or 5 hours. I have tried a 3rd party app to do this, but... If my computer was off or asleep when it was supposed to back up, it would get an error. It would not just do the backup when i turned it on or when it came out of sleep like stock Time Machine does. I have also seen a way to change the time incraments in the Terminal.(I am very good with it, not a noob) I have tried this and it screws up time machine completely. Maybe it does not work with the newest OS X. By the way... I have a 2010 MacBook Pro, got it 2 months ago.

Does anyone know a solid 3rd party app, that will work seamlessly. Or has anyone changed the time in Terminal and are currently using something different than 1 hour. There is a lot of examples online, but I would like the codeing that you literally used.

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OS X V10.6 Snow Leopard :: Time Machine Backup Freezes On Initial Backup Attempt?

Mar 20, 2012

I just purchased a Seagate 3 TB USB 2.0/3.0 external drive to use as my time machine backup drive.  I have a MacBook Pro that was purchased about 3-4 years ago.  The MacBook Pro has a 120 GB hard drive and is currently running MAC OSx 10.6.8.  I also have another WD 1 TB FireWire external drive that I use to store all of my media files.   

After I followed the instructions for installing the new Seagate drive for use with the MAC OSx, I initiated a time machine backup.  It very quickly determined that it needed to back up almost 900,000 files totaling just about 400 GB.  It started the backup process at a rate of about 1 GB per minute.  In a little less than an hour it reach 53 GB and remained there for an additional two hours before I decided to stop the backup.   

Once I got the backup stopped, I deleted the backup and decided to look at my energy saving settings.  I noticed that the "Put drives to sleep whenever possible" check box was checked, so I unchecked that option and restarted the MAC.  I then initiated the time machine backup again.  Like the first time it quickly determined that it needed to backup the same amount of data as before and started the backup process at a rate of about 1 GB per minute.  Before going to bed at around 11 PM last night it was at about 60 GB so I thought I was out of the woods (having gotten further than the 53 GB earlier).  When I woke up this morning at 5:30 AM it was sitting at 69 GB. 

I am really frustrated at this point and don't know why the time machine back up would be failing on a brand new hard drive. PS - I was previously using a Seagate 1.5 TB USB drive as my time machine backup and never had any issues with it.  I decided to use the 1.5 TB drive for a different purpose, which is why I have the new 3 TB drive to use as a backup.  And I still have the full backup on the 1.5 TB drive just in case anything were to go awry.

Info:
MacBook Pro, Mac OS X (10.6.8)

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OS X V10.7 Lion :: Identity Of The Backup Disk Has Changed On External HD Time Machine Backup

Apr 30, 2012

I have a external HD which has always worked fine under snow leopard. Since upgrading to lion I keep getting the following message The identity of the backup disk has changed since the previous backup.The disk may have been replaced or erased, or someone may be trying to trick your computer into backing up to the wrong disk. And after this the drive disappears from the desktop appearing agian only after restart. What can I do do rectify this? Delete and re-intialise the drive?

Info:
MacProQuad2.6 4gbRam, Mac OS X (10.4.8)

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MacBook Air :: Time Machine Backup Takes Up To 6 Hours To Do A Backup Of About 30GB?

Jan 9, 2010

Just wanted to check if he problem was unique to my MBA (Rev B, HDD) or you notice it too ;

My Time Machine backup takes up to 6 hours to do a backup of about 30GB. And each backup size is 31.5GB everytime !!

I have the following Config - 80 GB for OSX (53GB Free) and 40 GB (10GB Free) for Win 7 on Bootcamp. Sometimes I wonder if TM making a backup of Win 7 also everytime. (Does it mean - In a way its good, that means I should be able to restore the entire hard disk from TM including Applications, Win 7 , bootcamp and all the programmes installed in Win 7 in case I have a problem ?)

But the speed should still be fast... 6 hours to do a 32GB backup is torturous specially because then I have to leave the machine alone and cannot use it.

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OS X V10.7 Lion :: Way To Make A Backup Of Time Machine Backup On A 2nd Hard Drive?

Mar 9, 2012

Is there a way to make a backup of your Time Machine backup on a 2nd hard drive? I want to be doubly sure that my data is backed up!Right now I get an error saying that the second hard drive isn't authorized to copy my Time Machine data from the original hard drive I have set up as my Time Machine.

Info:
iMac, Mac OS X (10.7.3)

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OS X :: Time Machine Backup After HD Replacement / Redundent Backup Going Take Up Space

Jan 11, 2011

I just replaced the stock 160GB HD in my unibody macbook with a WD Blue Scorpio 640GB HD. I used Super Duper to clone the old drive to the new one, approximately 115 GB.

Now Time Machine wants to backup the full 115GB to my Time Capsule, which kinda sucks because it's going to be a redundent backup that's gonna take up over a 10th of my TC's space. Is there any way to avoid this and still use Time Machine?

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OS X :: Time Machine Not Working / Backup Is Too Large For The Backup Volume

May 23, 2009

Well TM is acting up. I get an error that reads: "This backup is too large for the backup volume."

Both the internal boot disk and the external baclup drive are 1TB. The internal one has a two partitions, the OSX one that is 900GBs and a 32GB NTFS one for Boot Camp. The external drive is a single OSX Extended part. that is 932GBs.

Both the Time Machine disk, and the Boot Camp disk are excluded from the backup along with a "Crap" folder for temporary large files.

Time Machine says it needs 938GBs to backup only the OSX disk, which has 806GBs in use with the rest free. WTFFF?

This happened after moving a large folder (128GB in total) from the root of the OSX disk over to my Home Folder.

I have reformated the Time Machine drive and have no backups at all of my data and it refuses to backup!!

Why would it need 938GBs of space to backup if the disk has "only" 806 GBs in use??? Is there anyway to reset Time Machine completely???

Some quick screenshots:

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OS X V10.7 Lion :: Time Machine Backup Is Too Large For The Backup Disk?

Feb 10, 2012

my TM wil not back up! It states that this backup is too large for the backup disk. The back up disk requires 573.50 GB but only 225.23 GB are available. The TM needs work space on the backup disk, in addition to the space required to store backups. Upen TM perferences to select a LARGER backup disk or make the backup smaller by excluding file. 

Okay I;m sorry but obvioulsy I dont get this. I've never called Apple for help! I have every product they sell practically including Protection Plans I never used and no one will help me with this. My MAC is starting to have black or white screens and i can hear it running but it will not do anything so i have to reboot it, it screws up Enturage and then I have to rebuild that ( 5 times this year) anyway... I would like to back everything up- can I delete everything on the Time Capsule or Time Machine; god I dont even know what it is called Im so MAD... help if you can please. I'm going to have to take this to the genius people at the store and probably buy another computer but like before they will not save my files.

Info:
Mac OS X (10.7.3), time cap or Time Machine

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MacBook :: Backup Management / How To Update Time Machine Backup On Different Mac

Jun 30, 2014

There are 3 macs:

A: an old macbook (the white one)
B: a modern macbook pro (retina)
C: another modern macbook pro (TBD) 

I am giving away B now; I expect to get C in 2 months time; I keep A with me all the time.

The goal is to migrate all of the data from B to C. I have Time Machine backups of B.

Since the transition is a long time (2 months), I need to keep working on my data during this period. For this I will use A. This will generate new files, modify old ones, ...

Since A's HDD is much smaller than B's backup, I can move only part of them.

By the way, I have totally erased A and used migration assistant to restore part of my old data from B. So, when I use A now, I do it with my same account as in B (and the same I will use in C).

How do I manage my backups in such a way that, when I will get C, I can safely move all of the data I had in B plus all of the changes and modifications that I have done during the 2 month transition?

Can I just continue to use Time Machine (on A) to update the old backups? I am afraid that some mess could be created because the computers are different (before the backups were taken on B, while now on A), even the present data are different (because now A only contains a subset of the original B data, which I do NOT want to lose), the good point is that the user is the same.

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OS X :: Time Machine - Unable To Complete Backup

Dec 30, 2008

I have an Imac 24" and a Mybook external HDD. ever since Leopard came out Ive been doing backups with time machine, then one day I start time machine for my weekly backup and this message comes up: "Unable to complete backup. An error occurred while copying files to the backup volume." Now I notice that my external HDD was almost not spinning while time machine was trying to backup the status bar of time machine saying how much files need to be copied and the total amount of space needed was super slow and stoped at something like maybe 10 mb I started time machine again same message. I though maybe Mac OSX needed some permission repaires. So I did just that and after that did time machine again same problem. then I said to myself maybe my External HDD has problems so I even formated the HDD, then stated Time machine again this time it was running smoothly just like before I had the problem but the problem came back after 6 gig being copied out of the 25 gig needed to complete the backup process. Now hope I dont need a clean install of my Mac OSX or maybe its my external HDD. maybe my USB having problems?

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OS X :: Unable To Restore Backup From Time Machine

Mar 2, 2009

I'm trying to restore my files from time machine and I chose only to transfer my files and it seemed to do that but how do I access them now and put my pictures in iphoto and music in itunes?

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OS X :: Time Machine Backup File Unable To Open

Sep 11, 2010


I recently used time machine for the first time in a long time. I use my external HD USB for the backup. After the back up was complete, I unplugged the USB cable. I got an error that I needed to put the HD away first (I wasn't thinking). And I didn't pay attention to the error either.

I thought the data was gone, when I didnt see the data in the back up file. I do see the back up file with that date on it. In the file is the .InProgress file. In that file, on right clicking, I see the contents of one folder. This folder has a very long name of numbers and letters. It shows no contents in the finder. THough I know the files must be here. The HD has capacity of 100 Gig. There is only about 20 gigs showing on it. Though there is only 20 gigs available. So, my back up data is there on the HD, and I assume it's in this "empty" file.

* How do I extract the saved files ?

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OS X :: Unable To Access Time Machine Backup In Tiger

Nov 20, 2008

I have 10.4.11 installed and have some time machine backups from a leopard system on one of my externals. When I try to navigate to one of the backups and get into any of the user folders like documents, pictures, etc it says I don't have permission to access them? Yet I check the permissions and they are read/write.

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OS X :: Time Machine Not Doing Backups / Unable To Complete Backup

Aug 5, 2010

I have an Imac 24" and a Mybook external HDD. Ever since Leopard came out Ive been doing backups with time machine, then ...one day..I start time machine for my weekly backup..and this message comes up: "Unable to complete backup. An error occurred while copying files to the backup volume."

Now I notice that my external HDD was almost not spinning while time machine was trying to backup ... the status bar of time machine saying how much files need to be copied and the total amount of space needed was super slow .... and stoped at something like maybe 10 mb ...

I started time machine again ... same message.

I though maybe Mac OSX needed some permission repaires. So I did just that and after that did time machine again ... same problem ....

Then I said to myself ... maybe my External HDD has problems ... so I even formated the HDD, then stated Time machine again ... this time it was running smoothly just like before I had the problem ... but the problem came back after 6 gig being copied out of the 25 gig needed to complete the backup process.

Now ... I hope I dont need a clean install of my Mac OSX ... or maybe its my external HDD ... maybe my USB having problems?

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