MacBook Pro :: How Much Space Does A Time Machine Backup Require

Jan 4, 2011

I have a 15" MBP with a 250GB HDD. I have about 150 gigs free, so obviously only 100 gigs are in use. So if I use my external HDD to backup to Time Machine, will I only need 100 gigs of it, or will Time Machine need the full 250GB for the backup?

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MacBook Pro :: Time Machine Backup Fails Due To Lack Of Space, Although Plenty Of Space Available On External Drive?

Mar 14, 2012

I've bought a 1 TB iomega ego mac edition II external fire wire drive. Once connected it asked whether i want to create a password and whether i want my data encrypted, to which i answered yes. Then a time machine backup started and failed after backing up 5.25 GB out of 39 GB of my data with the following error: "The backup disk ran out of space unexpectedly. Time Machine will try to make more space available by removing expired backups during the next scheduled backup". When i look at time machine it shows there is 994.29 GB available on iomega ego drive. The drive then went into: "Encrypting Backup Disk" message and it takes forever.

Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.3)

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MacBook Pro :: How Much Space Required For Time Machine Backup

Aug 28, 2010

i was wondering how much space should i partition for my time machine backups on my 500 GB external drive. I currently use about 120 GB of my 320 GB internal MBP hard drive. Would 350 GB be enough for my time machine backups? Or more or less. What did you guys do?

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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 Backup Need More Space Than Available

Sep 6, 2010

My MBP has a 500GB HDD and I have about 70GB free. My backup drive is also a 500GB HDD and has been erased. I chose the drive for my Time Machine backup but it fails and Time Machine says it needs 507GB when the estimated was only 429GB. Why does it need the additional 80GB?

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IMac :: Time Machine Says I Don't Have Enough Space For A Backup?

Nov 18, 2010

I have done a clean install of Snow Leopard and used migration assistant with time machine to bring system back to original state. My problem is time machine now says I don't have enough space for a backup. The iMac has a new hard drive so I am not sure what is going on. I could always Format and restart TM but I am not real happy about trying that. It will be may last resort.

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OS X :: Time Machine HDD Space Requirement For Backup?

Jun 22, 2010

May I know if lets say the size of my MBP's HDD is 500gb, must i get a bigger hdd just so time machine can work or i can just get another 500gb?

reason for asking is because, due to those computer calculation etc, the external harddisk maybe a couple of mbs smaller than that of the internet harddisk.

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OS X :: Finding Appropriate Hdd Space For Time Machine Backup?

Jun 26, 2010

What should the optimum space of my external HD be, in order to keep my Timemachine backup in? My MBPros HD is 185GB, how big should the external drive in which the TM backup will be made? And why?

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OS X :: Time Machine Eating Disk Space / Eat GB's Of Hard Disk Space While Preparing Backup

Dec 11, 2009

whenever I run Time Machine on my PowerBook G4 (1.5 Ghz / 1Gb RAM / OSX 10.5.8) it will eat up GB's of hard disk space while 'preparing the backup'. After that it finishes the backup, but I don't get the space back. I'm talking about the internal HD, not the external target disk of course. Does Time Machine use the space to generate some temporary files? Any ideas how I can get my disk space back

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Applications :: Free Up Space On My Time Machine / Says Backup Full

May 5, 2009

or set it up to overwrite the oldest material.it works fine on my laptop, but i added my new imac to the time machine backup and it never works b/c it says backup full, so its yet to do a backup

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OS X Yosemite :: Not Enough Space On SSD Drive To Import Data From Time Machine Backup?

Dec 2, 2014

I just got a new 256GB SSD drive for my mac, I want to import my data from time machine backup, but its larger than 256GB since it used to be on my old optical drive. How can I import my latest backup keeping out some big files on the external drive?

Info:
MacBook Pro, iOS 8.1.1

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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 Mavericks :: IPhoto Library Deleted From Computer - Not Enough Space For Time Machine Backup?

Aug 23, 2014

My entire iPhoto Library is gone, inaccessible, doesn't show up in finder. I tried to restore my last Time Machine back up but it says that I don't have enough space on my startup disk. In order to create space I deleted everything nonessential and moved all of my essential folders such as documents, photos, videos, everything, etc. to my external drive, then deleted them from my hard drive. I emptied the trash to make sure that everything was wiped.

I tried to do the Time Machine back up of my iPhoto Library again and is still says I don't have enough space. I looked at my storage under About this Mac, and it says that 120.35 GB of my current computer storage are photos, however, I don't have ANY photos on my hard drive at all. I don't know what to do because I can't delete applications and there is literally nothing else I can delete from my computer, so I don't understand how 135 GBs of storage is being used up.  

Could there be somewhere my photos are hiding? I just don't understand why my library got deleted in the first place for that matter.

Info:
MacBook Pro, OS X Mavericks (10.9)

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MacBook Pro :: Slim Hard Drive Doesn't Require Time Machine Backups

Jun 19, 2014

I have just purchased a Toshiba Stor.E Slim hard drive, which I do not require for Time Machine back ups.  Should I use the Tuxera NTFS driver, or should I format the hard drive for Mac?  Is any benefit over formatting vs using the driver?  I pretty much use Macs all the time, but there may be rare occasions when it would be useful to hook up to a PC.

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Hardware :: Does Time Machine Require A Dedicated External HDD

Jun 23, 2010

I just got my 13" MBP a month ago and am new to Macs. And I've never done any systematic, organized backups on any of my Windows machines in the past.

If I wanted to use Time Machine, should I plan on dedicating an external HDD for this? Or could I also use the external for ad-hoc file copying and storage?

My MBP has a 250GB internal HDD, and I was planning on getting a portable 320GB external.

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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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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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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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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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MacBook Air :: Time Machine Back Up Not Enough Space?

May 6, 2012

I just tried to back up my Mac Book Air and I use OS X 10.7.3.   

I got a message which said that there was not enough space on my external hard drive.   The message said that I needed 50 GB and the external drive only has 43 of space... Note, when I check out the hard drive, it says:  ""Available 43.63 of 249.93". 

The sole purpose of my hard drive is for back up purposes.  So,  there isn't anything other data or information on the drive..

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MacBook Pro :: Time Machine Says Not Enough Space On 1T External HD

Jun 3, 2014

My Mac Book Pro has 57 Gb and the time machine says there's not enough space on a 1T external HD. Why?

Info:
MacBook Pro (15-inch Mid 2012), iOS 7.1.1, Time machine back up

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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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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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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 :: Using Time Machine Restoring On New HDD - Time Machine To Recognize The Backup

Nov 19, 2008

I just replaced my HD on my 15"MBP. The install went well until restoring my data from Time Machine. The apps came over fine but none of my data did. Yes, I checked all the boxes on the "restore from backup" menu.

Of course now when I start up time machine the backup isn't there. How do I get Time Machine to recognize the backup? I have it on two places - a time capsule and a separate external HD.

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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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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 Pro :: Hard Drive Space Disappearing - Turn Off Time Machine?

Apr 18, 2012

When I send files to trash the disc space is not freed up.I've looked on the forums and some people have had success with turning off time machine.I didn't set time machine up because I back up to a portable hard drive only the space is disappearing on that too!

Info:
MacBook Pro

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