OS X :: Time Machine Disk Usage Discrepancy?
Jul 14, 2009
I'm a longtime IT guy but a Mac n00b. My wife just got a 13" MBP and we really like it. I have an external drive that I've been using for Time Machine. When I did the initial time machine setup several weeks ago it said that the computer had around 100GB to back up (lots of photos). It took a while but finally completed. No problems. I looked at the external drive and the amount of disk being used jibed with what I knew it should be using. Fast forward to yesterday. I happened to look at the external drive and instead of 100+GB being used, there was only 14GB on the disk being used. Whoa. I *HAD* stopped a time machine backup earlier in the day because we were doing some things and I didn't want any other processes going on. Could stopping a TM backup (from the TM menu bar menu) cause something like this? I would certainly hope not. It should not have been deleting files at all--we are FAR from using up the entire disk.
I manually started a TM backup last night and it backed up ~ 100GB (I watched it's progress in the menu) and all was well. After it completed I went to the drive via the Finder and verified that disk usage was what I should expect. I just cannot figure out how it went from around 100GB used down to 14GB used and then back up to around 100GB. Frankly, it concerns me quite a bit. Does this make any sense to anyone out there?
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Oct 15, 2008
My MacBook Pro recently shows I am using about 130 GB of its 233 GB hard drive capacity. When I add the GB's of all its constituent folders, I only see 75 GB being used. What has happened, and how can I resolve this. I've run Disk Utility, and the disk and permissions check out fine. (On my G5, everything adds up, and I've just noticed this discrepancy in the last week.)
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May 25, 2012
On one of my Macs I've still Snow Leopard running and I'm using Time Machine for backups.
Question: After upgrading to Lion on that Mac, will I be able to continue "incremental" Time Machine backups OR will I have to make a complete Time Machine backup of the entire hard drive?
Info:
iMac (27-inch Mid 2010), Mac OS X (10.7.4)
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Dec 6, 2010
So I bought a brand new WD 1TB Elements (USB) to use with Time Machine. I've never used a Time Machine before. I have a MBP13 with a 250GB disk, using the latest Snow Leopard, all updates installed. Formatted the drive to Mac OS Journaled (extended) and set it to use with Time Machine. Works until about 15-17GBs is copied over, than it fails:
1. If I start over it fails very soon after, no matter how many times I retry
2. No matter how many times I reformat it, it always fails
3. I tried one trick I googled - deleting the "inprogress" file - does NOT help
4. SMART status is verified
5. There are no problems if I verify/repair the disk.
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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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Apr 21, 2012
I'm looking for recommendations for reliable brands of USB exteral drives for use with Time Machine back-up. I have a Western Digital Passport drive that used to work ok, but now randomly ejects when I try to run a TM back-up, or even when trying to use Disk Utility on the drive. The Passport drive seems to be failing, so, what is a good (better) brand external drive?
Info:
MacBook, Mac OS X (10.7.3)
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Dec 30, 2010
I lost my OS disk for my macbook pro. I am fully backed up on time machine. How can I do an entire restore without the disk?
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Oct 31, 2007
I have all my media stored on an external hard drive hooked up to my airport. Can Time Machine back up this drive and my iMac?
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Mar 7, 2009
I want to use Time Machine, but I don't want to have all my data sitting in the open on an external drive that someone can just carry away. Can I make an encrypted disk image, and have Time Machine use that as the backup volume?
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Aug 18, 2009
I'm interested in replacing my 250GB HDD for a 80GB SSD. I want to use the old drive as a USB backup disk for Time Machine, but is 5400 RPM fast enough for this?
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Aug 28, 2009
I'm upgrading my MBP hard drive - I currently have it partitioned into two 120GB drives (Mac/Bootcamp). My new hard drive will be a bigger size - can I boot off the install CD and restore to a new sized partition? Or does the partition need to be the same size?
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Mar 10, 2010
I have a mid 2009 MBP 13 and I upgraded it to Snow Leopard. I was going to restore it to an earlier date with Time Machine. I tried to use the original disk with leopard but it said it could not do it due to the fact that I ow have SL. My assumption is that I would use the SL disk to restore?
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Aug 16, 2010
My Time Machine Backups, formatted as Mac OS Extended case-sensitive with journaling, is outgrowing my 1T Seagate Freeagent external hard disk. I would like to replace it with a 1.5T Seagate Freeagent.
I read that Disk Utility could be used to restore my old Time Machine Backups to the new disk, but I have tried this several times in vain. There was probably no problem during the initial phase of block copying, but the process always aborted with an error message that read, "input/ output error". I had formatted my new disk as Mac OS Extended with journaling. I did not forget to erase the new hard disk. I did not allow my iMac to sleep in case this might have caused the problem. As a last resort, I even tried to copy just the backup folder with "cp -Rp" only to learn that this did not work.
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Dec 4, 2008
I keep getting message "time machine is read only".....I check "get info" for time machine disk and it is set to "read-write"..Can't backup any files....even though there is 71gb free on disk..
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Sep 22, 2009
I have had problems after latest update - parallels, airport loss etc. so I thought about restoring my mac with time machine, but after inserting leopard dvd, I only get the initial leopard "galaxy" screen, nothing else. Tried holding c key, via disk utility, etc. Cant boot up in safe mode nor single mode. Wondering wether it is because I am only using an external screen - the screen of my macbookpro went a long time ago.
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Apr 29, 2012
Trying to setup time machine, but the on off graphic is missing, and the select disk button, although the words are there
Info:
MacBook Pro, Mac OS X (10.5.8)
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Jun 5, 2012
How do I reformat a disk to use for Time Machine?
The disk is from Seagate, a GoFlex Home unit that was used originally by someone else with a PC.
Info:
Mac mini, Mac OS X (10.5.8)
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Jun 24, 2014
Mavericks allows the use of multiple backup disks in Time Machine. Is there any way to select which disk to use when browsing a backup?
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Nov 9, 2010
What I'm trying to do is use my Airport Extreme's attached hard drive (a Western Digital MyBook) as a wireless Time Machine disk. I know it's not officially supported by Apple anymore, but I did this for several months in my old apartment and it worked fine. I moved a few months ago, and just got around to setting up my TM disk now (I know, I know, I should have done it sooner ) Since it had been so long I decided to just erase the disk and start fresh. I erased it, connected it to my Airport Extreme, and it shows up fine in the Finder as a folder on the Airport. However, when I click Select Backup Disk in Time Machine preferences, nothing is found.
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Mar 16, 2008
I just bought MacBook Air yesterday (the 80GB version), and love it! It makes a nice companion to my MacBook Pro. I have now one problem. How do I get my Time Machine backup from my Firewire disk to the MacBook since MBA does not have a Firewire port?
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Apr 6, 2008
I just got a message that my Time Machine external backup disk is full. I have another external drive I can use, but buying drives every few months is going to get expensive.
I was wondering what others are doing in this situation.
Is anybody archiving the Time Machine backup? If so, what software are you using and where are you storing your backup?
What kind of backup plans are you using with Time Machine?
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Feb 8, 2009
I'm no newbie but this one has me stumped. I can put file onto a Time machine backup disk that I don't use as a backup anymore but I can't take them off. The Disk still has some backups on it that I would like to keep. But I would like to use the extra space for regular file storage. What gives. When putting a file on the disk it asks for the password but moving them to the trash it will delete everything in the folder but it won't actually delete the root folder. So my question is
1. Can I use the disk and keep the backups on it?
2. How do I get permission to read and write to the disk
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Mar 10, 2009
I have the new Time Capsule and am able to access it remotely just fine. However, because I'm stuck at school all day, I rarely get the chance to back up my Macbook Pro. Does anyone know of a way to have Time Machine backup to a remote disk, such as my Time Capsule? (I'm a Mobile Me subscriber, by the way)
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Apr 8, 2009
I had to give up my Macbook Pro and am now going back to my Macbook. I have everything loaded on a Time Machine backup, but am having trouble getting to my Macbook. I bought a Leopard Install DVD back when they were released, but when I pulled it out I saw it is now scratched. Can I use a Macbook Pro Leopard install disk to restore my Time Machine backup to a Macbook? If not, is there any way to completely restore a computer from a Time Machine backup without an install disk?
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Apr 30, 2009
Disk utility doesn't seem too happy with adding a partition to my existing time machine disk. It has 750GB capacity, with over 200GB avail. I'm just trying to add a 70GB partition and it raises errors every time. I even tried using a mac that doesn't recognize it as a time machine disk, just a USB drive. Still no luck. I cant delete the data on this drive, so its important I just resize and partition without deleting. Any other options other than disk utility out there?
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Oct 28, 2009
When installing OS X I always try to cluster the OS related files at the outer tracks of the hard drive, where the disk is fastest.
(See http://macperformanceguide.com/Stora...anYouNeed.html)
So I generally like to install OS X to an empty hard drive, and be done with all the OS related updates before I go on to install applications, copy user files etc. Most of the OS related files (depending on need for future updates) will now be clustered nicely together, making the machine as fast as it can be.
My question is: Does Time Machine "respect my efforts" here when doing a full restore? Will it place my system files at the outer tracks where they belong, or will it ignore the original placement of the files?
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May 11, 2010
The problem is that full Os backup should be about 155 GB, but it tries to backup whole disk 1 TB. It works fine for first full backup 155 GB (I have exclude list) after that it wants to backup whole disk no matter what. No such problem with 10.6.2 just with 10.6.3. Image so we are clear. I'm new to Mac OS X.
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Apr 20, 2009
running OS X 10.5.6 on a macbook. I have been backing up using time machine to my Time Capsule, but would like to start backing up to a firewire drive. When I open up the Time Machine preferences and click change disk, nothing happens.
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Feb 17, 2012
My IMac keeps freezing on time machine finding backup disk, it selects it fine and authenticates, the ready nas pro drive works fine other than this nothing shown in logs and firmware up to date, used to work fine.
Info:
iMac, Mac OS X (10.7.3)
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Mar 3, 2012
Why is Time machine saying backup disk disconnected? Using MBP 17" Lion 10.7
Info:
MACBOOK PRO, Mac OS X (10.4.10)
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