Time Machine is Apple's built-in backup software. Time Machine was first introduced on OS 10.5 Leopard.

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57
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7answers
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How can I manually delete old backups to free space for Time Machine?

I use a Time Capsule for backup and now I want the drive to back up data from an extra Mac. But the drive is filled up with old backups from Mac 1. There simply is not enough space available for the ...
21
votes
8answers
5k views

What are the downsides to using time machine?

I hear a lot about the good aspects of using Time Machine, particularly the fact that it's so easy to use that people actually do backups! What are the downsides to using Time Machine compared to ...
18
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11answers
56k views

How to fix slow Spotlight and Time Machine after upgrading to 10.7.5?

Since updating to 10.7.5 both Spotlight and Time Machine are very slow. To index a normal system drive Spotlight calculates to need several days. As a result Time Machine takes up to an hour or more ...
17
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1answer
3k views

How to disable or delay “Time Machine hasn't backed up your computer in x days” message?

Mountain Lion has a very useful feature where it can alternate between multiple backup destinations. I use this to back up to both a network share at home and an external drive I keep offsite. Because ...
16
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3answers
5k views

Why is “Verify Backups” in the Time Machine icon menu disabled?

I learned in Upgraded to Lion: Time Machine spends a LOT of time indexing backup that if I hold down the option key and click the Time Machine icon in the menu bar, the "Back Up Now" menu item changes ...
16
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4answers
17k views

Upgraded to Lion: Time Machine spends a LOT of time indexing backup

I upgraded my MacBook Pro to Lion and one of the problems I've had is that Time Machine keeps running and running, and the fans go on. This usually seems to be in the state where it indexes the ...
15
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4answers
9k views

On Lion, what files are excluded by rule from a Time Machine backup?

In addition to whatever files I may choose to exclude, what files does the system exclude by rule or classification? It might make sense not to backup Trash or Caches, but I'm looking for a way to ...
14
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1answer
25k views

Time Machine backup to an SMB share Mavericks

I'm following the instructions and scripts detailed in this article, but it's failing on mavericks - the mounted windows drive isn't showing up in the time machine disk selection pane. Any ideas how ...
13
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3answers
7k views

How can I “clean out” my Time Machine backups if Time Machine won't backup because the disk is full?

When Time Machine tries to make a backup, it informs me that it can't because the backup disk is full. What it's mostly full of (about 700GB of 1TB) is prior backups of the same machine. Time ...
13
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5answers
32k views

How to make Time Machine backups over network without OS X server?

At our institute, we have several Macs (from 10.6 to 10.8) but not one is running a server version. In the one running 10.8 there are 4.5 TB of hard-drives from which 2 x 2 TB are raided together ...
13
votes
2answers
549 views

How can i enable Time Machine encryption on the command line?

Is is possible to enable encryption for a Time Machine target disk with a script/using the command line? Is an encrypted Time Machine disk really just the same as a normal disk, full-disk-encrypted ...
12
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7answers
2k views

Is there a bash command to check to see if Time Machine has finished backing up?

I'm writing a script that will rsycnc my Time Machine directory to a remote server using ssh. I've switched from a shell script to an AppleScript and then back to an Apple script and I don't really ...
12
votes
3answers
757 views

What is time machine backing up?

Is there a way to find out what time machine is backing up? My time machine has been running fine, but it suddenly started to back-up 20GB a few days ago when I have not changed that much since last ...
12
votes
4answers
29k views

Can I select only a few specific folders to back up with Time Machine?

Can I backup only specific folders with Time Machine? If there is not an "official" way to do this, does somebody know a trick to do so?
12
votes
3answers
6k views

Time Machine keeps asking to create new backup?

Every time a backup completes I get this message - 'Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.' I am backing up to ...
11
votes
3answers
18k views

How to wipe huge .MobileBackups folder?

I found my .MobileBackups folder quite large, it weights 160 Gi. Shouldn't the .MobileBsckups folder be wiped after the TM 'backup session'? Since I have backup done on my external drive how can I ...
11
votes
4answers
629 views

Upgrade time machine storage?

I'm going to buy 2T external HDD to replace my already full 1T HDD external. I want to keep the time machine backup data. In this case, is it just OK to copy all the time machine backup data in 1T HDD ...
11
votes
2answers
11k views

With File Vault ON are time machine backups encrypted?

I have been using time machine to back up to a wireless external drive since I got my mac. Today I used filevault to encrypt my hard drive. Will this affect how Time Machine backs up my files? Will ...
11
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2answers
1k views

Does Time Machine run backups even when no account is logged on?

Does an account has to be logged on to trigger the Time Machine backup, or does Time Machine run without any session active?
10
votes
3answers
7k views

What does Time Machine back up?

Does Time Machine backup system files, kernel files and other OS-related files? I have corrupted system drivers and files and I want to do a fresh install of OS X but I also want to back up my ...
10
votes
6answers
9k views

Time Machine backup is slow. How can I speed it up?

My time machine is backup is very slow. Connection is FireWire 800. Transfer is around 5 Mb/s or 0.5 MB/s, which seems slow. I've seen plenty of mention online of very slow Time Machine backups. What ...
9
votes
7answers
8k views

Can Time Machine back up to an external HD connected to another Mac?

Is it possible to use Time Machine to back up to an external hard drive connected to a Mac on same wifi network?
9
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3answers
1k views

Can I configure my Macbook to unmount all external drives when I close the lid?

I have a new 13" Macbook Pro running Mavericks. This computer is connected to an external USB drive which I use for my Time Machine backups and for external storage Time Machine backups occur a few ...
9
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2answers
4k views

Can Time Machine volumes be easily encrypted with FileVault 2?

Now that File Vault 2 can encrypt the entire disk and encrypt external drives, can I have a fully encrypted Time Machine volume?
9
votes
5answers
7k views

How can I avoid repeated “Time Machine must create a new backup” errors when backing up to a third party NAS?

My backups seem to go well backing up to my NAS however randomly after a few weeks I get the following error. Several users get this error intermittently however I have yet to find a solution. Any ...
9
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2answers
36k views

How big should my Time Machine backup drive be?

My 13" MacBook Pro has 500GB internal hard drive space, and I bought a 1TB external HDD to use as my Time Machine backup. I only read from many articles that the backup should be about 2 to 3 times ...
9
votes
1answer
708 views

How to force a Time Machine deep traversal?

After a few kernel panics and an accidental hot-unplugging of my Firewire Time Machine drive, I'd like to make sure that my Time Machine exactly matches my Macintosh HD, much like rsync -a. Is there ...
9
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2answers
4k views

MTMFS consuming an entire CPU core and fans running full bore with Lion

You may be aware that Lion introduced MTMFS, the Mobile Time Machine File System. I've had a couple of instances now where MTMFS has been chewing up an entire core of my dual-core (mid 2009) MacBook ...
8
votes
3answers
3k views

How to see what files were changed in TimeMachine?

I tried TimeTracker, tms and timedog but none of them works with OS X 10.6 Any suggestions?
8
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3answers
3k views

How do I eject the Time Machine backup drive automatically after each backup?

How do I set Time Machine to eject my external Time Machine backup drive automatically after each backup?
8
votes
8answers
6k views

Time Machine: “Enter Time Machine” menu command does not do anything

I have Time Machine running on an external hard drive and it reports happily that it is doing backups and I have no reason to doubt it. But when I try to look at the backups by clicking "Enter Time ...
8
votes
5answers
53k views

Remove unnecessary backups from TimeMachine to get space

I know that oldest backups are removed automatically when there is no space for new ones on TimeMachine. I use TimeCapsule also for sharing files on WiFi, so I’d like to free some space by removing of ...
8
votes
3answers
6k views

How would enabling FileVault alter my system and TM performance?

What are the pros and cons, performance-wise, of enabling and using FileVault? Is there any at all, or does it slow a computer down significantly or on the contrary speed it up? Also, what effect will ...
8
votes
3answers
22k views

Can I restore a Snow Leopard backup onto a Lion machine?

So I am a little confused and slightly worried, and I was wondering if someone could answer this. I have a Time Machine backup saved on an external HD for my Mac mini that is running the latest ...
8
votes
3answers
396 views

Enable/disable Time Machine depending on network connection type

I've not got a great Wi-Fi setup here at home and it sometimes results in failed Time Machine backups. Is there a way of specifying that Time Machine only backs up under certain circumstances - i.e. ...
8
votes
1answer
10k views

Why are some backups grey and others purple in Time Machine in Lion?

I started Time Machine for the first time in Lion (you know, to make sure everything was working properly), and I noticed something odd – on the timeline on the right side of the screen, some backups ...
8
votes
1answer
19k views

Time Machine backup .sparsebundle file inaccessible on new computer

I've been at this for a solid 6 hours now, hoping like heck someone here can help me. I've had a Time Capsule for nearly 2 years, consistently backing up two different laptops in my home using Time ...
8
votes
1answer
400 views

Will Apple's Mac Remote Wipe delete items on external disk?

With all the news about remote wipe I am wondering if having a backup on an external disk that is connected to my Mac is OK. Or if someone did a remote wipe, would they wipe that disk as well?
8
votes
2answers
2k views

How can I use my existing Time Machine drive on the network?

I have an external HD that I've been using as a time machine for my MBP. Here's what I want to do: attach the drive to my desktop machine configure time machine on my MBP to use the drive as a time ...
8
votes
2answers
3k views

Why is my Time Machine backup failing to fire at the hourly interval?

At some point after upgrading to Lion my Time Machine backups have stopped firing on the hourly interval. It works manually, but not automatically. It also works first thing in the morning when I ...
7
votes
5answers
7k views

Any way to get Time Machine to backup to Amazon Simple Storage Solution?

Just curious if it is at all possible to have Time Machine backup to the 'cloud' using Amazon Simple Storage Solution. I've setup Time Machine to work over the network before to unsupported volumes ...
7
votes
4answers
11k views

Can I simply manually delete individual Time Machine backups from the Finder or command line?

I have moved from a Mac running Snow Leopard to a new Lion machine. Since there was a lot of cruft on the old machine, I set up the new one from scratch, only copying the data over I need. I still ...
7
votes
3answers
1k views

TimeMachine with multiple disks (one at a time)

I have backed up my Mac to an external disk using TimeMachine. When I plug in a different external disk the Mac still expects to backup to the first disk. Is it possible to backup to two external ...
7
votes
3answers
7k views

Merge Time Machine Backup

Is it possible to merge to Time Machine Backups? When I look inside the sparse-bundle which Time Machine generates then I see that the folder-structure ordered by dates. So theoretically I could copy ...
7
votes
2answers
1k views

Time Machine backup format

Is the format of Time Machine's backups documented, or standard? Can I extract the files with a non-Mac system?
7
votes
3answers
662 views

Is AFP (specifically Time Machine) encrypted on the wire?

I've been hunting for the answer to this, but I have not found it. When I back up my laptop using Time Machine to a remote Time Machine server (Time Capsule, or Mac Mini with an external drive), is ...
7
votes
2answers
2k views

huge Chrome Time Machine backups

My 1TB Time Machine drive just filled up, apparently due a bug in Chrome. Since this issue has been open for a year and a half, I don't expect that Google will fix it any time soon. Can anyone offer ...
7
votes
4answers
3k views

Why is Time Machine over-stating the amount of data that needs to be backed up?

I shuffled my home directory around and moved it back to my spinning platter drive in my MacBook. Ever since, Time Machine has been running my machine hot (the fan comes on when Time Machine starts ...
7
votes
3answers
112 views

Backup software like Time Machine and CrashPlan combined?

Is there a good backup software that combines Time Machine snapshot functionality on local level with CrashPlan remote backups as well? I am currently using both, but find both unsatisfactory. My ...
7
votes
3answers
2k views

How do I make Spotlight stop indexing my Backup drive?

I have a 2TB external drive I use for Time Machine. At random intervals, it will decide to spin up and my entire UI freezes until it's finished. This is incredibly annoying. It appears that this is ...