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Questions tagged [backup]

The process or product of preserving data for the purpose of recovery from a data loss event.

216
votes
8answers
668k views

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 ...
81
votes
6answers
160k views

Fastest and safest way to copy massive data from one external drive to another

I need to be able to copy about 2TB of data from an external drive (single USB external disk) to a another external drive (Drobo attached via Firewire). Finder is not an option. If it hits any ...
49
votes
9answers
56k views

Time Machine ridiculously slow after El Capitan upgrade

I recently updated to El Capitan, and told Time Machine to backup. It got stuck on Preparing Backup for hours, so I stopped it, deleted the InProgress file, rebooted and tried again. After ~30 mins, ...
48
votes
3answers
67k views

How to wipe huge .MobileBackups folder?

I found my .MobileBackups folder quite large, it weighs 160 GiB. Shouldn't the .MobileBackups folder be wiped after the Time Machine 'backup session'? Since I have backup done on my external drive ...
44
votes
2answers
239k 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 ...
31
votes
7answers
29k views

The backup on Server is already in use

I have OS X Mavericks with the Server software installed. The server machine is an iMac with a Drobo attached via USB. I use the Server Time Machine service to create a backup server on the network, ...
29
votes
8answers
13k 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 ...
25
votes
5answers
313k views

iCloud has space but iCloud Backup says that I don't have enough to complete a backup

I use 120 MB of iCloud storage space for iCloud Backup of my iPad & iPhone. There is still 4.8 GB free from 5 GB, but I have a notification in iPad's backup window that I'm lacking space to back ...
23
votes
3answers
77k views

Recover certain files from Time machine from previous Mac

I just got my new Macbook Pro Retina and update it to Yosemite. I now want to recover/get some files from my Time Machine backup of my previous Macbook but don't want to migrate my whole Time machine ...
22
votes
1answer
88k views

Is it safe to delete the contents of Library/Application Support/MobileSync/Backup if using iCloud?

My /Users/{username}/Library/Application Support/MobileSync/Backup is 5GB and I'd really like to reclaim that space if I can. I back up my iPhone, iPad, and iPod Touch to iCloud, so is there any ...
22
votes
3answers
74k 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 ...
22
votes
4answers
15k 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 ...
21
votes
4answers
20k 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 ...
21
votes
2answers
34k 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 ...
21
votes
7answers
192k views

Transferring PDFs from iBooks to your laptop/desktop

There are a lot of tutorials on how to load PDFs into iBooks, but none say how to backup or transfer them back to your computer. I understand there is a button to email them, but I probably have ...
20
votes
3answers
14k 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 ...
20
votes
4answers
100k views
+50

After deleting an app, can you (much) later reinstall it and restore its data from iCloud?

I have several games that, combined, use up a pretty good chunk of my iPhone's flash. I haven't played some of them for a while, and would like to remove them. However, at least before iCloud, ...
19
votes
8answers
32k 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?
19
votes
2answers
116k views

Sharing iCloud storage between family members

Is there a way to share iCloud storage between family members? I included my wife's iPhone into Family sharing, but I would like to have one storage bucket (20G) that would allow us both Apple ID ...
17
votes
7answers
42k views

How can I get back a system file after deleting it from my Mac?

I've deleted a system file from my Mac and need to get it back. System files can include: hidden files in the root of / - especially unix files in /private /System files /Library files /...
17
votes
10answers
1k views

Do you have a backup policy that covers the Worst Case Scenario?

I've a lot of photos and videos of my children. I feel that losing those pictures would be a real pain for me and my family. In the past I use to make, from time to time, a DVD with all my digital ...
17
votes
8answers
101k views

How to resolve “iTunes could not back up the iPhone because the backup was corrupt”?

When I try to sync my iPhone with my computer, I get the following message: iTunes could not back up the iPhone "iPhone Name" because the backup was corrupt or not compatible with the iPhone. ...
17
votes
3answers
21k views

Does Time Machine restore whole system?

I've never used Time Machine before and I pretty much know how backups work but I'm wondering if my system will work out of the box once restored from Time Machine backup? I mean I have tons of stuff ...
17
votes
3answers
13k views

How secure are iCloud backups?

Are iCloud backups encrypted, both when transmitted and stored? Is it possible for someone at Apple to access any backup made to the data enter? I have heard that when apps have been pulled from the ...
17
votes
5answers
63k views

How to change the location where iTunes stores backups of iPhones?

When I sync my iPhone 4 with my iTunes, the latter starts to make a backup before doing the actual sync. This backup often takes a lot of time to make, which is very annoying. What is even worse (...
17
votes
3answers
16k 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 ...
16
votes
7answers
4k 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 ...
16
votes
6answers
7k 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 ...
16
votes
4answers
56k views

Backup iPhone to external drive on Mac

What is the best technique for changing the backup location of one's iPhone to an external drive. It would seem that with small SSD's (256GB) and very large iOS devices (128GB) that Apple would easily ...
15
votes
2answers
21k views

What folders can be safely excluded from Time Machine backup?

I want to know list of folders that can be safely excluded from Time Machine backups while ensuring that full restore can get me a same machine running immediately. The reason why I want to do this ...
15
votes
8answers
154k 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 ...
13
votes
4answers
6k views

How do I copy a Mac volume using cp?

I have researched this for hours. In Single User Mode, I used: cp -Rpvn /* /Volumes/MyBackup My external USB is mounted on /Volumes/MyBackup The issue however is that after 24hrs it still has not ...
13
votes
2answers
16k views

Does OS X continue to copy files when my laptop goes to sleep?

I am currently backing up a large amount of files to a portable hard drive on my Macbook Pro running High Sierra. It should take a few hours, and generally in around 15 minutes my laptop screen goes ...
13
votes
3answers
119k views

How do I restore my iPhone from an iCloud backup?

I just installed iOS 5 on my iPhone 4 several days ago, and I backed it up to iCloud. After performing a sync with my PC, it deleted a bunch of apps. I'd like to restore these from the iCloud backup. ...
13
votes
3answers
40k views

How do I get rid of my encrypted iPhone backups to start from scratch?

Is there a way I can delete all my encrypted iPhone backups for which I forgot the password, so that I can start backing up from fresh? At the moment I'm stuck in this loop (below) which I can't ...
13
votes
5answers
65k views

How can I reliably backup an external drive to another external drive?

I have got an external hard drive (A) that contains my iTunes & Aperture libraries. It's not always plugged to my MacBook. What's the best way to make a backup of it on another external hard ...
12
votes
5answers
28k views

How can I back up a complete IMAP account?

I have a huge IMAP email account that contains a lot of subfolders and a lot of messages (dating back to 2005). Is there a simple way to back up these folders and messages so I can delete them from ...
12
votes
2answers
25k views

If I upgrade to iOS 5, can I restore a 4.2 backup?

I have an iPhone 4 with iOS 4.2 backed up to one of my PCs which I no longer use. If I upgrade to iOS 5, will I lose the opportunity to restore from one of these old backups? Would I be able to ...
12
votes
3answers
130k views

iCloud storage full: “Not Enough Storage”. Backups exceed 5GB

Just like everyone else, I get the notification that my iCloud is full and no backup can be made. iOS gives me the suggestion to upgrade my storage on my iCloud account. Because I only want to store ...
12
votes
3answers
4k 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?
12
votes
3answers
2k 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 ...
12
votes
3answers
23k views

Time Machine error creating the backup folder on a spacious hard drive

I have upgraded recently to Mavericks, and am setting up Time Machine on this system for the first time (it wasn't set up with the earlier OS, Mountain Lion.) Time Machine successfully backs up once ...
12
votes
7answers
19k views

Time Machine stuck on “Preparing Backup”

I have a MacBook Pro from 2009. It came with OS X 10.6 (Snow Leopard) but I upgraded to 10.8 (Mountain Lion). A few days ago, I tried to backup my files on an external hard drive, like I have ...
11
votes
3answers
134k views

How do I use time machine to restore my entire computer, rather than a file?

Is is possible? What is the easiest (most hassle-free) way of accomplishing this?
11
votes
5answers
22k views

Using rsync to backup

I currently back up the contents of an external hard drive A by (1) deleting everything in the destination external hard drive B and (2) copying everything from A to B (in Finder). The external hard ...
11
votes
6answers
77k views

Restoring selected files from time machine backup of a different mac

Here's the situation so far: 20" Alum iMac 2007 HDD has died (3 days after I got a new Macbook Pro - coincidence, or suicide?) It had a time machine backup on a regular external drive I have ...
11
votes
5answers
151k views

How can I move photos from iPhone to my local disk?

This has me stumped. I have nearly 4GB of photos and videos on my phone, and I want to put them into my computer's pictures folder. I have opened Windows Explorer and found the photos in the weird ...
11
votes
1answer
94 views

Is it possible to have 2 different backup systems for different external hard drives?

1) I want to plug in an external hard drive and then download all of the photographs that I take in RAW format on my Canon 7D camera onto this external hard drive, and then backup these photos onto a ...
11
votes
2answers
69k views

Is it possible to use Time Machine with iCloud?

I have a MacBook Pro (early 2011) with a 320 GB hard disk, and I have a 200 GB storage plan on iCloud. The problem is that I cannot simply copy the Applications folder to iCloud Drive and restore it ...
11
votes
3answers
3k views

iOS 7: iCloud backup fails silently

Like so many other people, I have an iOS 7 device that fails to backup to iCloud. Automatic backups don't occur, and I periodically get the "your iPhone has not been backed up in n weeks" message. ...