- #WD PASSPORT AND TIME MACHINE BACKUP FOR MAC HOW TO#
- #WD PASSPORT AND TIME MACHINE BACKUP FOR MAC MAC#
If you run the latest macOS (10.13 Mojave or newer), the command above won’t take effect. Sudo defaults delete /Library/Preferences/ MaxSize Limit Time Machine backup size in all versions of macOS If you want to revert to the default value (no limit), run this command:
#WD PASSPORT AND TIME MACHINE BACKUP FOR MAC MAC#
And that’s it! From now on, Time Machine on that Mac will automatically delete old backups to make sure it uses no more than 300GB. You’ll be likely prompted to enter your account’s password, so do that and press Enter again. Sudo defaults write /Library/Preferences/ MaxSize 307200 Run Terminal (you can search for it using Spotlight at the top right corner).So if you’re going to use 300GB, then the number you have is 307200 since 1GB = 1,024MB. Convert the storage limited you want into megabytes.Note that you need to log in with an administrator account. This trick is easy to implement and for sure works on macOS 10.12 (Sierra) and older versions. Limit Time Machine backup size in macOS 10.12 and earlier The more storage space, the more versions of backups you’ll get, which means the further you can go back in time. So, for example, if your MacBook has 128GB of internal storage, 300GB of backup space is generous. Generally, you want to use 150% or more of your Mac’s internal drive capacity.
#WD PASSPORT AND TIME MACHINE BACKUP FOR MAC HOW TO#
(If you don’t know how, check out this post, which also gives you some other handy Mac skills, including how to run Terminal, which you’ll need to use in this post.)Īfter that, find out the amount of storage you need for the backups. Determine the OS version and suitable backup limitīefore you can fix Time Machine’s storage, you first need to determine what version of macOS you’re running. I’ll wait until the entire backup has completed before I actually move my picture, video, and perhaps some non-essential files to my “External Drive” Partition.Creating a separate partition on your backup drive is the best way to control the amount of storage Time Machine will use. I have also tested copying and moving files to the other partition, and that works fine as well. When it asked for the drive on which I would like to create the Time Machine Backup, I selected the partition I had designated for “Time Machine Backups.” So far, it seems to be working fine, although the backup wont complete until later tonight… The Apple Partition Map might work, but I did not try it, so I can’t attest to whether or not it works.Īfter following the rest of the steps and the formatting was complete, I started a Time Machine Backup. This step seemed a bit weird because you’re not selecting “Apple Partition Map,” although it’s an Apple Computer. In Step 4: I selected “GUID Partition Table” because I saw that somewhere on my original Time Machine. I named one of them “Time Machine Backups,” and the other partition “External Drive,” but you can name them whatever you want. In Step 3: Instead of selecting 1 partition, I selected 2 partitions. I selected the “Instructions for Mountain Lion.” Some of the screens looked a little bit different, but it is fairly easy to find the selection referred to in the original answer. I found answer ID 3865 and basically followed those steps. Hi everyone! I tried the partition thing and it worked! Here are the details of what I did, just in case you have the same issue:
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