How Time Machine Backups Work When using iCloud
Summary
TLDRThis video from MacMost.com explains the interaction between Time Machine backups and iCloud Drive's 'Optimize Mac Storage' feature. When 'Optimize Mac Storage' is turned off, all files are stored locally and on Apple's server, ensuring complete Time Machine backups. With it turned on, less frequently accessed files may be off-loaded, leading to incomplete backups for those files. However, the video argues that most users are still well-protected, as Time Machine backs up recently accessed and changed files, and iCloud Drive retains all files. It also covers recovery strategies for different scenarios, including catastrophes and accidental deletions.
Takeaways
- 📦 iCloud Drive has two modes: 'Optimize Mac Storage' Off or On, affecting how files are stored locally and on Apple's servers.
- 🔄 With 'Optimize Mac Storage' turned Off, all files in the Documents folder are stored both locally and on Apple's servers.
- 📁 When 'Optimize Mac Storage' is On, files not recently accessed may be off-loaded from the local drive but remain on Apple's servers.
- 💾 Time Machine backs up everything locally, including files in iCloud Drive, when 'Optimize Mac Storage' is Off.
- 🚫 Time Machine can only back up files that are fully present locally when 'Optimize Mac Storage' is On; off-loaded files without content cannot be backed up.
- 🆕 Creating new files with Time Machine and 'Optimize Mac Storage' On will back up the files as long as they are present on the Mac.
- 🔄 Time Machine only backs up files when there is a change; unmodified off-loaded files are not backed up repeatedly.
- 🔄 If a file is updated, it will be downloaded, become recently accessed, and subsequently backed up by Time Machine.
- 🗑️ Accidentally deleting a file that has not been accessed since starting Time Machine backup with 'Optimize Mac Storage' On may result in unrecoverable data loss.
- 🛑 In case of data loss, restoring from Time Machine and signing into iCloud can recover most files, but not those not accessed since the backup started.
- 💡 For important files not recently accessed, manually downloading them ensures they are present locally and can be backed up by Time Machine.
Q & A
What is the main topic of the video script?
-The main topic of the video script is the interaction between Time Machine backups and iCloud Drive, particularly focusing on the 'Optimize Mac Storage' feature.
What are the two modes of iCloud Drive mentioned in the script?
-The two modes of iCloud Drive mentioned are 'Off' and 'On' for the 'Optimize Mac Storage' feature in System Preferences.
What happens to files stored in iCloud Drive when 'Optimize Mac Storage' is turned Off?
-When 'Optimize Mac Storage' is turned Off, 100% of the files in your Documents folder in iCloud Drive are stored both locally on your Mac and on Apple's server.
How does Time Machine handle backups when 'Optimize Mac Storage' is Off?
-Time Machine backs up everything locally, including all files in your User Folder that are outside of iCloud Drive and all files within iCloud Drive, since they are all present on the local Mac.
What visual indication is there for files that have been off-loaded from the local Mac due to 'Optimize Mac Storage' being turned On?
-Files that have been off-loaded appear to be present but are actually empty, and they have a Cloud icon with an arrow pointing down, indicating that the content is missing and needs to be downloaded.
Why would Time Machine not be able to back up certain files when 'Optimize Mac Storage' is turned On?
-Time Machine cannot back up certain files when 'Optimize Mac Storage' is turned On because those files might have been off-loaded from the local Mac and only their empty envelopes remain, with the actual content missing.
What is the recommended action if you need a 100% local backup of all your files?
-To ensure a 100% local backup, you should have a large enough local drive to hold all your data and turn Off the 'Optimize Mac Storage' feature.
How does Time Machine handle new files created with 'Optimize Mac Storage' turned On?
-Time Machine backs up new files as they are created and present on the local Mac. Even if these files are off-loaded later, they are still backed up initially.
What is the importance of Time Machine's backup mechanism in relation to file changes?
-Time Machine backs up files only when there is a change. It does not back up the same unmodified file repeatedly.
What is the potential risk of losing a file if Time Machine and 'Optimize Mac Storage' are used together?
-The potential risk is that if a file is created, off-loaded, and then deleted before it is accessed again and backed up by Time Machine, it could be permanently lost.
How can you ensure that important files are backed up by Time Machine even when using 'Optimize Mac Storage'?
-You can manually download important files to ensure they are present locally, or access them to trigger an on-demand download, making them available for Time Machine to back up.
What are the three main scenarios when you would need to use your Time Machine backup?
-The three main scenarios are: a catastrophe where your Mac is lost or damaged, the need to revert to an old version of a file, and accidental deletion of a file.
How does the script suggest recovering files in the case of a catastrophe while using iCloud Drive and Time Machine?
-In a catastrophe, you would restore local files with Time Machine and then sign into iCloud to access all files that were on iCloud Drive, including those not backed up by Time Machine.
What is the script's perspective on the necessity of having a large local drive to avoid using 'Optimize Mac Storage'?
-The script suggests that while having a large local drive ensures a 100% backup, most users are covered most of the time with 'Optimize Mac Storage' turned On, and manual intervention can be used for critical files.
Outlines
💾 Understanding iCloud Drive and Time Machine Backups
In this paragraph, Gary from MacMost.com explains the relationship between Time Machine backups and iCloud Drive. He discusses the two modes of iCloud Drive: 'Optimize Mac Storage' turned off or on. When 'Optimize Mac Storage' is off, all files are stored both locally on the Mac and on Apple's servers. When turned on, files not recently accessed may be off-loaded from the local drive, appearing to be there but lacking content until downloaded. Time Machine, when used, backs up everything locally, including files within and outside of iCloud Drive. However, if 'Optimize Mac Storage' is on, Time Machine can only back up files that are fully present on the local drive.
🔄 Impact of Optimize Mac Storage on Time Machine Backups
This section delves into how Time Machine handles backups when 'Optimize Mac Storage' is enabled. Gary explains that Time Machine will only back up files that are currently present on the local drive. Files that have been off-loaded and not accessed recently will not be backed up because they appear to be there but are essentially empty until the content is downloaded. He also discusses the implications of this setup, such as the inability to recover a deleted file that was never locally present after the Time Machine backup started. However, Gary points out that in most cases, users are still getting nearly complete backups, even with 'Optimize Mac Storage' turned on.
🛡️ Recovering Files with Time Machine and iCloud Drive
The final paragraph focuses on the recovery of files using Time Machine and iCloud Drive. Gary outlines scenarios where Time Machine can effectively restore files, including when a file has been updated or recently accessed, ensuring it's present for backup. He addresses the rare case where a file that was never accessed since the Time Machine backup started gets deleted and cannot be recovered, as it was never locally present to be backed up. Gary suggests proactive measures to ensure important files are downloaded and backed up if they haven't been accessed recently. He concludes by emphasizing that despite the potential for incomplete backups with 'Optimize Mac Storage' on, most users are still well-protected and can recover their files in the majority of situations.
Mindmap
Keywords
💡Time Machine
💡iCloud Drive
💡Optimize Mac Storage
💡Backup
💡Apple's server
💡Local storage
💡File offloading
💡Cloud icon with an arrow
💡On-demand downloading
💡Recovery
💡Catastrophe
Highlights
Gary from MacMost explains the impact of using iCloud Drive with Time Machine backup.
There are two modes for iCloud Drive: Optimize Mac Storage being Off or On.
With Optimize Mac Storage Off, all files in iCloud Drive are stored locally and on Apple's server.
Time Machine backs up everything locally, including files in iCloud Drive, when Optimize Mac Storage is Off.
Optimize Mac Storage On may off-load files not recently accessed, retaining only a shell with a cloud icon.
Files off-loaded with Optimize Mac Storage On cannot be backed up by Time Machine if their content is missing.
To ensure a complete local backup, a sufficiently large local drive and having Optimize Mac Storage Off is recommended.
Most users may not need a 100% local backup, as Time Machine still backs up most files even with Optimize Mac Storage On.
Time Machine only backs up files that have changed, not the same file repeatedly.
Files created while Time Machine is active are backed up, even if they are later off-loaded.
Updated files are re-backup by Time Machine once downloaded for editing.
If Time Machine was not active when files were off-loaded, those files cannot be backed up and are lost if deleted.
Three main scenarios for needing a Time Machine backup: catastrophe, reverting file versions, and file recovery after deletion.
In a catastrophe, Time Machine and iCloud combined can restore all files, even with Optimize Mac Storage used.
Most apps offer a revert to previous version feature, reducing reliance on Time Machine for file version recovery.
Files accessed recently are backed up by Time Machine, allowing for recovery even if later off-loaded.
The only uncovered scenario is the loss of a file not accessed since starting the current Time Machine backup.
Manually downloading important files ensures they are backed up by Time Machine, even with Optimize Mac Storage On.
The video concludes that using Time Machine with iCloud Drive and Optimize Mac Storage is mostly safe, but not absolutely certain for 100% backup.
Transcripts
Hi, this is Gary with MacMost.com. Let me explain
what happens when you try to do a Time Machine backup and you're using iCloud Drive.
MacMost is brought to you thanks to a great group of more than 1000 supporters.
Go to MacMost.com/patreon. There you can read more about the Patreon Campaign.
Join us and get exclusive content and course discounts.
Now when you're using iCloud Drive the important thing to keep in mind is that there are two
different modes. In System Preferences you'll find these in your Apple ID under iCloud Drive and it's
called Optimize Mac Storage. You can either have this Off or On. Now let's look at what
happens when you have it Off. Let's dive down into iCloud Drive, into the Documents folder,
let's say you have Desktop and Documents turned On and you've created a folder called Some Folder. In
there you have five files. These are on your Mac. You look on your Mac in your Documents folder,
Some Folder there's files A through E. Since these are in iCloud Drive these are also going
to be on Apple's server. 100% of the files on your Mac in your Documents folder in iCloud Drive
are going to be on your Mac and a 100% of them are also going to be on Apple's server. When you have
Optimize Mac Storage turned Off everything is always going to be in both locations. Or
it's easier to think of it as one location that you can access from different places.
If you go to Backup with Time Machine, Time Machine is going to backup everything locally
including anything you've got in your User Folder that's outside of iCloud Drive. Also anything
that is in iCloud Drive. All these files are there locally on your Mac.
All the data is there. Time Machine does its backup. It backs everything up. You
have 100% backup. All your stuff if you are using Optimize Mac Storage turned Off.
Now what if you turn it On. If you have Optimize Mac Storage turned On you may see something like
this. Only some of your files are available on your Mac. It appears all the files are
there. They are all going to be on your list. But some files, files you haven't accessed recently
are going to be off-loaded. They are going to appear to be there but they are kind of like
envelopes that are empty. There's nothing inside. The content of the files is missing.
You could recognize these very easily because they have a little Cloud icon with an
arrow pointing down in them. This icon allows you to click it and download those files so they are
there. Or you can simply open up the file and, on demand, you're going to be able to download
them from iCloud Drive before the file opens up. Note that 100% of your files are always
on Apple servers. Optimize Mac Storage is for optimizing your local drive. The whole point of
this feature is if you have a small drive locally but plenty of space on iCloud Drive. So if you
have a terabyte of stuff you can have that all on Apple servers but maybe you only have a 512 GB
hard drive so only some of the stuff, like in this case File A and C, are fully present with
all the content. Files B, D, E are just hallow files. Nothing in them. The content is missing.
In this case when Time Machine backs up you can only properly backup the files that are completed
there. File A and C will be backed up. Files B, D, E can't be backed up. The contents are missing.
So if you need a 100% local backup, all your files there all the time no exceptions, there
are two things that you need to do. First is your Drive needs to be big enough to hold everything.
If you have a terabyte of data you need to have a terabyte, probably 2 terabytes really,
of drive space on your local Mac. Then step 2 is make sure Optimize Mac Storage is turned Off.
This ensures that all your files are local
as well as on the server at all times and Time Machine can back everything up.
But, do you actually really need that? I argue that most people don't because even with Optimize
Mac Storage turned On and not all your files local all the time you still are getting just
about everything backed up, probably more than you even think. So let's look at the situation
where you have Optimize Mac Storage turned On. Some of your files on your drive, only the files
currently present, are backed up. So in this case Files A and C will be backed up. B,D,E will not.
Or are they? Well here's the thing. They kind of still are. Let me look at two situations. One in
which you create a completely new set of files. So you start a new project. You created a new
folder for it called Some Folder. You've got your Time Machine backup going. You've got Optimize
Mac Storage turned On. You create your first file. It's a new file. It's present on your Mac.
It's going to get backed up. It may in the future get Off-loaded and not there. But that's way in
the future. Right now Time Machine does its hourly backup and gets File A. File A is backed up.
You can create four more files. They are all new files. They are all present on your Mac and they
are all going to be backed up. It is going to be awhile before those are Off-loaded because you
recently used these files. Optimize Mac Storage keeps around recently accessed files because they
are the ones you most likely will need again. So everything here now is fine and Backed Up.
Now let's say some time goes by. You accessed A and C pretty often. But it turns out B, D,
and E you haven't accessed since you originally created them. There's no need to backup B, D,
and E again anyway because it backed it up the first time. You haven't changed it since.
Even if Time Machine had access to these files it still wouldn't back them up
because it already has a backup of the file as it exists now. Time Machine backs up when
there is change. It doesn't backup the same file over and over again if it hasn't been changed.
So, in this case all five files are backed up and they are just fine even though now files B,
D, and E haven't been accessed in awhile. They are not present locally. They have been optimized. You
still have the backup because they were created and then backed up by Time Machine originally.
You're are all good in this situation. Let's say file D is updated. It's downloaded. It
has to be downloaded for you to update it. Once it is downloaded it has been recently accessed.
It's going to hang around for awhile. Time Machine is going to back it up and Time Machine
will get this new version of File D there. So it's all good. Everything is still backed up.
From this point on anything you do, anytime you change a file, it's going to be present locally
for Time Machine to back it up. So you don't have to have Optimize Mac Storage turned Off.
Time Machine is going to be able to handle the situation just fine. You'll have
the same backup you would have if Optimize Mac Storage was Off.
Now let's look at a different situation. Let's look at a situation where some folder was created
and you weren't using Time Machine. You've got Optimize Mac Storage On. So eventually,
after awhile, files B, D, and E are off-loaded because you haven't accessed them in awhile. Files
A and C are present because you have accessed them recently. Now, you start your Time Machine backup.
Time Machine could only backup A and C. It can't access B, D, and E because they are not present
locally. It can't back them up. Now you delete file D by accident. There's no way to recover it.
Time Machine never actually saw the file local. It was optimized and off-loaded and only present on
Apple server from the moment Time Machine started backing things up. Now that you have deleted it,
it's gone. You can't get it back. Keep in mind by deleting it I mean it was dragged
to the Trash and then Trash was emptied. It's a little hard to do as it should be. So hopefully
this situation doesn't come up too often. If it does come up keep in mind it has to be
with a file that you haven't accessed recently, since you actually started backing up with
Time Machine. So this is a situation where by using Optimize Mac Storage and Time Machine you
failed to backup a file and then you loose it. But how often does this actually happen?
There are really three main times when you need your Time Machine backup.
The first is a Catastrophe. Your Mac is stolen. It's broken. A meteor hits your house. Whatever.
It's gone and you need to get all your files back. Another situation is you
need to revert to an old version of a file. You are writing your autobiography and a few weeks
ago you made some changes and now you want to revert back to before you made those changes.
The third reason is that you had a file and you accidentally deleted
it. A couple of weeks later you realize your mistake and now you want it back.
So if you're using iCloud Drive Optimize Mac Storage and you've been backing up with Time
Machine how can you recover in these situations. Well, in a catastrophe it turns out you're fine.
You restore your local files with Time Machine. This gives you things back that say were in your
Movies folder that weren't part of iCloud Drive. It also restores everything in iCloud Drive that
Time Machine could get ahold of to backup. Then you sign into iCloud. Now you have access to
everything that was on iCloud Drive including the file that Time Machine never got to see and never
got to backup. You're back to everything restored. Just restoring from Time Machine, signing into
iCloud and you're back. The fact that you used Optimize Mac Storage didn't hurt you at all.
Now what about the situation where you revert to an old version of a file.
Well chances are you don't need Time Machine at all to revert. Most modern apps, like Pages,
Numbers, and Keynote or even things like Microsoft Word have a function where you can revert
to a previous version of the file. So you can just revert to that previous version inside the app.
No need to access your backup. But let's say it's a file that doesn't have that. It's a graphics
file or something with an app that doesn't have a Revert To function. Well, if you change the file
then that means the file had to be downloaded on your Mac, it had to be present there, which means
the Time Machine got a chance to back it up, doing its regular hourly backups. Which means it is
going to be there on Time Machine. You're covered. You can get this old version of the file back.
How about if you delete a file? Well, if you delete a file and it's something you've accessed
recently then it would have been present at some point on your local drive. Time Machine would have
backed it up and now you can recover it using Time Machine. But there's that last situation where
it's a file that doesn't appear to be important. You haven't accessed it since you started your
Time Machine backup that you're using right now and it's just now present there in Time Machine.
It's gone. This is the situation that's not covered. So you have to ask yourself is it worth
it to get a Mac with a really big hard drive so you don't use Optimize and have everything present
all the time. So you have a 100% backup to avoid this one situation or can you use the Optimize
feature knowing that you're covered most of the time for most things that you use a backup for.
Keep in mind that if you know that there's a file that's important to you, like for instance
you are writing your autobiography but you haven't touched the file in a year and you've
started a new Time Machine backup since then you could always go to that file and click the
little cloud icon to download it. That will get it backed up. Or just open up any file
and do anything with it and it will get backed up. You can even select a whole folder
and say I want all this stuff. This is important tax information or whatever. Download that now
and then it will be local for at least awhile and get backed up. So I hope this explains all
the different aspects of using Time Machine backups along with the iCloud Drive Optimize
Mac Storage option. As you can see you're pretty much covered even if you're using the Optimize
Mac Storage function. But if you want to be absolutely sure that you're covered all the time
it's just a matter of having a big enough hard drive and not using the Optimize feature.
I hope you found this useful. Thanks for watching.
Browse More Related Video
Prüfungsvorbereitung Backup Beispiel
Microsoft 365 for Mac: What's Different?
Turn THIS on if you use iCloud!
The Relationship between Microsoft Teams and SharePoint: Understanding the Integration
Computer Skills Course: File Management, Part 2
5 helpful tips for using your iPhone and Mac together | Apple Support
5.0 / 5 (0 votes)