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Why have a Time Capsule if you have iCloud acco...

Why have a Time Capsule if you have an iCloud account?

Because is a different stuff! With TM you can backup the entire system as example. have a look here: macOS Sierra: Back up with Time Machine

And more than one back up is highly recommended.

Why have a Time Capsule if you have an iCloud account?

Let's say that the hard drive fails on your Mac and you must replace the drive, or your Mac has another issue. If you have been backing up using Time Machine to a Time Capsule, you can completely restore your Mac in short order so that it looks exactly the way that it did when it failed.

iCloud only backs up a small fraction of the files on your Mac, so you are stuck if you do not have a complete backup of your Mac. For example, iCloud does not even back up your Documents, or your Applications, or your System files.

Users who care about the data on their Mac have at least one complete backup of their Macs. Smart users have more than one backup.

A few months ago my wife got a new Mac to replace her 8 year old iMac. She plugged the drive containing her Time Machine backup of the old iMac into the new iMac, then started the new Mac for the first time. After a couple of setup instructions the new Mac prompted to restore the Time Machine backup. An hour later the new Mac had everything that had been on the old Mac, in the same places. You cannot do this with iCloud or any other cloud backup system; they back up files, but not system settings or apps. And you would have to manually choose what to restore and wait by your computer to do this. And all of the data must travel over the Internet, at whatever your connection speed is. So it could take days to restore everything.

Another reason to use Time Machine is the fact that it keeps multiple versions going back in time, so if you realize that you need the version of a file from an hour ago, days ago, or a week ago, or a year ago you can recover it. Even if you deleted the file, it will still be in the TM backup. If you delete a file that is synced to iCloud it will also be deleted from iCloud.

Cloud backups are useful as an alternate in case your TM drive fails or your computer and its TM drives are stolen. For example, I also use the cloud backup service Livedrive, which also backs up my computer hourly and keeps the most recent 30 versions of each file. For $160 a year I get unlimited storage for backups of my 3 computers. And I also have 2 Time Machine drives; they alternate every other hour, so if one of them fails I still have a backup that is no more than 2 hours old. And on top of that both of the backup drives each contain 2 physical drives that are RAID 1 configured, which means they mirror each other. So essentially I have 4 backups in Time Machine plus the Livedrive backup.

最後更新：2017-09-05 23:29:18

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