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What is the best way to compress and archive th...

I would like to upload my Backups.backupdb folder from my external hard drive to a cloud storage service. The folder contains my time machine backups and I would like to compress and archive in such a way so that I can upload and download it in the future and restore from it.

My question is, would the .tar or .dmg archive formats ruin any symlinks or any structure in the Backups.backupdb folder so that it may be corrupted? What is the best way to archive the entire folder and then be able to extract it and readily use it in the future?

I recommend using .zip. It will not corrupt the backup.

Are you aware of the aggregate size of that folder's contents, and the number of files it contains? In very broad terms, they are probably large, and millions, respectively. Compression will do little to reduce its size, considering that most larger files on a Mac (movies, pictures, music etc) are already compressed. When a TM backup drive approaches its capacity limit TM will compress backups anyway, in an effort to maximize the backup date range. That never accomplishes much either, for the same reason.

It will take a very long time (days), and you will need to move the backup off the external hard disk drive first. That will also take days. Seems like a lot of work to me providing questionable operational advantage. It would be easier, faster, simpler and probably cheaper just to purchase an additional TM backup drive and keep one of those backup devices offsite at all times.

But if you are bound and determined to do that, yes it will work.

FWIW, I agree with John. Sounds like a terrible idea.

最後更新：2017-08-26 07:54:19

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