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I'm curious if full-disk encryption works with Time Machine. Since upgrading to Leopard, Time Machine is one of my favorite features, and I know FileVault user
by makecheck 18y ago
I'm curious if full-disk encryption works with Time Machine. Since upgrading to Leopard, Time Machine is one of my favorite features, and I know FileVault users can't back up home directory files on Mac OS X.
In theory, there's no reason a file couldn't be backed up from one fully-encrypted disk to another fully-encrypted disk, as long as the copy can be authenticated.
But Time Machine likes to treat its target disk as "special"; I'm not sure if this is simply due to the presence of "/Backup.db", or if the entire disk needs special formatting.
Of course, if PGP is targeting the enterprise, businesses may already back up their Macs in some other way and not care if Time Machine works.
- tlrobinson 18y agoI think the problem is that FileVault (and presumably PGP) stores your home directory as one large file, so every time any change is made to any file it has to backup the entire home directory. I have the same problem with Parallels images... any time a change is made on Windows filesystem in Parallels the entire image needs to be backed up (several GB). I ended up excluding the Parallels images from Time Machine.