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Which is better, a Toyota Camry or a Whirlpool Front-loading washer?
RAID Mirroring and Backup are two different things entirely. RAID 1 gives you almost up to the instant protection against a single drive failure, but it give you absolutely no history or roll-back ability. If you delete or overwrite a file, or have a crash that damages the file structure, it is deleted/damaged on the mirror at the same time as the primary drive.
TimeMachine is all about rolling back to a previous state (indeed, multiple previous states in history). If you have a primary drive failure, you are likely to lose changes since the last write to the TM drive.
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Spring Cleaning Sale email for flyer..sweet prices across the board • Many Retina's, Airs, new iMacs all on sale - great • OWC at par Trades welcome
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