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Apple Computing Products:
macOS - Operating System
Time Machine- Internal backup vs. External backup
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<blockquote data-quote="Slydude" data-source="post: 1561523" data-attributes="member: 131855"><p>In addition to chscag's excellent observations here's some additional food for thought. </p><p>Time Machine has had the ability, since OS X 10.7, to create "<a href="http://support.apple.com/kb/ht4878" target="_blank">local snapshots</a>" on a laptop's internal drive if it cannot find the external drive normally associated with Time Machine. This is not intended to be your primary backup strategy due to some significant limitations:</p><p></p><p>1. These "snapshots" are deleted if hard drive space starts getting too low. AFAIK there is no way for the user to have any control over if and when this process occurs. </p><p></p><p>2. These snapshots are useless if the drive mechanism itself fails. A backup strategy which puts primary data and the backup on the same drive is not a good long-term solution.</p></blockquote><p></p>
[QUOTE="Slydude, post: 1561523, member: 131855"] In addition to chscag's excellent observations here's some additional food for thought. Time Machine has had the ability, since OS X 10.7, to create "[URL="http://support.apple.com/kb/ht4878"]local snapshots[/URL]" on a laptop's internal drive if it cannot find the external drive normally associated with Time Machine. This is not intended to be your primary backup strategy due to some significant limitations: 1. These "snapshots" are deleted if hard drive space starts getting too low. AFAIK there is no way for the user to have any control over if and when this process occurs. 2. These snapshots are useless if the drive mechanism itself fails. A backup strategy which puts primary data and the backup on the same drive is not a good long-term solution. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Time Machine- Internal backup vs. External backup
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