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<blockquote data-quote="WayneF" data-source="post: 537666" data-attributes="member: 12496"><p>Maybe it should be mentioned that "backup" implies a second copy of the data, on a different disk, so that when one copy fails, we should still have the second copy (on a different disk). We should never have only one single copy of anything important, because as you mentioned, things happen, disks fail. The question is When, not If, and it is always at the worst possible time. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>If the data is really important, three copies (on three disks) is better than two copies.</p></blockquote><p></p>
[QUOTE="WayneF, post: 537666, member: 12496"] Maybe it should be mentioned that "backup" implies a second copy of the data, on a different disk, so that when one copy fails, we should still have the second copy (on a different disk). We should never have only one single copy of anything important, because as you mentioned, things happen, disks fail. The question is When, not If, and it is always at the worst possible time. :) If the data is really important, three copies (on three disks) is better than two copies. [/QUOTE]
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