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Apple Computing Products:
macOS - Apps and Programs
Time Machine Disk Backup Size
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<blockquote data-quote="jkevin" data-source="post: 1208153" data-attributes="member: 400757"><p>I just ordered a 1 Tbyte external hard drive that I want to use for Time Machine backup. My internal iMac hard drive is 1 Tbyte. I only have about 100 Gbytes on the iMac right now, but I am a little worried about not having ordered a larger backup drive, because since I ordered it, I've read recommendations of 2X or 3X for the backup drive. I have not seen a minimum requirement for this on the Apple website.</p><p></p><p>Will I eventually run into problems because the external drive is not larger than my internal drive? If my internal drive volume approaches being full, will I still be able to restore from Time Machine backup disk of the same size, to at least one or two backup dates?</p><p></p><p>I understand that, as my hard drive fills up, there will be fewer and fewer backup dates available on the Time Machine backup disk, but I don't have a sense as to how much of a problem this is if the boot disk size = the Time Machine backup disk.</p><p></p><p></p><p>thanks! Kevin</p></blockquote><p></p>
[QUOTE="jkevin, post: 1208153, member: 400757"] I just ordered a 1 Tbyte external hard drive that I want to use for Time Machine backup. My internal iMac hard drive is 1 Tbyte. I only have about 100 Gbytes on the iMac right now, but I am a little worried about not having ordered a larger backup drive, because since I ordered it, I've read recommendations of 2X or 3X for the backup drive. I have not seen a minimum requirement for this on the Apple website. Will I eventually run into problems because the external drive is not larger than my internal drive? If my internal drive volume approaches being full, will I still be able to restore from Time Machine backup disk of the same size, to at least one or two backup dates? I understand that, as my hard drive fills up, there will be fewer and fewer backup dates available on the Time Machine backup disk, but I don't have a sense as to how much of a problem this is if the boot disk size = the Time Machine backup disk. thanks! Kevin [/QUOTE]
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Apple Computing Products:
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Time Machine Disk Backup Size
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