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time machine drive size?
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Forum Regular
Join Date: Dec 2002
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Since the back up created by time machine holds redundant files over time, does that mean the size of the drive (or partition) used needs to be larger than the start up drive? If so, how much larger would be recommended? Thanks in advance...Peter
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Moderator  Join Date: May 2001
Location: Hilbert space
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No, the drive has to be at least as large the amount of data you want to back up plus X. You should use a separate harddrive for your backups, though.
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I don't suffer from insanity, I enjoy every minute of it.
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Forum Regular
Join Date: Dec 2002
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Hi- Yes, it will be a separate drive, a partition on a 750GB seagate I'm adding. My question is whether the partition can be the same size as the original for use as a time machine back up or does it have to be bigger to store older versions of files? thanks...Peter
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Addicted to MacNN
Join Date: Aug 2004
Location: FFM
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If it's the same size as the volume you are backing up and that volume is becoming full, Time Machine obviously can not keep old revisions of files. I would suggest to have a Time Machine volume that is at least 50% larger than the volume you are backing up.
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Mac Elite
Join Date: Aug 2007
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Originally Posted by TETENAL 
If it's the same size as the volume you are backing up and that volume is becoming full, Time Machine obviously can not keep old revisions of files. I would suggest to have a Time Machine volume that is at least 50% larger than the volume you are backing up.
That, or have Time Machine set to NOT backup the /Library or /System folders to save space.
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Forum Regular
Join Date: Dec 2002
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Offline
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Originally Posted by TETENAL
If it's the same size as the volume you are backing up and that volume is becoming full, Time Machine obviously can not keep old revisions of files. I would suggest to have a Time Machine volume that is at least 50% larger than the volume you are backing up.
kind of what I thought, thanks a lot....Peter
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