What to delete from my hard drive

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I have Time Machine and it keeps telling me that i do'nt have enough space to back up whats on my computer. I haven't put anything particularly big on there recently so I'm confused. But maybe I need to just get rid of stuff on my hard drive. But what can I delete? I don't understand what half these applications and folders are for. Or do you think there's another problem? I have a 2006 iMac with Safari OS x 10.6.8
 

chscag

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If you don't know what to delete, my advice is not to delete anything from your Mac. The solution is to buy and use a larger external hard drive that will accommodate all your data to be backed up by Time Machine.
 

pigoo3

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What size is your backup drive...and how full (number of gigs used) is the drive you are backing up?

Time Machine is supposed to do a complete backup the first time...then just do incremental periodic backups of what changed since the last backup. Eventually the backup drive gets full (full of multiple Time Machine backups)...and then Time Machine is supposed to overwrite the oldest backup with the newest backup (a FIFO approach).

- Nick
 
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Thanks Nick. My capacity is 319.94 and I only have 76.15 available. when I go into Time Machine it is only showing Oct. 2014. I can't click on the folders older than that (they're dark and there's no writing on them anyway). I wonder if Time Machine isn't working properly?
 
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Again. Are you using an external hard drive for Time Machine backups? That is the best advice. If not what happens when (and not if) the drive fails? And the free 20% space is the absolute minimum before you gets slow downs and beach balls.
 

pigoo3

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My capacity is 319.94 and I only have 76.15 available. when I go into Time Machine it is only showing Oct. 2014.

Is this the size (gigs used & gigs free) of your computers internal HD...or the specs on the external hard drive for the Time Machine backups? I needed to know both.

If we are only talking about one hard drive for everything...and if you are storing your Time Machine backups on the same hard drive as your day to day HD (everything is on your computers internal HD)...we will need to talk about this!;)

- Nick
 

vansmith

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and then Time Machine is supposed to overwrite the oldest backup with the newest backup (a FIFO approach).
I've noticed that sometimes TM doesn't do this (for whatever reason). I've had it complain of a lack of space and not do anything about it. I wonder if this is happening here.
 

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