It does a few hidden things which might not be apparent to the average user, I would suspect it something like the following.
1) Connect to timemachine, get meta data about last backup 2) Tidy up old backups and merge some older ones together as it says it does the following; - Hourly backups for past 24 hours - Daily backups for the past month - Weekly backups for all previous months 3) Using meta data from 1, find all files added/updated/delete since then 4) Calculate size of backup about to be taken 5) Does space exist on timemachine, if not delete oldest backup 6) Copy updates to timemachine 7) Update meta data for timemachine The bit you see regarding backup up x of y I would see as step 6, the others hidden and not make much sense to the average user. John On 22 November 2013 11:31, <[email protected]> wrote: > Hi all, > > Is it just me? > > It seems as though my iMac spends a lot of its time either preparing to > backup, backing up or cleaning up. The time every hour when it's not > running seems to be getting smaller and smaller. > > Is this usual? I'm not downloading huge videos every day and when I look > it usually says something like "Backing up 4MB of 28MB" - sometimes it does > get a lot larger, but not often. > > The backup drive is attached to the Airport Extreme which naturally slows > things down but I was wondering if anyone here has any ideas as to whether > there is anything I can do about the seemingly endless disk writing. > > Stephen > > > "The world as we have created it is a process of our thinking. It cannot > be changed without changing our thinking." ~ Albert Einstein > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send an email to [email protected]. > Visit this group at http://groups.google.com/group/smug. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Sussex Mac User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. Visit this group at http://groups.google.com/group/smug. For more options, visit https://groups.google.com/groups/opt_out.
