Keep in mind, if you have a lot of data the first backup CAN take a long time. It needs to grab information on every single file and directory. Then, it can start to backup.
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Time Machine???
- Thread starter fjs08
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yeah i get this warning and cant get rid of it
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.
I've found Time Machine to be the (only) one thing that has worked properly upon my Leopard upgrade. The first backup understandably takes a long long time, as it effectively has to copy your entire hard drive onto the external. Firewire is only 400MB/s download, USB 480MB/s (but less at a sustained rate).
In future, only files that have changed will be backed up. And after a week, several of the week-old hourly backups will be deleted so as to only have one backup per day, which is further reduced once a month has been completed.
Space will not be an issue. You just need a hard drive partition with the size of your hard drive, plus a little bit more to cover everything else. You'll be surprised how little changes on your computer with time.
In future, only files that have changed will be backed up. And after a week, several of the week-old hourly backups will be deleted so as to only have one backup per day, which is further reduced once a month has been completed.
Space will not be an issue. You just need a hard drive partition with the size of your hard drive, plus a little bit more to cover everything else. You'll be surprised how little changes on your computer with time.
My first back up has been made. Now where do we go from here. I see that there are scheduled back ups to be made. Does it create a problem if you have to shut down the computer during a back up. It's scheduled to start about 30 minutes before I leave for the office. Does it hurt to just slide the bar in TM to the OFF position, then turn it back on when I get home?? I don't want to foul this up now that I've got my first back up made.
Thanks.
Frank
Thanks.
Frank
Time Machine isn't that stupid - if you shutdown, the backup will simply not complete and you won't have a backup for the time since the last backup took place.
It consolidates your backups after set periods. As explained here,
"Time Machine saves the hourly backups for the past 24 hours, daily backups for the past month, and weekly backups for everything older than a month."
I'm a little confused about time machine as well.
As I excluded my aperture database there is only 19gb of data on my MBP so I set off time machine and once finished I wanted to make sure all my data was backed up so I checked the size of the backup folder and it was just short of 16gb but the number of files were very similar to the MBP drive so job done I thought.
Its now done 4 backups and I've checked the size of each folder and in order they are 15.7gb, 8.6gb, 15.7gb & 15.7gb so thats 55.7gb in total so why is the time machine drive only showing 16.2gb used?
James the answer lies in some voodoo differences in the fancy black magic way that Time Machine works. There was a good writeup on Ars Technica if memory serves but the jist is this... when you browse TM it looks like your entire system was backed up for each time point. Like you noted, if you 'Get Info' for one of these time points it should be on par with the amount of stuff on your machine at the time of the backup. The sizes ARE NOT additive however. If the same file is on your machine unchanged for multiple timepoints it will only be copied to your TimeMachine partition once. Even though it looks like the file is in each of the timepoint subfolders it's not really taking up extra space for each identical copy.