Aperture 3, Lion and Time Machine - complete back up each time

I have seen others complain about Time Machine, Lion and external disks. There have been reports of Time Machine doing a complete backup each time it is run on an external disk thats has been unmounted and then remounted. This applies to all files not just Aperture libraries.

As a test you cpuld create a library on your internal disk add a few images let time machine back it up and then modify it and see what happens.

You might also what to check tthis out in the Lion group.

regards

Note that Masters need only be backed up once (but to multiple backup locations) and that backup should happen immediately after copying to the hard drive from the camera card, before involving Aperture or any other images management app.

Time Capsule is an ongoing regular-routine backup process. Image originals instead need irregularly timed backup, once.

IMO referenced Masters make far more sense than building huge managed-Masters Libraries.

• Hard disk speed. Drives slow as they fill so making a drive more full (which managed Masters always does) will slow down drive operation.

• Database size. Larger databases are by definition more prone to "issues" than smaller databases are.

• Vaults. Larger Library means larger Vaults, and Vaults are an incremental repetitive backup process, so again larger Vaults are by definition more prone to "issues" than smaller Vaults are. One-time backup of Referenced Masters (each file small, unlike a huge managed-Masters DB) is neither incremental nor ongoing; which is by definition a more stable process.

Managed-Masters Libraries can work, but they cannot avoid the basic database physics.

HTH

-Allen Wicks

I have had some issues as well. Especially when quiting Aperture while running a Time Machine backup.

Apple states that:

"If you use Aperture, and a backup occurs while Aperture is open, Time Machine backs up the entire Aperture library rather than just the changes since the previous backup. Avoid performing backups while Aperture is open."

This is not very nice.

At least now I know to make sure not to back up when running Aperture. But this is rather incovenient and means I have to actually think about what I do when, that was not the idea of Time Machine which is supposed to operate in the back ground.

Hi. As 'The_Jules' stated the entire library is backed up as the Aperture library is changed every time you open it to make a tiny change. It may work for you to split the Aperture Library into several chunks to keep the volume down.

Another way may be to create a copy of your library (500 GB) and exclude the original Aperture library from backup. That way the Vaults you create are in the set of backup files plus the copy you created. This workflow would eliminate the issues around Time Capsule backup and Aperture open.