Backups to a disk attached to a Time Machine are…unreliable and spotty at best. 
I have a mini running as a file server and used to do Time Machine backups from 
our laptops to a FW800 drive attached to it. To get the backups not attached to 
the server; I moved the drive to my Gigabit Airport Extreme and found that Time 
Machine backups both via wireless and via ethernet from the mini fail about 
half of the time. Carbon Copy Cloner jobs to copy folders similarly fail with 
an error about the Airport Shared drive dismounting.

Extensive discussions with Mike Bombich from CCC indicated that the sharing 
circuitry in the Airport just isn't up to snuff and can't handle the t 
throughput, I ended up moving the drive back off of the Airport and returning 
it to the Mini.

In any event; if you do this you'll have to start over with the backups I 
think. Normal Time Machine backups to a shared network disk get saved to a .dmg 
file. For an Airport Shared disk or a disk shared from a computer running 
Server (I added this to the mini when I moved the drive back to it); the backup 
gets stored as a Finder readable Time Machine backup just like it would on a 
locally attached drive.

I thought this would be a brilliant solution to my problem but it just didn't 
work.


On Feb 18, 2013, at 4:37 PM, David Herren <[email protected]> wrote:

> So I'm wondering if I were to move that particular disk to the Airport 
> Extreme would Time Machine see it and continue with backups for her laptop? 
> Will she have to manually mount the drive each time (which would be hardly 
> any better than the current situation) or is there some magic once I use Time 
> machine to point to the airdisc?
> 


-----------------------------------------------
There are only three kinds of stress; your basic nuclear stress, cooking 
stress, and A$$hole stress. The key to their relationship is Jello.

neil



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