1209 Views 7 Replies Latest reply: Aug 17, 2009 5:29 PM by Pondini
Unfortunately, it's almost impossible to predict.
It depends on how much data you have (more the number of items than the total size) and how fast and how good your connection is.
Plus, it's considerably longer for an incremental backup, as TM apparently compares what's on your system to the backups, to figure out what's changed and needs to be backed-up.
And, of course, if you have other traffic on that connection, both will be degraded somewhat.
That's all for the "deep traversal" itself, before any actual copying begins (the "preparing" phase). The actual copying and transmitting, will speed up and slow down during the backup, as well.
Message was edited by: Pondini
well, for 100GB over a gigabit ethernet connection to an airport extreme base station into a WD mybook USB drive, it took... 16 hours.
Wow! I'm sure you didn't expect it to be fast, but that's . . . awfully slow.
At least it completed successfully.
yeah. kind of a pain. imagine if i'd done it over wifi!
i have the same question. im sitting at 17 hours and it's still preparing...
Should I be able to detect any cpu activity during the "deep traverse"?
Yes. Use the +*Activity Monitor+* app, in your Applications/Utilities folder.
You're looking for the backupd process. It may not be using a lot of CPU, depending on whether this is your first backup or a subsequent one, but some.
If it's using zero CPU for long, it's probably hung (and after 17 hours, that's a good bet). Cancel it, then do all the things specified in item #D2 of the Time Machine - Troubleshooting *User Tip* at the top of this forum. If that doesn't help, post the TM Buddy messages here, along with the details of your setup.