time machine very slow with mountain lion

Juan Tandoori wrote:

I was able to fix with the classic delete everything and restart manouvre

- deleted the backup folder off the drive

- empty trash

- restart

- bingo

I didn't have to turn off spotlight indexing or anything.

As a professional computer repair technician of over 10yrs, you would be suprised how many issues can be solved with this method...

Been there, done that. Didn't fix it. Wish it did! When the Apple guy called, we did the same routine.

For some of us the backups had been working great for a long while, and then stopped.

Probably exactly same here. Deleting backup files didn't fix my problem neither.

TM had been working great, then stopped after OSX10.8..

Now I have no Backups, This needs to be fixed ASAP!

You shouldn't be without backups. After three days I decided I had to use something else and switched to Carbon Copy Cloner, which I already owned. There is also Super Duper. The interface is different, but they both will back up your Mac and do archives.

here's the new fix for TM: face north, jump up & down on your left foot while singing the star spangled banner, rub the top of your head with your right hand, and then back up your mac to 2 drives using SuperDuper.

works EVERY time!!

ps, you can skip the first 3 parts....

@mach94 Ha ha ha ha!

The dang thing is busted. There's no fix or workaround that seems to work more than once. I do not advise deleting your backups. Something is better than nothing. We just need Apple to address the problem sooner rather than later.

Apple, are you listening??

Another data point:

Client with three new iMacs, migrated from white 17" iMacs, networked via Gigabit Ethernet switch. Pair of new WD 4TB USB attached to one machine, all three use for backup. Machine to which drive is attached backs up fine, networked machines bog slow. Change IP address from DHCP to static on networked iMac, and backup speed shoots from averaging under 100KB/sec to over 10MB/sec.

and on the other machine, which already was static, changing to DHCP caused the speed to similarly improve.

I'm also having the same problem with "TM" taking very long to back-up, this is the second backup since writing 0's to my disks..

I am having the same issue. I had a backup stalled at 23 GB out of 25 GB. I stopped the backup and restarted.Currently it is in the state of "Preparing Backup:.. Time Machine backups have been very slow since I purchased my new iMac in late December 2012.

Processor 2.9 GHz Intel Core i5 with 24 GB of RAM.

External Seagate 3TB Drive - USB3

Will check in later... to see if the backup completes.

There seems to be a major issue with Time Machine.

I found the following link about Mountain Lion and performance probllems. Interesting that they're using Spotlight as an example for something to test for performance problems

http://scsc-online.com/Activity%20Monitor.html

Worth a look for those interested.

Try disabling snapshots. Worked for me.

If you want to try this, run Terminal and type: sudo tmutil disablelocal

To reactivate it type: sudo tmutil enablelocal.

My first post: https://discussions.apple.com/thread/4155485?answerId=21497171022#21497171022

Back to the roots, 10.8.3 won't fix it.

Apple, please do something!

It seems to me this problem is related to the indexing for Spotlight. I had to backup (Time Machine) 386 Gb on a new, clean HD (USB 3.0). Time Maschine estimated around 20 days. In the system-log files I found these rows after starting the backup:

mdworker: Unable to talk to lsboxd
sandboxd: ([xxxxx]) mdworker(xxxxx) deny mach-lookup com.apple.ls.boxd

So, I opened Spotlight in the System Preference Panel and added the Time Maschine-Drive to the Private Sphere to prevent indexing for Spotlight. After restarting the Time Maschine Backup the estimation time shrinked to 6 hours.

I hope to help you with that.

radio_24 wrote:

It seems to me this problem is related to the indexing for Spotlight. I had to backup (Time Machine) 386 Gb on a new, clean HD (USB 3.0). Time Maschine estimated around 20 days. In the system-log files I found these rows after starting the backup:

mdworker: Unable to talk to lsboxd
sandboxd: ([xxxxx]) mdworker(xxxxx) deny mach-lookup com.apple.ls.boxd

So, I opened Spotlight in the System Preference Panel and added the Time Maschine-Drive to the Private Sphere to prevent indexing for Spotlight. After restarting the Time Maschine Backup the estimation time shrinked to 6 hours.

I hope to help you with that.

Got the entries in both, my MacBook Pro (17-inch, Late 2007, 2.4GHz) and my iMac (27-inch, Mid 2010).

But only the MBP have this problems…

Does disabling indexing on the TM drive affect TM functionality?