Matt Connolly's Blog

my brain dumps here…

Snow Leopard Time Machine is oh so slow

I erased my time machine drive – because it couldn’t combine the old data with the new HD. No problems. Start a new backup = SLOW. here’s the console log:

29/08/09 7:15:01 PM com.apple.backupd7253 Starting standard backup
29/08/09 7:15:09 PM com.apple.backupd7253 Backing up to: /Volumes/Mattski500/Backups.backupdb
29/08/09 7:15:10 PM com.apple.backupd7253 Detected system migration from: /Volumes/Mattski500/Backups.backupdb/MattBook/2009-08-29-024306/MacBookPro
29/08/09 7:15:21 PM com.apple.backupd7253 Backup content size: 179.1 GB excluded items size: 9.5 GB for volume MacBookPro
29/08/09 7:15:21 PM com.apple.backupd7253 No pre-backup thinning needed: 204.79 GB requested (including padding), 212.36 GB available
29/08/09 8:15:11 PM com.apple.backupd7253 Copied 10.2 GB of 169.6 GB, 7804 of 1502626 items
29/08/09 9:15:11 PM com.apple.backupd7253 Copied 12.3 GB of 169.6 GB, 15888 of 1502626 items
29/08/09 10:15:12 PM com.apple.backupd7253 Copied 16.0 GB of 169.6 GB, 16700 of 1502626 items
29/08/09 11:15:12 PM com.apple.backupd7253 Copied 17.4 GB of 169.6 GB, 26237 of 1502626 items
30/08/09 12:15:12 AM com.apple.backupd7253 Copied 18.7 GB of 169.6 GB, 71519 of 1502626 items
30/08/09 1:15:13 AM com.apple.backupd7253 Copied 23.4 GB of 169.6 GB, 99607 of 1502626 items
30/08/09 2:15:14 AM com.apple.backupd7253 Copied 30.3 GB of 169.6 GB, 112358 of 1502626 items
30/08/09 3:15:14 AM com.apple.backupd7253 Copied 36.1 GB of 169.6 GB, 125770 of 1502626 items
30/08/09 4:15:15 AM com.apple.backupd7253 Copied 38.2 GB of 169.6 GB, 160636 of 1502626 items
30/08/09 5:15:16 AM com.apple.backupd7253 Copied 43.2 GB of 169.6 GB, 175095 of 1502626 items
30/08/09 6:15:17 AM com.apple.backupd7253 Copied 45.2 GB of 169.6 GB, 189965 of 1502626 items
30/08/09 7:15:17 AM com.apple.backupd7253 Copied 46.7 GB of 169.6 GB, 213777 of 1502626 items
30/08/09 8:15:18 AM com.apple.backupd7253 Copied 47.1 GB of 169.6 GB, 288288 of 1502626 items
30/08/09 9:15:18 AM com.apple.backupd7253 Copied 48.5 GB of 169.6 GB, 336746 of 1502626 items
30/08/09 10:15:19 AM com.apple.backupd7253 Copied 50.4 GB of 169.6 GB, 352332 of 1502626 items
30/08/09 11:15:20 AM com.apple.backupd7253 Copied 57.4 GB of 169.6 GB, 363639 of 1502626 items
30/08/09 12:15:20 PM com.apple.backupd7253 Copied 58.5 GB of 169.6 GB, 386480 of 1502626 items
30/08/09 1:15:21 PM com.apple.backupd7253 Copied 59.8 GB of 169.6 GB, 412356 of 1502626 items
30/08/09 2:15:22 PM com.apple.backupd7253 Copied 61.0 GB of 169.6 GB, 435309 of 1502626 items
30/08/09 3:15:23 PM com.apple.backupd7253 Copied 62.2 GB of 169.6 GB, 464146 of 1502626 items
30/08/09 4:15:23 PM com.apple.backupd7253 Copied 65.9 GB of 169.6 GB, 485498 of 1502626 items
30/08/09 5:15:23 PM com.apple.backupd7253 Copied 82.4 GB of 169.6 GB, 489045 of 1502626 items
30/08/09 6:15:25 PM com.apple.backupd7253 Copied 100.3 GB of 169.6 GB, 491058 of 1502626 items
30/08/09 7:15:26 PM com.apple.backupd7253 Copied 110.3 GB of 169.6 GB, 493059 of 1502626 items
30/08/09 8:15:26 PM com.apple.backupd7253 Copied 119.9 GB of 169.6 GB, 493059 of 1502626 items
30/08/09 9:15:27 PM com.apple.backupd7253 Copied 135.1 GB of 169.6 GB, 493059 of 1502626 items
30/08/09 10:15:28 PM com.apple.backupd7253 Copied 148.6 GB of 169.6 GB, 493059 of 1502626 items
30/08/09 11:15:28 PM com.apple.backupd7253 Copied 152.6 GB of 169.6 GB, 509372 of 1502626 items
31/08/09 12:15:29 AM com.apple.backupd7253 Copied 153.3 GB of 169.6 GB, 534726 of 1502626 items
31/08/09 1:15:29 AM com.apple.backupd7253 Copied 153.7 GB of 169.6 GB, 550336 of 1502626 items
31/08/09 2:15:29 AM com.apple.backupd7253 Copied 155.3 GB of 169.6 GB, 562214 of 1502626 items
31/08/09 3:15:30 AM com.apple.backupd7253 Copied 156.4 GB of 169.6 GB, 573554 of 1502626 items
31/08/09 4:15:30 AM com.apple.backupd7253 Copied 157.5 GB of 169.6 GB, 584987 of 1502626 items
31/08/09 5:15:31 AM com.apple.backupd7253 Copied 157.8 GB of 169.6 GB, 594213 of 1502626 items
31/08/09 5:26:04 AM com.apple.backupd7253 CoreEndianFlipData: error -4940 returned for rsrc type FREF (id 133, length 7, native = no)
31/08/09 5:26:04 AM com.apple.backupd7253 CoreEndianFlipData: error -4940 returned for rsrc type FREF (id 133, length 7, native = no)
31/08/09 5:28:49 AM com.apple.backupd7253 CoreEndianFlipData: error -4940 returned for rsrc type FREF (id 129, length 7, native = no)
31/08/09 5:28:52 AM com.apple.backupd7253 CoreEndianFlipData: error -4940 returned for rsrc type FREF (id 129, length 7, native = no)
31/08/09 6:15:32 AM com.apple.backupd7253 Copied 158.9 GB of 169.6 GB, 613142 of 1502626 items

48 hours and it’s still not finished – although close now.

My hard drive is attached by firewire, and at a respectable transfer rate of 10MB/s = (36GB/hr) this should have taken a respectable 5 hours. I know my firewire drive can in fact sustain much higher than 10MB/s, so this baffles me as to why it’s getting an average rate less than 1MB/sec. Grrrrr.

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3 responses to “Snow Leopard Time Machine is oh so slow

  1. Adam Williams 12 September, 2009 at 08:47

    I’m getting exactly the same behaviour, only worse – the transfer stops and starts, sometimes stalling for minutes (or hours) at a time before resuming at normal speed. And my whole system slows, sometimes to a complete stop and beachball, while TM is running. So far I’ve managed to backup only about 50GB of data by gradually de-excluding my 400GB of data one large directory at a time. SL is without question the worst OS X upgrade experience I’ve ever had, it’s junk.

  2. Mark 28 September, 2009 at 01:47

    I had the same problem after the SL upgrade – impossibly slow Time Machine backups.

    My fix: disconnected from the iDrive.

    This was by accident. After disconnecting everything else I disconnected the Time Capsule from the internet. Shortly thereafter the computer said that the iDrive was no longer available and asked if I’d like to disconnect from it. I did so. Immediately afterward the Time Machine backup sped up to something like 3 to 5 gig an hour.

    I had previously tried: 1. connected MacBook directly to Time Capsule 2. Renamed the computer, drives, Time Capsule, etc. to not have “odd” characters in their names (see Time Machine Support #D2) 3. made sure only one user open on machine and nothing running in background.

  3. tb 28 November, 2010 at 12:28

    really> 5G/hr? that seems unacceptable. 200G would take 40hrs. Thats 8hrs/day for 5 days! Ridiculous.

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