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  #1  
Old 10-05-2009, 01:02 AM
diamondsw diamondsw is offline
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Problems scheduling multiple backups

My SuperDuper backups are on disk images on a network volume (Time Capsule). I schedule three backups for 4AM - my boot drive, one set of files from my data drive, and a second set of files from my data drive. Sadly, the backups almost never all succeed when scheduled - but running any of them manually works like a charm.
  1. Oddly, when I select "Options" > "On Successful Completion", "Eject <volname>" is grayed out - this is regardless of scheduling, but odd.
  2. For a while, destination volumes would have problems mounting when scheduled. When run manually, it worked fine. Disk Utility showed nothing out of the ordinary on any volumes. After a while this just went away - which always makes me a bit nervous.
  3. When the backups complete, the disk images are unmounted but the Time Capsule volume is not. I'm pretty sure previous versions unmounted both.
  4. I'm getting frequent problems trying to run multiple scheduled backups - only one tends to run, and the window is stuck on a strange mishmash of the results from the previous backup (green bars, steps completed, OK button) and the settings for the next backup in the popups at the top of the window. Not sure what is happening, but it fails to backup most nights. Yet on some nights, it works. Frustrating.

I'm pretty sure I deleted all of my scheduled backups after 2.6.1, but I'm trying again tonight, and setting all scripts to "Quit SuperDuper" when done - since once all of them complete that's the desired behavior.
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  #2  
Old 10-05-2009, 08:03 AM
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dnanian dnanian is offline
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1. This is because image files are always mounted, copied to and then ejected.

2. I don't really know why this would be, but do delete/recreate the schedules.

3. No, the network drive wouldn't have ever been unmounted.

4. Again, let's try deleting and recreating the schedules...
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  #3  
Old 10-06-2009, 10:22 AM
diamondsw diamondsw is offline
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Deleted all of the schedules; no change. However, here's what I'm seeing in the log for the failed backups:

Code:
| 04:00:36 AM | Info | PHASE: 1. Prepare to Copy Files
| 04:00:36 AM | Info | ...ACTION: Preparing Tera
| 04:00:36 AM | Info | ......COMMAND => Verifying the integrity of volinfo.database
| 04:00:36 AM | Info |       volinfo.database OK
| 04:00:36 AM | Info | ......COMMAND => Enabling permissions on Tera
| 04:00:36 AM | Info |       Refreshing Disk Arbitration ...
| 04:00:48 AM | Info | ......COMMAND => Verifying that permissions are enabled for Tera
| 04:00:48 AM | Info |       Permissions on '/Volumes/Tera' are enabled.
| 04:00:48 AM | Info | ...ACTION: Mounting Video
| 04:00:48 AM | Info | ......COMMAND => Preparing Video
| 04:00:48 AM | Info | ......COMMAND => Setting ownership and access modes for '/Volumes/Delorean/Personal/Video.sparseimage'
| 04:00:48 AM | Error | chmod: /Volumes/Delorean/Personal/Video.sparseimage: Permission denied
What makes no sense is that the permissions are set for everyone to have full access to the image - and it works fine when manually run.

Code:
jochs@mini ~ $ ls -al /Volumes/Delorean/Personal/
total 577078476
drwxrwxrwx   5 jochs  jochs           264 Sep 17 01:51 ./
drwx------@ 21 jochs  jochs           670 Sep  3 03:37 ../
-rwxrwxrwx@  1 jochs  jochs          6148 Jan  9  2009 .DS_Store*
-rwxrwxrwx@  1 jochs  jochs  261865046016 Oct  5 04:04 Dante.sparseimage*
-rwxrwxrwx@  1 jochs  jochs  329063297024 Oct  5 04:06 Video.sparseimage*
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Old 10-06-2009, 10:39 AM
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dnanian dnanian is offline
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We're simply trying to set the permissions for the file properly with

Code:
sudo -P -u your-uid chmod 0775 path-to-image
I don't know why it would deny us permission to do so... but that's what the error is saying...
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Old 10-06-2009, 02:43 PM
diamondsw diamondsw is offline
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Quote:
Originally Posted by dnanian View Post
We're simply trying to set the permissions for the file properly with

Code:
sudo -P -u your-uid chmod 0775 path-to-image
I don't know why it would deny us permission to do so... but that's what the error is saying...
Figured it out - if Time Machine is backing up to the same volume, then it locks down the permissions on the mount point - can't even "ls /Volumes/Delorean" (yes, I named the drive Delorean). This also explains why it would fail sometimes, but not every time. Ever since Snow Leopard, Time Machine has been backing up every hour - and if it happens to be running when SD starts, it clobbers my SuperDuper backups.

I just verified this by running a SD backup - no problems. Then unmounted Delorean, started a Time Machine backup, and tried SD. Bam - failed.
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Old 10-06-2009, 04:36 PM
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That's... weird. I don't know why they would change your own image at all.
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