Posts Related to Use of Drobo FS in my Personal Context

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03/03/2011 03:37 AM

Thanks for response

Regarding your comments, I also have been checking-out all the forums and other sources of information. Some of it requires a fine filter I have to say but there are some useful and interesting points as you suggest.

- quitting the finder - Yes I have tried that.

- delete the "in progress" folder - Yes as per earlier suggestion from your support staff I have tried that.

- time machine switched to OFF before launching interface (i.e.: before entering time machine) - Yes I have tried that and followed the full process suggested on the Drobo support site whereby all discs are disconnected etc.

- unmount all other external volumes that are not participating in Time Machine - Yes I have been doing that on a regular basis as well as checking what Spotlight is doing and so on.

Update - As per earlier post the new Time Machine backup is proceeding. Still approximately 1TB to back up.

My Power Mac is now in the loft without monitor or keyboard along with two Sonnet arrays and the Drobo. The Power mac and the Drobo are connected through a 1Gb switch which is connected to the 1Gb port on my Modem/router. I connect to the Power Mac through screen sharing from my Laptop as required. That is working quite well for me. My monitor and keyboard are attached to the laptop. I disconnect from the Power Mac whenever I don't require to be connected - which is most of the time. The Power Mac and the Drobo can thus get on with the backup process in 'relative peace'.

Best wishes


03/03/2011 03:37 PM

At this point Drobo Support requested that I note if subsequent backups on this newly created share take as long. An updated diagnostics file was also requested


03/04/2011 11:59 AM

An 'interested' response from Drobo Support was received to say that that was indeed a large number of items.


03/06/2011 03:39 AM

Dear Support

The Time Machine backup appears to have reached the end of the data transfer stage. As before, however, it doesn't take that final step where it completes the backup. It looks as thought it has stalled. The transfer appears to have completed sometime during the night (Saturday night through to Sunday morning). It appears that all files/data has been transferred but the Time Machine preferences display still suggests that it is backing up.

I have been here before. What do I do now? Do I wait? Well the answer is yes. How long do I wait? I suppose there is no answer to that because I get no dynamic or active feedback from the Time Machine software nor the Drobo Dashboard about what is going on. Come to that I can get no feedback from either product about what is happening, what has happened, when it has happened, whyit has happened, or what can be done. I believe that this is the biggest issue for anyone using the Time Machine/Drobo combo. The user is completely in the dark when something goes wrong - if it is going wrong. The user does not know what is happening.

I will leave the system in its stalled (?) state until it resolves the issues it appears to have or until I lose patience and I try one of the other approaches which I have tried previously. Stop the backup and start it from where it is. OR Restart Finder and see what happens. OR .....

Possibly I will just have to accept that it does not work for my PowerMac with the system I am running and with the combination of associated hardware, data and backup needs. Two months of this daily issue is perhaps where it has to stop.

Unless of course Drobo support has a solution.

Best wishes


03/07/2011 03:14 AM

Nothing appears to have happened since the last comment submitted. The Time Machine preferences indicate that it is backing up 1.7TB of 1.7TB which I take to mean that it has backed up all data but it has not yet gracefully competed the process. I assume that any action I take will thus terminate the process and so I will not have that 1.7TB in the backup. I have relaunched Finder to no effect.

Any ideas will be most gratefully received. Will the Drobo diagnostics file throw up any information?

Best wishes


03/07/2011 02:04 PM

After more than a week the backup failed with Time Machine Error "Unable to complete backup. An error occurred while copying files to the backup volume."

The system log looks as though it may have a story to tell. Unfortunately my technical expertise does not extend to understanding the story.

It may or may not be relevant but the data being backed up is the same set of files, folders, discs and content which is backed up on my Sonnet array using Time Machine - with no errors and no issues ever.

Time Machine has gone straight in to another backup without any action on my part. i will leave it over night to see what happens.


03/07/2011 02:19 PM

I just had a look at the Console System Log file and noticed the following:

Mar 7 09:03:38 terry-allans-power-mac-g5-2 /System/Library/CoreServices/backupd[3447]: Backup destination alias resolved to path: /Volumes/Terry_Power_Mac_G5
Mar 7 09:03:40 terry-allans-power-mac-g5-2 /System/Library/CoreServices/backupd[3447]: Disk image /Volumes/Terry_Power_Mac_G5/Terry Allan’s Power Mac G5 (2)_000d937a1e58.sparsebundle mounted at: /Volumes/Backup of Terry Allan’s Power Mac G5 (2)
Mar 7 21:17:56 terry-allans-power-mac-g5-2 /System/Library/CoreServices/backupd[3447]: Indexing a file failed. Returned -12 for: /Volumes/R3 Video 1/Originals/Tape2.iMovieProject, /Volumes/Backup of Terry Allan’s Power Mac G5 (2)/Backups.backupdb/Terry Allan’s Power Mac G5 (2)/2011-02-28-221526.inProgress/8382EC1A-20BD-45F7-A5E8-C6CD94BA81E4/R3 Video 1/Originals/Tape2.iMovieProject

This suggests to me that the file /Originals/Tape2 was an issue. I have thus excluded it for the backup which is just starting.


03/07/2011 04:15 PM

Response from Drobo Support expressed surprise this file would cause the backup to hang as Time Machine and Drobo require admin permissions in order to run. It was suggested that I try dragging and dropping this file to see if there is an issue, or see if another backup utility particularly SuperDuper.

Support wanted to know I I got on.


03/08/2011 09:48 AM

Thanks for comments.

Dragging and dropping the offending file caused no issues. It copied to another drive without any difficulty.

The restarted backup process also caused issues for the computer. The Sonnet arrays were no longer available to other computers on the network and so I had to restart the computer.

At the same time I thought that it would be sensible to change ethernet ports on the switch for both the Drobo and the computer.

I also did a restart of the Drobo - ejected all discs etc and started it up with no discs in place. I'm just waiting until the Drobo is in a totally 'happy state' again before deciding what to do next.

Any comments advice will be most gratefully received.

Best wishes


03/08/2011 10:56 AM and 03/08/2011 11.02 AM

Drobo Support suggested that I try the following:

- Go to System Preferences>Spotlight>Privacy
- Drag the Drobo Time Machine Share into Spotlight
- Now try Time Machine again
(also, make sure this file is closed before beginning the backup).