Author Topic: DRU restore failure  (Read 523 times)

Offline qwkteg125

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DRU restore failure
« on: December 14, 2018, 09:21:24 pm »
Here's the message I get:

WARN: The restore process has failed! Nothing has been restored...
An exception has occurred!
See logs for full message.
Error message: Unable to create directory C:\FlexRAID-Managed-Pool\class1_0\{d9c88434-6e68-49e7-be1d-2407e4763ddd}\Users\MEDIA\Software\*some file directory blah blah blah*\Versions\1.0\Resources

I have the full log if needed as well.

Background: Upgraded OS drive from 128gb ssd to 500gb ssd. Apparently, at the same time one of my DRU drives bites the dust. I purchased a new hdd and initialized it through windows and then ran a restore to the new drive using the original drive letter. Then I get the error message and here we are. I hadn't added any new files to the pool or anything of that nature. Any help appreciated thanks!

Offline qwkteg125

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Re: DRU restore failure
« Reply #1 on: December 16, 2018, 10:27:15 pm »
Hmmm looks like I invested my money into an abandoned product...

Offline Skirge01

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Re: DRU restore failure
« Reply #2 on: December 19, 2018, 10:54:55 am »
I can't help you fix your actual issue, except to say that you can likely rebuild the array from scratch (i.e. delete array, create new array, add drives, etc) and be on your way again.

Regarding the state of FlexRAID, you could be right, but this has happened before.  The dev disappears for a while (months) every so often, but--so far--he has always returned and development picks right back up.  As much as I wish this didn't happen, if my system keeps working, I'm staying put.  Once I know he's MIA, I just ensure I don't make any major changes to my system and always have a system backup at the ready.  As long as my license doesn't need to be reactivated, I *should* be safe.  Sadly, this is what happens when there's only one person running the entire project.

Offline qwkteg125

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Re: DRU restore failure
« Reply #3 on: December 19, 2018, 01:57:08 pm »
Thanks for the reply! So currently, after I tried the restore I can see the files that are supposed to be on the drive, but the files do not work. You say if I attempt a scratch rebuild I will be able to recover the missing files? Or do you mean if I do a scratch rebuild I will be able to have a working array again, but without the files from the drive that died?

Yeah I was initially drawn to Flexraid because of the fact that if something did go wrong with a drive, you would at worst only lose the data on that one drive and not the whole array. I've had flexraid running without any problems since 2012 and loved the storage pooling feature, but of course this is the first time a drive has failed on me. I previously had an antiquated raid5 setup on my computer that I wasn't able to rebuild after one drive died so I lost everything. I was hoping not to lose any data this time but I guess some loss is better than all?

Offline Skirge01

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Re: DRU restore failure
« Reply #4 on: January 25, 2019, 11:33:31 am »
Somehow, I missed that you replied to this until today.  Sorry about that.  You've probably resolved this for yourself at this point, but, you were correct with your 2nd guess on what I was trying to say (i.e. "working array again, but without the files from the drive that died").

Did the drive actually die, meaning you can't access anything on it at this point?  My guess is going to be that's the case because the restored files were damaged.  What this likely means is that the drive was dying for a while and was writing bad data to itself.  In turn, that data was then captured and written to the snapshots.  Sadly, as a result, the only thing you had left to restore was more bad data.

In order to prevent this situation in the future, I would urge you to install HD Sentinel.  Even if you've moved away from RAID-F, this software monitors your drive's health and will alert you when one is failing.  I have it installed on every computer I own, including laptops.  The "strict" setting for servers (not the default) is how I have my media server configured and I have NEVER lost any data since installing the software.  This is simply because I'm notified of a pending failure LONG before the drive is going to stop working.  In fact, I have never been forced to restore from the PPU because the drive was always still functional and I could just copy the data directly off it.

This software saved my bacon countless times in the WD 1TB "green" drive era, when failure rates were through the roof.

Offline adridolf

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Re: DRU restore failure
« Reply #5 on: January 28, 2019, 06:31:18 am »
Hi, I had a similar problem once, but for t-Raid, not for RAID-F. However, the central problem was a changed system disk (as in your case), which messed up the configuration, since the references to the old disk where still in the configuration and FlexRaid was not capable to deal with that. I had to wipe all remaining pieces of information regarding this disk from the config and then was able to do my restore. Note that in my case, however, the changed disk was NOT part of the data covered by FlexRaid, so I could mess around with it.