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Forum Discussion
Corrupt file? Bad disk? Both?
MANY THANKS IN ADVANCE FOR ANY AND ALL ADVICE I have a problem which came to light in the last couple of days. I installed a new version of Photoshop Elements and it decided I should do a backup o...
OK... next step in the saga. Bought a replacement disk and installed it. It formatted and sync'd over night.
Everything looked stable when I woke up this a.m.. So, I tried to identify and examine the problematic file or files on the NAS. They are jpg's I have been managing with Photoshop Elements. I can guess at where the problem lies based on which files were successfully backed up the other day (just copied to a local HD) and where the backup process hung.
Looking at the suspect file in both PSe and through the file system, I could see the images. However, everything seemed to lock up when I deleted two of them. Couldn't see the NAS or navigate it for 30-60 secs. Then it came back and the files appeared to have been deleted.
THEN... and here's where it gets interesting... I decide things are dicey and I'll stop touching them for now. About 20 minutes later the NAS starts sending me alerts that Disk 1 has failed and that it is going to shut down to protect the data.
While it seems possible that the brand new disk HAS failed... it seems at least as possible that something else entirely is going on:
* Slot 1 has gone bad and any disk I put in there will appear to be corrupted
* There's some kind of corruption in the FS that the O/S can't handle
I'm leaning toward the latter because very specific files are involved... but I don't know enough about the way ReadyNAS stripes (or otherwise spreads) data about to know that it isn't just a function of what data happens to be on disk 1.
The NAS is currently shut down. Sandy is coming, so I'm not going to touch it for the moment for fear of being in the middle of something and losing power.
In the meantime, can anyone in the community or anyone at Netgear give me a hint here?
Is there any tool that could do a deep inspection of the file system?
Is it more likely a hardware problem?
Everything looked stable when I woke up this a.m.. So, I tried to identify and examine the problematic file or files on the NAS. They are jpg's I have been managing with Photoshop Elements. I can guess at where the problem lies based on which files were successfully backed up the other day (just copied to a local HD) and where the backup process hung.
Looking at the suspect file in both PSe and through the file system, I could see the images. However, everything seemed to lock up when I deleted two of them. Couldn't see the NAS or navigate it for 30-60 secs. Then it came back and the files appeared to have been deleted.
THEN... and here's where it gets interesting... I decide things are dicey and I'll stop touching them for now. About 20 minutes later the NAS starts sending me alerts that Disk 1 has failed and that it is going to shut down to protect the data.
While it seems possible that the brand new disk HAS failed... it seems at least as possible that something else entirely is going on:
* Slot 1 has gone bad and any disk I put in there will appear to be corrupted
* There's some kind of corruption in the FS that the O/S can't handle
I'm leaning toward the latter because very specific files are involved... but I don't know enough about the way ReadyNAS stripes (or otherwise spreads) data about to know that it isn't just a function of what data happens to be on disk 1.
The NAS is currently shut down. Sandy is coming, so I'm not going to touch it for the moment for fear of being in the middle of something and losing power.
In the meantime, can anyone in the community or anyone at Netgear give me a hint here?
Is there any tool that could do a deep inspection of the file system?
Is it more likely a hardware problem?
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