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Suspect Disk scrubbing followed by fsck TRASHES filesystem. Now what?
I'm starting to suspect that the issue described in the community post titled "Disk scrubbing followed by fsck TRASHES filesystem?" just happened to me. https://community.netgear.com/t5/ReadyNAS-...
- I have destriped the raid to an image using two separate softwares and run five recovery software on the images. Two attempts have resulted in an almost complete file system, but every file llarger than a a few KB has random bits of other files inserted, periodically. In video, this looked like static or missing audio segments. In pictures it looks like partial pictures.
There was no rescuing it: basically the netgear box thrashed my file system during a routine raid scrub+fsck.
The rebuild and restore from backup went smoothly, albeit my array has been down for over two weeks.
Based on the thread linked above, this seems like it may have been a known defect a few versions back and either was not fixed or was reintroduced.
I guess my only option for some sort of closure on this, to do something proactive to minimize the chance of this happening again, is to go with another vendor and hope they make fewer defects in their products.
Thanks for your efforts trying to make this right.
I have destriped the raid to an image using two separate softwares and run five recovery software on the images. Two attempts have resulted in an almost complete file system, but every file llarger than a a few KB has random bits of other files inserted, periodically. In video, this looked like static or missing audio segments. In pictures it looks like partial pictures.
There was no rescuing it: basically the netgear box thrashed my file system during a routine raid scrub+fsck.
The rebuild and restore from backup went smoothly, albeit my array has been down for over two weeks.
Based on the thread linked above, this seems like it may have been a known defect a few versions back and either was not fixed or was reintroduced.
I guess my only option for some sort of closure on this, to do something proactive to minimize the chance of this happening again, is to go with another vendor and hope they make fewer defects in their products.
Thanks for your efforts trying to make this right.
There was no rescuing it: basically the netgear box thrashed my file system during a routine raid scrub+fsck.
The rebuild and restore from backup went smoothly, albeit my array has been down for over two weeks.
Based on the thread linked above, this seems like it may have been a known defect a few versions back and either was not fixed or was reintroduced.
I guess my only option for some sort of closure on this, to do something proactive to minimize the chance of this happening again, is to go with another vendor and hope they make fewer defects in their products.
Thanks for your efforts trying to make this right.
The thread you linked to was a very old thread with several versions older firmware than what you are running, so would be about a different issue.
Before doing the offline volume scan you were advised to backup your data. Running a filesystem repair on any filesystem can be dangerous so it is advisable to update your regular backup first.
The online filesystem check works off a snapshot so would have no impact on your data.
Disk scrubbing makes sure that your disks are in sync with each other and running scrubbing once in a while (e.g. every 2-3 months) is advisable, but it does not replace the need for backups.
Whichever NAS you use from whichever brand you should not store important data on just the one device.
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