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Forum Discussion
Two disks failed in array, will Acronis clone work?
Have a ReadyNas Pro 6 with a 6 disk X-RAID2 array. Disks 2 and 3 started reporting reallocated sectors a few days apart, and shortly after started reporting uncorrectable errors. I tried to replac...
NEVER insert a drive into a running NAS unless you want it to treat it as new. If you want to try recovery then you need to power down and then insert.
You can clone with any cloning software that supports sector by sector copies (and is not looking at the file system). The main difference is how well they handle bad sectors (since of course you have them).
The issue with cloning is that some of the sectors will have missing/garbled data, and there is no way for RAID to detect and repair that damage.
The best solution is to find the 10 TB of space, and backup. After that I'd delete and copy back the data, just to make sure the array is fully consistent. Probably simplest to rebuild the full NAS, but deleting/recreating each share would also work.
Have you been running periodic maintenance checks (Scrubs and file system integrity)? That's a useful feature in 4.2.x firmware, and possibly could have found the errors sooner.
You can clone with any cloning software that supports sector by sector copies (and is not looking at the file system). The main difference is how well they handle bad sectors (since of course you have them).
The issue with cloning is that some of the sectors will have missing/garbled data, and there is no way for RAID to detect and repair that damage.
The best solution is to find the 10 TB of space, and backup. After that I'd delete and copy back the data, just to make sure the array is fully consistent. Probably simplest to rebuild the full NAS, but deleting/recreating each share would also work.
Have you been running periodic maintenance checks (Scrubs and file system integrity)? That's a useful feature in 4.2.x firmware, and possibly could have found the errors sooner.
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