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Forum Discussion
Recovery after power supply failure
Hello forum --- I had a ReadyNAS RND4000 which experienced "the power supply problem". It had two 2TB drives, so 2TB of dual-redundant storage total. Netgear tech support promptly got me a new chas...
Again, the normal procedure would have been to remove the drive in slot 1, and replace it with the new drive while the NAS was running.
What you've done so far is insert a new drive into slot 1 with the NAS off - which I agree should have worked, but clearly it didn't.
Now that you've done all those reboots,etc, you are left with two drives in unknown states, and the original drive 1 in a known state. Let's call that one the "reference drive".
Trying the OS reinstall on the new drive (mdgm's suggestion) is reasonable, though of course if the NAS thinks the firmware is bad, the whole volume might well be corrupt. Definitely worth trying though, there is nothing to lose.
If that fails, I don't see much choice but to go back to the reference drive (presently "untouchable")
As I said, you can clone the reference drive with a program that does a physical sector-by-sector copy - giving you a "safe" copy to play with. Or you can risk the reference.
I'd start by putting the reference drive [or its clone] in the NAS by itself, as that really should boot up properly. Alternatively you can try pulling the data off with your PC, but you will need to get ext format support for windows as well as the SATA adapter. There are some freeware drivers you can try, there is also at least one commercial package that claims support for recovering data on linux drives onto Windows PCs.
What you've done so far is insert a new drive into slot 1 with the NAS off - which I agree should have worked, but clearly it didn't.
Now that you've done all those reboots,etc, you are left with two drives in unknown states, and the original drive 1 in a known state. Let's call that one the "reference drive".
Trying the OS reinstall on the new drive (mdgm's suggestion) is reasonable, though of course if the NAS thinks the firmware is bad, the whole volume might well be corrupt. Definitely worth trying though, there is nothing to lose.
If that fails, I don't see much choice but to go back to the reference drive (presently "untouchable")
As I said, you can clone the reference drive with a program that does a physical sector-by-sector copy - giving you a "safe" copy to play with. Or you can risk the reference.
I'd start by putting the reference drive [or its clone] in the NAS by itself, as that really should boot up properly. Alternatively you can try pulling the data off with your PC, but you will need to get ext format support for windows as well as the SATA adapter. There are some freeware drivers you can try, there is also at least one commercial package that claims support for recovering data on linux drives onto Windows PCs.
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