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Forum Discussion
Remove inactive volumes to use the disk. Disk #1,2,3,4.
Firmware 6.6.1 I had 4 x 1TB drives in my system and planned to upgrade one disk a month for four months to aceive a 4 x 4TB system. The initial swap of the first drive seemed to go well but aft...
As you were replacing the first drive and it failed, you now need to boot with the four original drives first. If the RAID still doesn't start with all the original drive, then you won't be able to rebuild a new drive. Your best chance is to contact NETGEAR Support.
Operationaly and statistically this doesn't make any sense. The drives stay active all the time with backups and streaming media so I'm not sure why doing a disk upgrade would cause abnormal stress. But even if that is the case and drive D suddenly died, I replaced Drive A with the original fully functional drive which should recover the system. Also, the NAS is on a power conditioning UPS so power failure was not a cause.
Based on the MANY threads on this same topic, I don't think this is the result of a double drive failure. I think there is a firmware or hardware issue that is making the single most important feature of a RAID 5 NAS unreliable.
Even if I could figure out how to pay Netgear for support on this, I don't have any confidence this same thing won't happen next time so I'm not sure it's worth the investment.
Thank you for your assitance though. It was greatly appreciated.
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