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Forum Discussion
No recognising replacement disks
Hi - I have a ReadyNas Pro Pioneer Edition which has 6 x 2Tb WD RP4 disks in. It is probably a good 7/8 years old. We moved house recently and it took my a while to re-establish my tech environm...
As an update - I just hot swapped out the disks and managed to get the NAS to acknowledge new disks - checked the logs. And there were messages on the front panel saying testing disk 6 etc - and I did notice a quick message saying Disk 6 passed !! However all that testing seems to have been completed but now RaidAr is showing disks 4 and 6 as not being present and the control panel still says the disks are dead but the disk ID is still the old disks I took out.
If you were using RAID-5 two disk failures would lead to data loss.
Have you hooked the "failed" disks up to your PC and tested them using vendor tools (e.g. SeaTools for SeaGate disks, or WD Data LifeGuard Diagnostics for WD disks).
Depending on whether the NAS has tried to add the replacement disks to the array or not (if it did then it may be too late to do anything) if it is the SATA backplane on the NAS that is having issues it may be possible (with some costs involved) for support to attempt data recovery using a new chassis (e.g. RN316/RN516) when booted into a special diagnostics mode.
If the disks really have failed then it could come down to whether a failed disk can be successfully cloned or not using a tool designed for cloning bad disks.
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