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RN104 data-0 inactive since April, still stuck after PSU fix - need assemble advice
Hi all, I have a ReadyNAS 104 (firmware 6.10.10) with a 4-bay X-RAID2 setup: two Seagate IronWolf 4TB drives and two WD Red 3TB drives. The 3TB baseline across all four disks forms a RAID5 volume...
Thanks for checking, that's a great question. I can answer it directly from the NAS's own logs: "data" carries its own RAID metadata showing a creation date of April 20, 2016, so it's a genuinely separate volume that has existed for about a decade, not something that appeared this month as a fallback naming workaround. Both "data" (931 GB, healthy after a recent resync) and "data-0" (8.17 TB, still inactive) are showing side by side in the interface right now. I haven't deleted anything called "data" or touched it in any way. Getting the full logs ready to send over to StephenB now, thank you both for the help.
Both "data" (931 GB, healthy after a recent resync) and "data-0" (8.17 TB, still inactive) are showing side by side in the interface right now
Both RAID groups are normally concatenated into a single BTRFS filesystem. It sounds like something failed with the 4x3TB group, so it no longer assembles.
If you are lucky, the group is simply out of sync. You will be able to force the re-assembly, as was done in the thread you reference. But the precise commands needed to need to be tailored to your system (particularly here, when you have multiple RAID groups in the volume).
And of course the cause in your particular case might be different.
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