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RN 516 - Remove inactive volumes to use the disk #4 – ghost volume
My device is running latest firmware 6.8.1 and has one raid 5 set of 6x6tb disk as data. Now the volume page shows disk 4 as a additional raid5 named data-1. On the message line appears “Remove inactive volumes to use the disk #4”. There is no error on the log tab, or the hardware display. After a reboot it looks again normal (no data-1) but after a while I have the same situation again.
What can I do to solve it without risking my data?
Yes, SDD (drive 4) is not a part ot MD126 (the second layer in your volume). Either the expansion did not go as it should when you added drive 4, or the NAS has "lost" that partition. But now it looks like it has found the lost partition and declared it to be a separate incomplete volume.
You may want to wait for mdgm-ntgr or one of the other Netgear mods to concur, but it looks to me like that's exactly why they changed the OS to be more aggressive in looking for lost volumes and that deleting it will do the trick. Whether it will then re-sync and add the lost space into the volume is another thing. You may need to remove the drive, delete the partitions, and let it start from there. But that would be far less work that a factory default and restore.
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Your data is already at risk; I recommend backing it up.
This particular issue is complex (has multiple root causes), so Netgear Support is in the best position to troubleshoot it. If you are the original purchaser, and purchased between 1 June 2014 and 31 May 2016 then you have free lifetime chat support for your NAS at my.netgear.com.
If you purchased new, but not within that timeframe, then you can still use paid support. Per-incident support is cheapers.
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