On Tue, Oct 6, 2020 at 4:06 AM Kenneth Emerson
<kenneth.emerson@xxxxxxxxx> wrote:
>
> It's been several years since I asked and received help on this list.
> Once again, I find myself in a bind. I have accidentally destroyed
> one of my disks in a set of 5 4-TB drives set as RAID6. When I
> rebooted 2 of the three arrays rebuilt correctly; however, the third
> (largest and most important) would not assemble. I thought, even
> though I had lost one drive, I could rebuild the array by substituting
> a new, partitioned drive but I cannot get the array to start.
> root@MythTV:/home/ken# mdadm --examine /dev/sdb4
> /dev/sdb4:
> Raid Level : raid6
> Raid Devices : 7
> Array Size : 13165485120 (12555.59 GiB 13481.46 GB)
> Used Dev Size : 5266194048 (2511.12 GiB 2696.29 GB)
> Array State : AAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
You say this is a five-disk RAID-6 array, but the disk metadata says,
in three different ways, that this is a seven-disk array. Do you have
any idea what could be causing this discrepancy?
--
Mark
