Re: Raid array empty after restart

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On 2020-05-24 13:37, Patrick O'Callaghan wrote:

sdd                               8:48   0 931.5G  0 disk
└─md127                           9:127  0 931.4G  0 raid1
   └─md127p1                     259:0    0 931.4G  0 part
sde                               8:64   0 931.5G  0 disk
└─md127                           9:127  0 931.4G  0 raid1
   └─md127p1                     259:0    0 931.4G  0 part

# mdadm --detail /dev/md127p1
/dev/md127p1:
            Version : 1.2
      Creation Time : Wed May 20 16:34:58 2020
         Raid Level : raid1
         Array Size : 976628736 (931.39 GiB 1000.07 GB)
      Used Dev Size : 976630464 (931.39 GiB 1000.07 GB)
       Raid Devices : 2
      Total Devices : 2
        Persistence : Superblock is persistent
There is something strange here.
You have created md127 as a RAID1 of sdd and sde.
Then you have md127p1, so have you partitioned your RAID?
And then you are asking details for md127p1 (which could be your filesystem),
while your RAID is instead md127.

This is an unusual configuration.
Generally you partition the disks: sdd1 sde1, then create a RAID of of them: md127,
then you format and mount md127.

You may have messed up something: maybe you have formatted both md127 and md127p1?

Regards.

--
   Roberto Ragusa    mail at robertoragusa.it
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