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I have Debian8 with Open Media Vault on it.
I'm tring to build a RAID1 with two Seagate Ironwolf 6TB. I can build the RAID1, create an ext4 partition on it and use it without a problem.
The problem is that every time that I reboot the RAID disappear.
If I look with gparted both hard drives has no partion, like I never created an ext4 partion on them, but if I look with testdisk I can find every file. Also if I try to rebuild the RAID the files will still be there, so I'm not losing my data.
After the reboot I tried to see if I could find md0 but this is the result:
mdadm --detail --scan
ARRAY /dev/md127 metadata=1.2 name=NAS:Data UUID=ed696fd2:96feba4f:ab44fb72:b800fb01
No md0, only 127! I also tried with this command:
root@Delibird:~# mdadm -Es
ARRAY /dev/md/Data metadata=1.2 UUID=ed696fd2:96feba4f:ab44fb72:b800fb01 name=NAS:Data
and still no result.
This is the conf file (/etc/mdadm/mdadm.conf)
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
# Note, if no DEVICE line is present, then "DEVICE partitions" is assumed.
# To avoid the auto-assembly of RAID devices a pattern that CAN'T match is
# used if no RAID devices are configured.
DEVICE partitions
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# definitions of existing MD arrays
ARRAY /dev/md127 metadata=1.2 name=NAS:Data UUID=ed696fd2:96feba4f:ab44fb72:b800fb01
ARRAY /dev/md0 metadata=1.2 name=Delibird:Telefilm UUID=4de2d990:37fa60cf:b34e2c9e:63b4d0ca
I tried to update the conf for the boot with
update-initramfs -u
But even after that, the RAID1 is still missing after the reboot :(
How should I do? I really don't know how to solve my problem!
You need to create a boot script that runs the Mdadm commands and mounts the drives. Put the script in /etc/init.d/ to run on startup – Eric F – 2017-11-02T19:11:45.333
which mdaadm command ? – Ansem – 2017-11-02T21:38:25.560
Put mdadm --assemble --scan in the file as well as the mounting commands – Eric F – 2017-11-03T12:29:26.473