Last night I upgraded OMV from version 4.x to 5.5.4-1 using the instructions and script from this post by ryecoaaron: RE: OMV 5.0 - finally out! :-)
The upgrade went smoothly but afterwards my raid is missing in action. The three drives that should make up the array are there, but the raid isn't assembled, and nothing is showing in Storage - RAID in the web interface. I've found the FAQ on this topic. It didn't help me resolve the issue. So, I'm including the requested information in the hope someone has an idea here.
/dev/sda3: LABEL="data0" UUID="2c5026ca-d497-4dc5-b570-251723e1e8b7" TYPE="ext4" PARTUUID="b8e2fdeb-03"/dev/sdc: UUID="dafdd650-f6ff-f4c0-aea7-f00edd3676ed" UUID_SUB="a325b8d7-3270-9fe7-e298-29f31c10f0d8" LABEL="mimas:mainpool" TYPE="linux_raid_member"/dev/sdd: UUID="dafdd650-f6ff-f4c0-aea7-f00edd3676ed" UUID_SUB="96d76f24-0e6e-3ea5-7085-2a46f59d6780" LABEL="mimas:mainpool" TYPE="linux_raid_member"
You can see four drives in the machine, a 60GB partitioned SSD for system and data (sda) and the three WD 2TB drives for the RAID (sdb/c/d). Drives are there, it worked before the upgrade, but now nothing. Trying to assemble the raid from the command line doesn't do anything, command just returns, no error message, no result.
I'm reasonably competent in Linux administration but not an expert on raids. Am I missing something obvious? Any help appreciated.