RAID 1 Mirror Showing as clean, degraded but no RAID name given

This setup has been running for probably 5 years w/o an issue. Today I'm suddenly seeing this. I cannot use the recover dialog as it appears a valid RAID name is needed?

• When I went to list the disks, one of them was indeed not listed, when I scanned, the drive reappeared in the list.

• It appears that the RAID configuration believes one of the drives has failed though.
• Is there a good way to verify the drive health with OMV?

• Is it possible the SATA controller (I'm using a separate board for this) somehow lost connection briefly to the drive or possibly the drive lost power enough to do something to the array?
• I only noticed this as the data was not presenting in my shares. (I figured the RAID1 configuration would still present the data even in a degraded state???).
• I humbly submit myself here, I'm no where as competent as the rest of you folks.
• it could be the case I just need to present a new drive to the device so i can rebuild the RAID.

thank you very much!

attempting to gather some more information based on post-requirement I may not be able to provide all

Drives: 2 1TB Samsung 860 EVOs 1TB (Man where does 5 years go!?)

To my knowledge, nothing has happened. I've not power cycled nor updated for a long long time. the OMV logs I can't pinpoint when the issue occurred. My Plex media was working as recent as of a week ago so sometime between now and then is the best I can place this.

I guess if this isn't worth it I may just get rid of the RAID and copy the data from the healthy drive (presuming the other drive is indeed toast) to a new SSD and forget the RAID 1 and just use RSync to backup from one SSD to another. Hope I got all the info you are looking for!

Update:

So after a reboot there are a few new observations:

1. OMV has a name for the RAID array now
2. It still shows the array as clean but degraded
3. I can access media from PMS (which pulls data from the same drive)
4. I still cannot access data from my shares (again same data PMS pulls from)

geaves, much appreciate the thorough response!

I failed to mention a few other specifics (a couple of which are in my signature but I should have added into the details I provided (apologies!): The device is indeed an SBC but does have a PCIe slot which allowed me to use a PCIe 2.0 -SATA III adapter, (but yes, not a controller proper). And you are also correct that I'm using an older version 5.x.

To be honest, for my purposes, this OMV (I have run 4.x before) has been so damn stable for me I haven't even thought about upgrading, but I guess this will be the impetus for this change.

I'm sure it will completely shock you to learn that Linux isn't my forte (although I'm not a complete dummy about basic server management). I'm going to proceed with the plan of attempting to recover the healthy drive.

• If I were to use the OMV GUI, I would first delete the RAID configuration, correct?
  • This will allow me to access the individual member drive. From there I can inspect the drive health.
• Why might PMS show allow media access & playback (albeit intermittent) when the file shares will not allow any file exploration?
• How is the array not accessible at all in a degraded state? I've worked with RAID 1, 5, 10 configurations in a production environment (all different flavors of Windows though (physical RAIDs, Storage spaces etc.) and the file system was always still accessible even in a degraded state. So this has me a bit nervous.

Thank you so very much ,hopefully i'll be off to fix this soon!

Zitat von geaves

No, that should not be necessary, ,

My problem there is that i cannot seem to mount & navigate to the individual drive while it is a RAID member:

mount: /mnt/temp: unknown filesystem type 'linux_raid_member'.

So, this is why I was thinking I'd need to break/delete the current array. Again, not my forte...If you could point me in that direction, I should be out of your hair shortly!

Zitat

the fact that PMS sees your media albeit intermittent could suggest there is a hardware issue, something that is degrading or failing.

Makes me wonder if it's not the cheapo SATA card itself...lots of speculation on my part.

New drive & card are on order. I'd sure like to be able to directly access the supposed healthy drive in the meantime to confirm a few things. I do have a near full backup in cold storage on external drive. But I'm also trying to take the opportunity for a learning experience here which is why I'm still pursuing the working with the existing drive.

mofo@Muninn:/mnt/temp$ sudo mount /dev/sdd /mnt/temp

mount: /mnt/temp: unknown filesystem type 'linux_raid_member'.

mofo@Muninn:/mnt/temp$ sudo mount -a /dev/sdd /mnt/temp

mofo@Muninn:/mnt/temp$ ls

mofo@Muninn:/mnt/temp$ sudo umount /mnt/temp

umount: /mnt/temp: not mounted.

mofo@Muninn:/mnt/temp$

I must be doing something dumb. Perhaps I cannot access due to the degraded state of the RAID.

Is there any reason I shouldn't just unmount the RAID array at this point if that's possibly what's preventing me from accessing the member drive?

I'm a little cautious of trying to repair the file system with fsck with the current RAID in place (but perhaps that's completely unwarranted).

Right I see what you mean, I didn't realize they were listed under /srv (i'm an idiot). Curiously, if I navigate there I'm only presented with the array, not the drives. Trying to access the array give i/o errors.

mofo@Muninn:/$ sudo mount -a

[sudo] password for mofo:

mofo@Muninn:/$ ls

bin dev export lib media opt root sbin sharedfolders svr tmp var

boot etc home lost+found mnt proc run selinux srv sys usr

mofo@Muninn:/$ cd srv

mofo@Muninn:/srv$ ls

dev-disk-by-label-LookingGlass dev-disk-by-label-Storage ftp pillar salt

mofo@Muninn:/srv$ cd dev-disk-by-label-Storage

mofo@Muninn:/srv/dev-disk-by-label-Storage$ ls

ls: cannot access 'lost+found': Input/output error

ls: cannot access 'Music': Input/output error

ls: cannot access 'Users': Input/output error

ls: cannot access 'plexmediaserver': Input/output error

ls: cannot access 'Pics': Input/output error

Music Pics Users aquota.group aquota.user lost+found music pics plexmediaserver vids

mofo@Muninn:/srv/dev-disk-by-label-Storage$ cd pics

mofo@Muninn:/srv/dev-disk-by-label-Storage/pics$ ls

ls: reading directory '.': Input/output error

mofo@Muninn:/srv/dev-disk-by-label-Storage/pics$

is there any reason I cannot/should not unmount the array?