Recently I had the issue that all my shares where gone. Doing a quick google research revealed that a reboot might fix the problem and it seemingly did. Now a couple of days later I have found a folder that is empty in the share but has data in it when exploring the disk. In the parent directory in the share it shows 5 disks as being used.

As I currently have about 20 TB of data on the Server I am unable to check for more missing folders.

Here are some screenshots:

How do I get my files back into the shares?

speicher-diagnostics-20260108-2337.zip

Edited January 9Jan 9 by Kai3D
Reverted title to pre merger title as Title issue has been postponed

Every time I reboot my server at least one of my hard drives is not recognized by UnRaid. When booting after a short time in which the server was turned off they get recognized. I'm running a combination of onboard SATA and a SATA expander to attach nine hard drives.

How would I go about troubleshooting this behaviour?

speicher-diagnostics-20260108-2337.zip

Is the problem with drives on the expander?

Looks like you were able to start the array when those diagnostics were taken. Can you get us diagnostics when the problem is occurring?

I have merged your threads since you posted the same diagnostics in both.

What do you get from command line with this?

ls -lah /mnt

Check filesystem on disk1:

Jan 8 23:33:50 Speicher kernel: XFS (md1p1): Metadata corruption detected at xfs_buf_ioend+0xa5/0x380, xfs_inode block 0x20aa69040 xfs_inode_buf_verify

Jan 8 23:33:50 Speicher kernel: XFS (md1p1): Unmount and run xfs_repair

11 hours ago, trurl said:

What do you get from command line with this?

ls -lah /mnt

Here is the output of that command:

root@Speicher:~# ls -lah /mnt
total 16K
drwxr-xr-x 16 root   root  320 Jan  8 23:31 ./
drwxr-xr-x 20 root   root  420 Jan  8 23:37 ../
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 addons/
drwxrwxrwx  1 nobody users  46 Jan  9 04:40 cache/
drwxrwxrwx  9 nobody users 161 Jan  9 04:40 disk1/
drwxrwxrwx  6 nobody users  91 Jan  9 04:40 disk2/
drwxrwxrwx  6 nobody users  91 Jan  9 04:40 disk3/
drwxrwxrwx  4 nobody users  47 Jan  9 04:40 disk4/
drwxrwxrwx  4 nobody users  46 Jan  9 04:40 disk5/
drwxrwxrwx  4 nobody users  47 Jan  9 04:40 disk6/
drwxrwxrwx  7 nobody users 115 Jan  9 04:40 disk7/
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 disks/
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 remotes/
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 rootshare/
drwxrwxrwx  1 nobody users 161 Jan  9 04:40 user/
drwxrwxrwx  1 nobody users 161 Jan  9 04:40 user0/

11 hours ago, trurl said:

Is the problem with drives on the expander?

Looks like you were able to start the array when those diagnostics were taken. Can you get us diagnostics when the problem is occurring?

I now usually shutdown the server and boot it again after about 2-5 min when I need to reboot. the drives affected vary but include both expander and mainboard SATA ports. I will do another reboot soon just to get the diagnostics. until than only the missing folder is relevant as I don't think they are related.

2 hours ago, Kai3D said:

only the missing folder is relevant as I don't think they are related.

6 hours ago, JorgeB said:

Check filesystem on disk1

After doing a file system repair I have gotten back the files from the original folder, but some new files have gone missing in the share. The repair moved some jellyfin metadata into the lost + found which I deleted because they can be regenerated easily.

The files in the Dump folder have been uploaded after the mentioned reboot after which the first files went missing (I didn't notice yet). I can copy them over again but I feel still unsure about other files being there.

speicher-diagnostics-20260109-1618.zip

Your diagnostics shows the Media share is only on cache and disk1.

What do you get from command line with this?

ls -lah /mnt

 Here is the command output.

root@Speicher:~# ls -lah /mnt
total 16K
drwxr-xr-x 16 root   root  320 Jan  9 16:13 ./
drwxr-xr-x 20 root   root  420 Jan  9 16:19 ../
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 addons/
drwxrwxrwx  1 nobody users  46 Jan  9 04:40 cache/
drwxrwxrwx  9 nobody users 161 Jan  9 15:59 disk1/
drwxrwxrwx  6 nobody users  91 Jan  9 04:40 disk2/
drwxrwxrwx  6 nobody users  91 Jan  9 04:40 disk3/
drwxrwxrwx  4 nobody users  47 Jan  9 04:40 disk4/
drwxrwxrwx  4 nobody users  46 Jan  9 04:40 disk5/
drwxrwxrwx  4 nobody users  47 Jan  9 04:40 disk6/
drwxrwxrwx  7 nobody users 115 Jan  9 04:40 disk7/
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 disks/
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 remotes/
drwxrwxrwt  2 nobody users  40 Jan  8 23:30 rootshare/
drwxrwxrwx  1 nobody users 161 Jan  9 15:59 user/
drwxrwxrwx  1 nobody users 161 Jan  9 15:59 user0/

While deleting the lost + found I managed to disable all disks except disk1 from all shares. Now everything appears to be back.