Warning Cache pool BTRFS missing device - But disk appears to be online?

[Inenting]

Hey,

 

I have a quick question, when I started up my array I got a warning:

 

unraidserver: Warning [UNRAIDSERVER] - Cache pool BTRFS missing device(s)
KINGSTON_SH103S3480G_50026B724B05B2DE (sdi)

 

But when I look at the Cache pool, it looks fine:

 

 

And the output of "btrfs fi show" is:

 

Label: none  uuid: 0130b325-8ce1-4ceb-a715-467c12ccc4eb
        Total devices 4 FS bytes used 252.93GiB
        devid    2 size 447.12GiB used 148.03GiB path /dev/mapper/sdj1
        devid    3 size 465.75GiB used 167.03GiB path /dev/mapper/sdh1
        devid    6 size 447.12GiB used 149.00GiB path /dev/mapper/sdg1
        devid    7 size 447.12GiB used 148.00GiB path /dev/mapper/sdi1

Label: none  uuid: 666f8abb-816d-4947-bcf4-58e359c735d0
        Total devices 1 FS bytes used 8.12GiB
        devid    1 size 50.00GiB used 11.52GiB path /dev/loop2

Should I be worried? I can't restart the server atm because it is doing a rebuild and parity check

The server did restart like 4 to 5 times because I was diagnosing multiple disks being offline (and it is fine now)

 

Also it gives me a warning on the shares pages: "Some or all files are unprotected" even the shares without cache drive, or is this because of the rebuild? Don't remember seeing it before..

Edited June 6, 2020 by Inenting

[JorgeB]

Please post the diagnostics: Tools -> Diagnostics

[mgutt]

This user had the same problem:

https://forums.unraid.net/topic/112694-warning-missing-disk/?do=findComment&comment=1025818

 

 

He missed to post the diagnostics as well, but seems to solve it by changing the nvme options in the BIOS back from RAID to AHCI (he played with the setting).

 

But finally I wonder, too, why this isn't visible in the GUI and only a notification comes up?!

[JorgeB]

56 minutes ago, mgutt said:

But finally I wonder, too, why this isn't visible in the GUI and only a notification comes up?!

 

Depending on the issue there might not even be a notification, I suggest using a script to monitor any pool.

 

 

[mgutt]

7 hours ago, JorgeB said:

I suggest using a script to monitor any pool.

No feature request to implement this directly into Unraid?

[JorgeB]

16 hours ago, mgutt said:

No feature request to implement this directly into Unraid?

I did one many years ago: