Hello together, today i had an issue with my cache drive on my Unraid Server. I used a 500GB SSD as a cache drive.
Unfortunately i added another cache drive (wanted a separate drive for
my VMs and accidentally added into the cache device pool)
After starting the array and all the setup for the cache device pool
was done i stopped the array again.
I removed the second drive from my cache device pool again.
I started the array again - formatted the removed drive, mounted it
with unassigned devices.#
And then I realized the following error in my Unraid Cache Devices.
"Unmountable: No File System"
Unfortunately I cannot mount it again.
Can you please help me?
Thank you in advance
Best Regards
Patrick
Attached are the information requested.
root@JARVIS:/dev# uname -a
Linux JARVIS 4.19.107-Unraid #1 SMP Thu Mar 5 13:55:57 PST 2020 x86_64
Intel(R) Core(TM) i5-9600K CPU @ 3.70GHz GenuineIntel GNU/Linux
root@JARVIS:/dev# btrfs --version
btrfs-progs v5.4.1
root@JARVIS:/dev# btrfs fi show
Label: none uuid: a07d7790-4cb2-4dd6-b62c-c877c291ff7f
Total devices 1 FS bytes used 384.00KiB
devid 1 size 465.76GiB used 1.02GiB path /dev/nvme0n1p1
warning, device 2 is missing
bad tree block 1139295649792, bytenr mismatch, want=1139295649792, have=0
ERROR: cannot read chunk root
Label: none uuid: 1df2cdfd-d2cb-498b-be96-13cb969e11f5
Total devices 2 FS bytes used 77.57GiB
devid 1 size 465.76GiB used 61.00GiB path /dev/sdb1
*** Some devices missing
dmesg.log
Description: Binary data
