Hi

 

I am using latest 6.2.4 and using 2x SSD in a pool for the first time

 

I run Docker of Sickbeard and SAbnzbd and works fine

 

what I am finding is I am getting more read /writes on Cache 2 then Cache 1, is this right?  they should both be the same surely?

 

earlier Cache 1 spun down leaving Cache 2 on and working, again they should be both on all the time?

 

when I click into Cache 1 it shows the FS as being btrfs but Cache 2 doesn't show this.

 

any ideas? please see attached

 

thanks!

post the output of both:

 

btrfs fi df /mnt/cache

 

btrfs fi show /mnt/cache

 

Use the CLI or look at the cache webpage.

Thanks, please see below

 

root@Tower:~# btrfs fi df /mnt/cache
Data, single: total=13.00GiB, used=11.15GiB
System, single: total=32.00MiB, used=16.00KiB
Metadata, single: total=1.00GiB, used=1.39MiB
GlobalReserve, single: total=16.00MiB, used=0.00B

root@Tower:~# btrfs fi show /mnt/cache
Label: none  uuid: 8b6a1bdf-be10-4f17-b7ac-11f9d4ef2552
        Total devices 1 FS bytes used 11.16GiB
        devid    1 size 223.57GiB used 14.03GiB path /dev/sdi1

 

 

 

Yep, only cache2 is being used.

 

You can add cache1 again after wiping it, but make a cache backup before just in case.

Thanks.  Can you let me know how I go about wiping the drive? After its wiped, just re add it to the cache pool?

Double check cache1 is still sdh, don't forget to backup first in case something goes wrong, stop the array and:

 

wipefs -a /dev/sdh

 

After that start the array and the pool should automatically rebalance, check btrfs df and show after it's finished (when the reads/writes) stop.

Thanks mate.

 

Wipe command didn't work

 

Ended up removing each cache drive and formatting when unraid prompted.  Now shows as raid 1, reinstalled dockers and all working.  Thanks again mate

Glad you got it sorted, out of curiosity did wipefs give an error, or after wiping the rebalance didn't happen?

 

Glad you got it sorted, out of curiosity did wipefs give an error, or after wiping the rebalance didn't happen?

 

after i did the command in Putty, nothing happened, checked the btrfs df and show and still showed one drive

 

then i did the wipe command with sudo (just to see what would happen) and got this:

 

root@Tower:~# root@Tower:~# sudo wipefs -a /dev/sdh

-bash: root@Tower:~#: command not found

root@Tower:~# /dev/sdh: 2 bytes were erased at offset 0x000001fe (dos): 55 aa

-bash: syntax error near unexpected token `('

root@Tower:~# /dev/sdh: calling ioctl to re-read partition table: Success

 

 

checked the btrfs df and show and still showed one drive

 

so stopped the array , added one by one when it said unmountable, formatted.

 

key thing was to take a backup, proved valuable