The unraid dashboard reports that 239GB of my cache are used, in Krusader summing up /mnt/cache gives 165GB. How come?

 

(using a btrfs raid1 on 2 SSDs as cache)

Edited January 21, 20224 yr by b0m541

attach diagnostics to your NEXT post in this thread

I decline.

 

If some is able to answer without that, it is welcome.

 

13 hours ago, b0m541 said:

(using a btrfs raid1 on 2 SSDs as cache)

Are these disks the same size?

Yes.

11 hours ago, b0m541 said:

I decline.

I have no more guesses with no more information. Even if I wanted to go back and forth with one question or another for possibly days, I might not ever stumble on the right question to ask you. Maybe diagnostics would suggest a good answer, or at least a good question.

Maybe something here for you

 

https://unix.stackexchange.com/questions/337422/discrepancy-in-disk-usage-between-btrfs-fi-show-and-btrfs-fi-df

 

or some other google search result

You could get the diagnostics and then just post the contents of system/btrfs-usage.txt maybe that would tell something

Dashboard: 213 GB of 500 GB used (42.5%)

Krusader summing up content of /mnt/cache: 167.4GB

 

btrfs-usage.txt:

Pool: cache
Overall:
    Device size:         931.52GiB
    Device allocated:         402.06GiB
    Device unallocated:         529.46GiB
    Device missing:             0.00B
    Used:             394.72GiB
    Free (estimated):         267.72GiB    (min: 267.72GiB)
    Free (statfs, df):         267.72GiB
    Data ratio:                  2.00
    Metadata ratio:              2.00
    Global reserve:         512.00MiB    (used: 0.00B)
    Multiple profiles:                no

                    Data      Metadata System              
Id Path             RAID1     RAID1    RAID1    Unallocated
-- ---------------- --------- -------- -------- -----------
 1 /dev/mapper/sdk1 199.00GiB  2.00GiB 32.00MiB   264.73GiB
 2 /dev/mapper/sdj1 199.00GiB  2.00GiB 32.00MiB   264.73GiB
-- ---------------- --------- -------- -------- -----------
   Total            199.00GiB  2.00GiB 32.00MiB   529.46GiB
   Used             196.00GiB  1.35GiB 48.00KiB   

 

 

Having read these information it doesn't get any clearer to me...

Edited January 21, 20224 yr by b0m541

GUI and df for example will show the correct stats for that pool, not all tools show correct stats with btrfs, there are currently about 198GiB (or 213GB) used.