I got this notification from Fix Common Problems. it told me to: "post your diagnostics and ask for assistance on the unRaid forums"

 

so here I am, what is going on and where the heck should I look for a problem?

 

unraid-diagnostics-20171210-1002.zip

 

 

Thanks in advance

The Doc.

Its issuing the call trace when unmounting your cache drive.

 

I *think* its because of this:

Label: none  uuid: 7c0a6cb7-b610-4a31-9b58-a09704ac0a81
	Total devices 2 FS bytes used 110.15GiB
	devid    1 size 232.89GiB used 231.88GiB path /dev/sdj1
	devid    2 size 232.89GiB used 232.88GiB path /dev/sdi1

But @johnnie.black is the real expert all things btrfs

Cache filesystem is almost completely allocated, though it does not look fully allocated and call traces if it was are unusual, still it should be balanced, especially since it has dual data profiles, you should be getting a system notification about that, before starting best to backup anything important on the pool just in case, then run 1st:

 

btrfs balance start -dusage=75 /mnt/cache

 

and when done run:

 

btrfs balance start -dconvert=raid10 /mnt/cache

When it finishes check that the single profile is gone:

 

Quote

Data, RAID1: total=230.85GiB, used=109.81GiB
Data, single: total=1.00GiB, used=0.00B
System, RAID1: total=32.00MiB, used=48.00KiB
Metadata, RAID1: total=1.00GiB, used=356.72MiB
GlobalReserve, single: total=131.64MiB, used=0.00B

 

22 hours ago, johnnie.black said:

Cache filesystem is almost completely allocated, though it does not look fully allocated and call traces if it was are unusual, still it should be balanced, especially since it has dual data profiles, you should be getting a system notification about that, before starting best to backup anything important on the pool just in case, then run 1st:

 

btrfs balance start -dusage=75 /mnt/cache

 

and when done run:

 

btrfs balance start -dconvert=raid10 /mnt/cache

When it finishes check that the single profile is gone:

 

 

 

 

@johnnie.black when I try to run the second part of your instructions

btrfs balance start -dconvert=raid10 /mnt/cache

I get the following

ERROR: error during balancing '/mnt/cache': Invalid argument
There may be more info in syslog - try dmesg | tail

any suggestions?

 

Thanks 

 

The Doc.

2 minutes ago, DocLove said:

any suggestions?

 

Sorry, I meant:

 

btrfs balance start -dconvert=raid1 /mnt/cache

@johnnie.black That did it, every thing runs now, here is what the system returned:

 

1st command 

Done, had to relocate 1 out of 4 chunks

2nd command

Done, had to relocate 2 out of 4 chunks

now the system reports this for cache drive 1 pool information, the drive shows 1% used on the dashboard.

 

Label: none  uuid: 7c0a6cb7-b610-4a31-9b58-a09704ac0a81
	Total devices 2 FS bytes used 1.17GiB
	devid    1 size 232.89GiB used 3.03GiB path /dev/sdh1
	devid    2 size 232.89GiB used 3.03GiB path /dev/sdg1

is this good? if not what do I do next?

 

Thanks

The Doc

1 minute ago, DocLove said:

is this good?

It looks good, but not sure the call traces were related to the filesystem being almost fully allocated, see if you don't get more now.

 

It's good practice to run a weekly balance to keep it under control until you update to v6.4, now on kernel 4.14 which should fix this issue, and my early testing seems to confirm it does fix it.

 

Thank you so much @johnnie.black for your support in working on this problem, do you know when is v6.4 going to be released? the most current stable version is 6.3.5.

 

The Doc

No idea, you can check the progress on the v6.4 prerelease forum.