Time Machine stops working after undetermined amount of time. Restarting samba service fixes the issue.

[sit_rp]

Hello,

 

I have an odd issue as I stated in the title. Time Machine just stops backing up with a generic error message stating that disk is not available. It can take weeks. Most recently it took only 1 day to break. I can access that share no problem from the MacBook (10.15.6). No funny logs on Unraid. 

 

My Time Machine share is not on the array but instead passed through by Unassigned Devices plug-in (external drive connected to USB3 port). Below are the settings I used for SMB. Enhanced MacOS interoperability is enabled. Rather than this, it works well. To get it back and running I restart SMB with  /etc/rc.d/rc.samba restart

 

I hope somebody has seen this before. Thanks for your help!

 

 

 

[Time Machine]     
   ea support = Yes
   path = /mnt/disks/WD4TBPASSPORT/Time_Machine
   vfs objects = catia fruit streams_xattr
   valid users = timemachine
   write list = timemachine
   fruit:time machine max size = 3500 G
   fruit:encoding = native
   fruit:locking = netatalk
   fruit:metadata = netatalk
   fruit:resource = file
   fruit:time machine = yes
   fruit:advertise_fullsync = true
   durable handles = yes
   kernel oplocks = no
   kernel share modes = no
   posix locking = no
   inherit acls = yes

#disable SMB1 for security reasons
[global]
   min protocol = SMB2

#unassigned_devices_start
#Unassigned devices share includes
   include = /tmp/unassigned.devices/smb-settings.conf
#unassigned_devices_end

[sit_rp]

Any ideas or should I submit a bug report?