I am trying to run a AFP share for time-machine; I have the share setup and it shows in timemachine and I can get 1 good backup in (sometimes) but its SUPER slow like less then 1MB/s over my lan network when I get about 85-120MB/s when using SMB so I know its not my network or hardware (yes the transfer speeds were tested on the same drives in the array) 

 

It will also disconnect my time-machine in the middle of transfers corrupting the backups. In /var/log/syslog I found these messages 

 

Sep 20 22:33:48 NAS afpd[2239]: transmit: Request to dbd daemon (volume tm_dps) timed out.

I found some posts on google saying if you are seeing timeouts like that you can try and rebuild the "CNID DB" but when I tried that command also timed out.

root@NAS:/mnt/user/tm_dps# dbd -f /mnt/user/tm_dps/
Sep 20 22:26:13.623871 dbd[2759] {cnid_dbd.c:414} (error:CNID): transmit: Request to dbd daemon (volume tm_dps) timed out.
Failed to wipe CNID db
root@NAS:/mnt/user/tm_dps# dbd -V
dbd 3.1.11

 

Here is my hardware and watching PS and top and iostats I do not see a bottleneck there that would lend me to it being a issue there. What other debug can I turn on or get that will help find the root cause?

 

root@NAS:~# lscpu
Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
CPU(s):              32
On-line CPU(s) list: 0-31
Thread(s) per core:  2
Core(s) per socket:  8
Socket(s):           2
NUMA node(s):        2
Vendor ID:           GenuineIntel
CPU family:          6
Model:               79
Model name:          Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz

root@NAS:~# free -h
              total        used        free      shared  buff/cache   available
Mem:            31G        1.4G         18G        1.1G         11G         28G
Swap:            0B          0B          0B

Yeah sorry about that.  Samba (SMB) has supported Time Machine for some time now.  We are in process of fixing up Time Machine support to use SMB and will be deprecating AFP support entirely.  Trying to get this into Unraid OS 6.7 release.

Ok so know bug; if I am understanding the Time Machine over SMB there is no setup for that ATM but shooting for 6.7.

 

If that is the case is there a beta ? because being with out backups for multiple systems is rely not ideal. 

So I see that the support was added to samba core https://github.com/samba-team/samba/pull/64 and unraid is running 

root@NAS:~# smbstatus

Samba version 4.8.5

 

When you talk about getting this into 6.7 is that just for the UI support or is the current one built with out the needed flags?

 

As in can I edit the config to turn on "fruit:advertise_fullsync = true" ?