I think I have the solution to my problem, but involved so much investigation it warranted a writeup.
My sharespace was a 2TB unit with the Span configuration for ‘RAID’.
When I first installed it I could connect my MacBook to it and it could use it as a time machine backup volume. (The machine that came up in finder was -Backup.
I wanted it to be RAID 5, so I bought a 3rd WD Green Caviar 1TB unit and installed it, then redid the volume as a RAID 5 unit.
on restart following the RAID 5 rebuild the timemachine volume could be seen and timemachine preferences would allow me to select it as a disk. It then got into an long wait while it was ‘making the backup disk avaiable’. It then resulted in an OS error -5 (from memory).
Here’s what I understand to be the problem. There is a volume that should have been recreated as an apple share that has not been recreated on the RAID rebuild.
There is a line in the mDNSResponder.conf file on the machine that says (some numbers and names changed for privacy):
mDNSResponder.conf:“sharespacename-Backup” _adisk._tcp local. 9 “sys=waMA=00:90:AA:55:CC:22” “dk0=adVF=0x83,adVN=WD_Backup”
Note the last ‘option’ that I presume is sent to the mDNS daemon
I think this stands for Appletalk daemon Volume Name
When you go to /etc/netatalk/AppleVolumes.Default, the volume is not there:
interestingly, I recall seeing in the log at somepoint that it could not find a CNID for /DataVolumes/.timemachine
that directory is present on the machine, BUT the volume is not in appleVolumes, and that needs fixing.
I note that someone else on the forum had an issue and fixed it too by adding the volume to the appletalk volumes file. That fixed it for them.
so, I propose adding
to the applevolumes.default file. let’s see what happens.