[Samba] vfs_shadow_copy2 not working

[Jeremy Allison]

On Sat, Aug 10, 2019 at 11:22:53PM +0000, douxevip via samba wrote:
> So I'm trying to get shadow copies to work with Windows clients. The snapshots are being stored at /test/.zfs/snapshot
> 
> The snapshots are being named like so:
> 
> autosnap_2019-08-10_21:00:00_frequently
> autosnap_2019-08-10_21:00:00_monthly
> autosnap_2019-08-10_22:00:00_hourly
> 
> This is in my smb.conf:
> 
> [test]
> vfs objects = shadow_copy2
> shadow:snapdir = /test/.zfs/snapshot
> shadow:snapprefix = ^autosnap_
> shadow:format = %Y-%m-%d_%H:%M:%S_\(frequently\)\{0,1\}\(hourly\)\{0,1\}\(daily\)\{0,1\}\(monthly\)\{0,1\}
> #shadow:delimiter = _
> shadow:sort = desc
> shadow:localtime = no
> 
> I've also tried it with the delimiter line uncommented (and then removing the underscore from the snapprefix), I've tried putting the shadow:format syntax between quotation marks ("") as well, but it doesn't just show up in Windows.
> 
> I think that syntax should just work according to the manual. Why is it not working?

What does log level 10 say ?