Re: how can time machine know difference between cephfs fuse and kernel client?

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Hi,

completely different idea: Have you tried to export the "time capsule" storage via AFP (using netatalk) instead of Samba? 
We are also planning to offer something like this for our users (in the mid-term future), but my feeling was that compatibility with netatalk / AFP would be better than with Samba. 
That also appears to be the implementation consumer-grade NAS devices are using behind the scenes for their "time capsule" functionality. 

I also don't have experience with this (yet) but I know some users backing up their time machine data to AFP shares from NAS devices, and in general this appears to work well. 
Probably it won't help with the space reporting issue, but it might still be of interest for the use case? 
In any case, I'd be very interested in case you have experience with both, and if so, why you decided for Samba ;-). 

And since our plans were also to use export a CephFS mounted via fuse, I'll closely follow your issue... 

Cheers,
	Oliver

Am 17.08.18 um 17:13 schrieb Chad William Seys:
> Hello all,
>   I have used cephfs served over Samba to set up a "time capsule" server.  However, I could only get this to work using the cephfs kernel module.  Time machine would give errors if cephfs were mounted with fuse. (Sorry, I didn't write down the error messages!)
>   Anyone have an idea how the two methods of mounting are detectable by time machine through Samba?
>   Windows 10 File History behaved the same way.  Error messages are "Could not enable File History. There is not enough space on the disk". (Although it shows the correct amount of space.) And "File History doesn't recognize this drive."
>   I'd like to use cephfs fuse for the quota support.  (The kernel client is said to support quotas with Mimic and kernel version >= 4.17, but that is to cutting edge for me ATM.)
> 
> Thanks!
> Chad.
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