Great, thank you for your answers!

Am Sonntag, 1. Februar 2015 05:52:30 UTC+1 schrieb Nikolaus Rath:
>
> "J. E." <[email protected] <javascript:>> writes: 
> > 1) I read that I should't use s3ql more than once at a time. Does this 
> > only apply when using the same storage url? 
>
> Yes. 
>
> > May I use it twice on the 
> > same computer with e.g. to different S3 target buckets? 
>
> Absolutely. 
>
> > Is there any advantage (in speed or size) of using several smaller 
> > s3ql filesystems than a large one? 
>
> Theoretically yes. Practically probably not. 
>
> > 2) May (should) I directly use an s3ql mount point as data directory 
> > for my Seafile storage server and git storage, or should I prefer e.g. 
> > rsync-ing the content into s3ql using a cronjob? 
>
> If you use the mount point directly as a data directory, Seafile and git 
> will probably become a lot slower. Try it and decide if it's still fast 
> enough for your purposes :-). 
>
> > 3) What happens with an s3ql filesystem if either the network 
> > connection or the backend service (s3) is not available? 
>
> You can still access files that happen to be cached locally at the 
> time, and create new files until the cache is full. Any other request 
> blocks until the network is up again. If connectivity isn't restored 
> within a day, S3QL bails out and terminates. 
>
> > Is there a 
> > full, offline-available copy of the data? 
>
> No. 
>
> > 4) How can I realize an additional backup of (the current state of) an 
> > s3ql file system e.g. to an external drive? 
>
> Not easily. Instead I'd suggest to run an rsync job from your data 
> directory to an S3QL mount point, and to your external drive. 
>
> > Is there local (cached) 
> > content discarded when it gets uploaded, 
>
> No. But there is a limit on the cache size, and you don't have direct 
> control over what gets evicted if the cache is full. 
>
> > 5) Will interrupted uploads (e.g. network outage or local system 
> > crash) be automatically resumed after the next mounting? 
>
> If there's a network outage, you should not even need to unmount. 
>
> If the system crashes, you need to run fsck.s3ql and it will upload 
> everything that is cached but not yet uploaded. 
>
>
> Best, 
> -Nikolaus 
>
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