On Dec 30 2018, [email protected] wrote:
> Hi,
>
> I was using s3ql 2.33 to back up from my local hard drive to an USB drive,
> on my Ubuntu system.
>
> I noticed that gigabytes of files were written to /home/username/.s3ql/
>
> Why is this needed since both the source and destination are essentially
> "local"?
It is a cache.
> Could it be avoided in future versions?
It already can, use the --cachedir, --cache-size and --max-cache-entries
mount options. But don't set the cache to zero or performance will be terrible.
> I'm asking because my
> drive is an SSD drive and I want to prolong its life by avoiding
> unnecessary writes.
Best put --cachedir on a tmpfs then.
Best,
-Nikolaus
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