On Aug 20 2015, Sjoerd <[email protected]> wrote:
> Hi,
>
> Great stuff this s3ql! Thanks for all the effort that's put in it!
>
> What would be better to do for creating "snapshots" in s3ql? I can use the
> s3qlcp command to copy everything in a new directory or I can use rsync to a
> new directory?
You can use either, but s3qlcp is orders of magnitude faster.
> Since s3qlcp exist I would say use the s3qlcp command, but what would be the
> difference, since deduplication is on anyway?
rsync will still read and write every file. S3QL will then calculate a
checksum, and throw all the written data away. s3qlcp will not read or
write anything.
> What I am thing of going to do is:
> - create a date labeled btrfs snapshot
> - rsync that snapshot to s3ql.
Here rsync will copy everything (because it doesn't know about
de-duplication).
>
> or would it be better to:
> - create a date labeled btrfs snapshot
> - create a s3qlsnapshot with s3qlcp
> - rsync the btrfs snapshot into a main dir
Here rsync will only copy whatever has changed since the previous
snapshot, so this will be much faster.
Best,
-Nikolaus
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