Re: [Bacula-users] Bacula causing high disk-io on clients
2015-06-27 05:51:27
On 6/26/2015 7:26 AM, Josh Fisher wrote:
> However, for backup devices lacking hardware compression (such as disk),
> compression may be warranted regardless of client connection speed. This
> is why a SD level compression feature would be useful.
Compressing data on the client means fewer bytes to send over the wire.
Block-level compression like bzip2 tends to be completely cpu-bound and
anything bigger than a cellphone tends to have plenty of cycles to
spare. SD level compression is saving bandwidth where it's scarce at the
cost of cycles that are abundant -- why would anyone *not* want it?
Dima
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