[DRBD-user] Performances - Configuring checksum-based synchronization and replication traffic integrity checking
insyte at gmail.com
Wed Jul 21 17:52:28 CEST 2010
> Are "checksum-based synchronization" and "replication traffic integrity
> checking" affecting the replication performances?
As with all things: It depends.
Checksum-based synchronization trades CPU for bandwidth. So how it
effects performance in your environment depends on the available CPU
and network resources.
I would imagine data-integrity-alg has some nominal CPU cost. I would
be surprised if it cost more than a percent or two of efficiency. Why
not just try it? Do a full re-sync with it enabled and disabled and
see how much it hurts your times.
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