[DRBD-user] DRBD resync QoS

Felix Frank ff at mpexnet.de
Wed Jun 22 09:34:55 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On 06/22/2011 04:28 AM, Digimer wrote:
> Are all ten DRBD resources on the same set of drives?

Good hint: if there *are* indeed 10 DRBDs, the syncer rate should of
course be 30% * THROUGHPUT / NUM_DRBDs, because each resource will use
the defined rate. I.e. in your case, some 30M.

To the OP: Does the rebooted node become Primary before the sync is
complete? If so, you may want to try leaving it Secondary until
everything is back up in sync.
Requests to an Inconsistent node can cause network overhead.

Cheers,
Felix



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