[DRBD-user] CentOS 5.2: really bad performance

Achim Stumpf hakim.news at googlemail.com
Tue Oct 7 16:22:33 CEST 2008

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


Gianluca Cecchi schrieb:
> On Mon, Oct 6, 2008 at 7:44 PM, Achim Stumpf 
> <hakim.news at googlemail.com> wrote:
>> Hi,
>>
>> [snip]
>>
>> common {
>>        protocol        C;
>>        syncer  { rate 30M; }
>> }
>
> What about trying to increase the resync bandwith?
> Try changing the common part to something like
>
> common {
>         protocol        C;
>         syncer  { rate 50M; }
>  }
>
> and see what changes increasing again.
> You can also set the syncer rate to different values for different 
> resources
> In other posts it was also useful to run
>
> drbdadm adjust data1
>
> on both nodes to have modifications in place after changing the config 
> files
> 
I thought that the syncer option is only for the speed of the background 
synchronization of the two drbd disks on the two hosts, and has nothing 
to do with the performance of writing data to the drbd disk.

Achim



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