[Observium] Moving logs and rrds to another partition?

I want to move all logs and rrds to another partition.

I know rrds are stored in "/opt/observium/rrd"...

But where on disk does Observium store syslogs|eventlogs?

Unless they are in the DB and moving them to another partition is impossible...?

I have it installed on Centos 6.5.

Thanks in advance for any help!

Benoit