[ceph-users] partitioning OSD Storage drive

Is it possible to partition an OSD storage drive? As I only have 2 S-ATA ports it sounds like a better choice to use a small part of the two SSDs for the operating system and leave the rest to Ceph. Can I do this? I already have a setup like this with ZFS and it can have significant downsides. but we can live with slow and save data due to this combination.