[ceph-users] Ceph system disk on non-raid drive

Dear ceph users I discussed about some practices for ceph node hardware configuration and specifically about system disk on non-RAID drive (e.g. internal m2). Failure domain is host or rack, nvme cluster. Is it OK or is it one of possible and "adopted" way to deploy ceph nodes with system disk without RAID1 (hw or sw)? Do you have some experience with such nodes?