[ceph-users] SSD considerations for block.db and WAL

Hi everyone, we currently have 6 OSDs with 8TB HDDs split across 3 hosts. The main usage is KVM-Images. To improve speed we planned on putting the block.db and WAL onto NVMe-SSDs. The plan was to put 2x1TB in each host. One option I thought of was to RAID 1 them for better redundancy, I don't know how high the risk is of corrupting the block.db by one failed SSD block. Or should I just one for WAL+block.db and use the other one as fast storage? Thank you all very much! Christian