CEPH创建RAID0应用BCACHE添加OSD

查看新插入的HDD Slot Number编号：

/opt/MegaRAID/MegaCli/MegaCli64 -PDList -aALL -NoLog|egrep "Enclosure Device ID|Slot Number|Device Id|Firmware state"

确认是3以后创建RAID0：

/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdAdd -r0[32:3] WB Direct -a0

查看创建后的盘符：

fdisk -l

盘符为sdf，应用BCACHE：

make-bcache -B /dev/sdf -C /dev/nvme0n1p15

zap分区:

ceph-volume lvm zap /dev/bcache4

创建OSD：

ceph-deploy osd create ceph-node-1 --data /dev/bcache4 --block-wal /dev/nvme0n1p10 --block-db /dev/nvme0n1p5