Normal state:
Failure status:
1. Close the data migration of the ceph cluster:
The osd hard disk fails, and the status changes to down. After the time interval set by mod osd down
Tag: OSD
Ceph Specifies OSD to create pool
https://my.oschina.net/wangzilong/blog/1549690
Mixed types of disks are allowed in the ceph cluster, for example, some disks are SSD , Part is STAT. If small high-speed disk SSDs for certain