PVE ceph 服务

https://docs.ceph.com/en/latest/cephadm/services

使用 systemctl 管理ceph 服务

  1. MON Service (Monitor Service):
    • Monitors the health and status of the Ceph cluster.
  2. MGR Service (Manager Service):
    • Overview: Provides a management interface for the Ceph cluster.
  3. OSD Service (Object Storage Daemon):
    • Manages storage devices for storing and retrieving data as objects.
  4. RGW Service (RADOS Gateway Service – Object Gateway):
    • Offers a RESTful API gateway interface for Ceph’s object storage.
  5. MDS Service (Metadata Server):
    • Manages metadata for the Ceph File System (CephFS).
  6. NFS Service:
    • Provides Network File System (NFS) access to Ceph storage.
    • Utilizes the nfs-ganesha daemon.
  7. RBD Service (RADOS Block Device):
    • Manages block storage devices within the Ceph cluster.
    • Utilizes the rbd component and interacts with the rados and ceph-osd daemons.

管理ceph服务级别

In a Ceph cluster, services are organized and managed at different levels:

  • cluster
  • node
  • daemon

The command syntax to start, stop, or restart cluster service is;

ceph orch <start|stop|restart> <service_name>

List Ceph SystemD services running on a specific node;

sudo systemctl list-units "*ceph*"

Thus, the command syntax is;

ceph orch daemon <start|stop|restart> SERVICE_NAME

You can get the SERVICE_NAME from the ceph orch ps command.

ceph orch daemon restart grafana.ceph-admin

Check more on;

ceph orch daemon -h

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