Ceph cluster process management-- systemctl management (, open the ceph chapter)

Ha, think about it or write articles about ceph. I have limited ability to write technical articles about NB. I would like to communicate with you and make progress together.

1. Introduction 1.1 introduction

As a cluster manager, you can manipulate the cluster in many ways; you can turn on, shut down and restart ceph process services according to actual needs; this article briefly describes the management of ceph storage clusters by systemctl services (there is an opportunity to elaborate on systemctl principles later)

1.2operating system # # Ubuntu 16.04 amd64 # # release number xenial# lsb_release-a2, enable, shut down and restart all ceph services # systemctl {start | stop | restart} ceph.target 3, based on process type, Shut down and restart ceph Service 3.1 mon process # systemctl {start | stop | restart} ceph-mon.target 3.2 mgr process # systemctl {start | stop | restart} ceph-mgr.target 3.3 osd process # systemctl {start | stop | restart} ceph-osd.target 3.4 rgw process # systemctl {start | stop | restart} ceph-radosgw.target 3.5 mds process # systemctl {start | stop | restart} ceph-mds.target 4, based on the process instance, Shut down and restart all ceph service 4.1 mon instances # systemctl {start | stop | restart} ceph-mon@ {mon_instance} .service4.2 mgr instances # systemctl {start | stop | restart} ceph-mgr@ {mgr_instance} .service4.3 osd instances # systemctl {start | stop | restart} ceph-osd@ {osd_instance} .service4.4 rgw instances # systemctl {start | stop | restart} ceph-radosgw@ {rgw_instance} .service4.5 mds instances Systemctl {start | stop | restart} ceph-mds@ {mds_instance} .service