# Storage Node Removal Guide > Remove storage node from cluster. Remove storage node from cluster. Make sure your storage data replication is either 2 or 3. ## Connect to a Controller Node {#connect-to-a-controller-node} ```bash $ ssh admin@192.168.1.x Warning: Permanently added '192.168.1.x' (ECDSA) to the list of known hosts. Password: ``` ## Check the Storage Status {#check-the-storage-status} ```bash cc1> storage cc1:storage> status cluster: id: c6e64c49-09cf-463b-9d1c-b6645b4b3b85 health: HEALTH_OK services: mon: 3 daemons, quorum cc1,cc2,cc3 mgr: cc1(active), standbys: cc2, cc3 mds: cephfs-1/1/1 up {0=cc1=up:active}, 2 up:standby osd: 24 osds: 24 up, 24 in rgw: 3 daemons active data: pools: 23 pools, 1837 pgs objects: 10.50k objects, 12.7GiB usage: 31.3GiB used, 3.74TiB / 3.77TiB avail pgs: 1837 active+clean io: client: 15.5KiB/s rd, 0B/s wr, 15op/s rd, 10op/s wr +----+-----------+-------+-------+--------+---------+--------+---------+-----------+ | id | host | used | avail | wr ops | wr data | rd ops | rd data | state | +----+-----------+-------+-------+--------+---------+--------+---------+-----------+ | 0 | cc1 | 2063M | 117G | 0 | 0 | 2 | 61 | exists,up | | 1 | cc1 | 2020M | 117G | 0 | 0 | 1 | 36 | exists,up | | 2 | cc1 | 1089M | 135G | 0 | 0 | 0 | 0 | exists,up | | 3 | cc1 | 1081M | 135G | 0 | 0 | 0 | 0 | exists,up | | 4 | cc2 | 1656M | 117G | 0 | 0 | 0 | 0 | exists,up | | 5 | cc2 | 2073M | 116G | 0 | 0 | 0 | 0 | exists,up | | 6 | cc2 | 1089M | 135G | 0 | 0 | 0 | 0 | exists,up | | 7 | cc2 | 1089M | 135G | 0 | 0 | 4 | 0 | exists,up | | 8 | cc3 | 1781M | 117G | 0 | 0 | 0 | 0 | exists,up | | 9 | cc3 | 1961M | 117G | 0 | 0 | 7 | 157 | exists,up | | 10 | cc3 | 1089M | 135G | 0 | 0 | 0 | 0 | exists,up | | 11 | cc3 | 1089M | 135G | 0 | 0 | 0 | 0 | exists,up | | 12 | compute01 | 1462M | 56.5G | 0 | 0 | 0 | 0 | exists,up | | 13 | compute01 | 1400M | 56.6G | 0 | 0 | 0 | 0 | exists,up | | 14 | compute01 | 1334M | 56.7G | 0 | 0 | 0 | 6 | exists,up | | 15 | compute01 | 1426M | 56.6G | 0 | 0 | 0 | 0 | exists,up | | 16 | compute01 | 1101M | 464G | 0 | 0 | 0 | 19 | exists,up | | 17 | compute01 | 1089M | 464G | 0 | 0 | 0 | 0 | exists,up | | 18 | storage01 | 1040M | 57.0G | 0 | 0 | 0 | 0 | exists,up | | 19 | storage01 | 1040M | 57.0G | 0 | 0 | 0 | 0 | exists,up | | 20 | storage01 | 1040M | 57.0G | 0 | 0 | 0 | 0 | exists,up | | 21 | storage01 | 1048M | 57.0G | 0 | 0 | 0 | 0 | exists,up | | 22 | storage01 | 1081M | 464G | 0 | 0 | 0 | 0 | exists,up | | 23 | storage01 | 1105M | 464G | 0 | 0 | 0 | 0 | exists,up | +----+-----------+-------+-------+--------+---------+--------+---------+-----------+ ``` ## Remove Node {#remove-node} Removing storage01 from the cluster. ```bash cc1:cluster> remove_node 1: compute01 2: storage01 Enter index: 2 this command is only applicable for compute or storage nodes make sure its running instances have been properly terminated or migrated shutdown the target host before proceeding Enter 'YES' to confirm: YES cc1:cluster> ``` ## Check the Storage Status {#check-the-storage-status-1} storage01 node has been removed from the cluster, ceph is recovering the lost replication data automatically. ```bash cc1> storage cc1:storage> status cluster: id: c6e64c49-09cf-463b-9d1c-b6645b4b3b85 health: HEALTH_WARN Reduced data availability: 2 pgs inactive Degraded data redundancy: 139/21222 objects degraded (0.655%), 10 pgs degraded services: mon: 3 daemons, quorum cc1,cc2,cc3 mgr: cc1(active), standbys: cc2, cc3 mds: cephfs-1/1/1 up {0=cc1=up:active}, 2 up:standby osd: 18 osds: 18 up, 18 in; 510 remapped pgs rgw: 3 daemons active data: pools: 23 pools, 1837 pgs objects: 10.50k objects, 12.7GiB usage: 25.4GiB used, 2.61TiB / 2.63TiB avail pgs: 10.670% pgs unknown 0.435% pgs not active 139/21222 objects degraded (0.655%) 1406 active+clean 214 active+clean+remapped 196 unknown 9 active+recovery_wait+degraded 5 activating+remapped 3 activating 3 active+undersized 1 active+undersized+degraded+remapped+backfilling io: client: 13.1KiB/s rd, 0B/s wr, 13op/s rd, 9op/s wr recovery: 1.11MiB/s, 4objects/s +----+-----------+-------+-------+--------+---------+--------+---------+-----------+ | id | host | used | avail | wr ops | wr data | rd ops | rd data | state | +----+-----------+-------+-------+--------+---------+--------+---------+-----------+ | 0 | cc1 | 2060M | 117G | 0 | 0 | 0 | 0 | exists,up | | 1 | cc1 | 2025M | 117G | 0 | 0 | 0 | 0 | exists,up | | 2 | cc1 | 1093M | 135G | 0 | 0 | 0 | 0 | exists,up | | 3 | cc1 | 1086M | 135G | 10 | 0 | 5 | 69 | exists,up | | 4 | cc2 | 1668M | 117G | 0 | 0 | 0 | 0 | exists,up | | 5 | cc2 | 2086M | 116G | 0 | 0 | 0 | 0 | exists,up | | 6 | cc2 | 1093M | 135G | 0 | 0 | 0 | 0 | exists,up | | 7 | cc2 | 1094M | 135G | 0 | 0 | 4 | 0 | exists,up | | 8 | cc3 | 1785M | 117G | 0 | 0 | 0 | 0 | exists,up | | 9 | cc3 | 1957M | 117G | 0 | 0 | 0 | 0 | exists,up | | 10 | cc3 | 1093M | 135G | 0 | 0 | 0 | 0 | exists,up | | 11 | cc3 | 1094M | 135G | 0 | 0 | 0 | 0 | exists,up | | 12 | compute01 | 1463M | 56.5G | 0 | 0 | 0 | 0 | exists,up | | 13 | compute01 | 1402M | 56.6G | 0 | 0 | 0 | 0 | exists,up | | 14 | compute01 | 1336M | 56.7G | 0 | 0 | 0 | 0 | exists,up | | 15 | compute01 | 1427M | 56.6G | 0 | 0 | 0 | 0 | exists,up | | 16 | compute01 | 1106M | 464G | 0 | 0 | 0 | 0 | exists,up | | 17 | compute01 | 1094M | 464G | 0 | 0 | 0 | 0 | exists,up | +----+-----------+-------+-------+--------+---------+--------+---------+-----------+ ``` ## Check Repair Services {#check-repair-services} ```bash cc1> cluster cc1:cluster> check_repair Service Status Report ClusterLink ok [ link(v) clock(v) dns(v) ] ClusterSys ok [ bootstrap(v) license(v) ] ClusterSettings ok [ etcd(v) ] HaCluster FIXING [ hacluster(3) ] ok [ hacluster(f) ] MsgQueue ok [ rabbitmq(v) ] IaasDb ok [ mysql(v) ] VirtualIp ok [ vip(v) haproxy_ha(v) ] Storage ok [ ceph(v) ceph_mon(v) ceph_mgr(v) ceph_mds(v) ceph_osd(v) ceph_rgw(v) rbd_target(v) ] ApiService ok [ haproxy(v) httpd(v) lmi(v) memcache(v) ] SingleSignOn ok [ keycloak(v) ] Compute ok [ nova(v) ] Baremetal ok [ ironic(v) ] Network ok [ neutron(v) ] Image ok [ glance(v) ] BlockStor ok [ cinder(v) ] FileStor ok [ manila(v) ] ObjectStor ok [ swift(v) ] Orchestration ok [ heat(v) ] LBaaS ok [ octavia(v) ] DNSaaS ok [ designate(v) ] K8SaaS ok [ k3s(v) rancher(v) ] InstanceHa ok [ masakari(v) ] DisasterRecovery ok [ freezer(v) ] BusinessLogic ok [ mistral(v) murano(v) cloudkitty(v) senlin(v) watcher(v) ] ApiManager ok [ tyk(v) redis(v) mongodb(v) ] DataPipe ok [ zookeeper(v) kafka(v) ] Metrics ok [ monasca(v) telegraf(v) grafana(v) ] LogAnalytics ok [ filebeat(v) auditbeat(v) logstash(v) es(v) kibana(v) ] Notifications ok [ influxdb(v) kapacitor(v) ] cc1:cluster> ```