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$ kubectl openebs get volumes --cas-type=cstor NAMESPACE NAME STATUS VERSION CAPACITY STORAGE CLASS ATTACHED ACCESS MODE ATTACHED NODE cstor pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 Healthy 2.9.0 5.0 GiB cstor-csi-sc Bound ReadWriteOnce N/A cstor pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc Healthy 2.0.0 20 GiB common-storageclass Bound ReadWriteOnce node1-virtual-machine
Note: For volumes not attached to any application, the
ATTACH NODEwould be shown asN/A. -
$ kubectl openebs get storage --cas-type=cstor NAME HOSTNAME FREE CAPACITY READ ONLY PROVISIONED REPLICAS HEALTHY REPLICAS STATUS AGE cstor-storage-k5c2 node1-virtual-machine 45 GiB 45 GiB false 1 0 ONLINE 10d2h default-cstor-disk-dcrm node1-virtual-machine 73 GiB 90 GiB false 7 7 ONLINE 27d2h default-cstor-disk-fp6v node2-virtual-machine 73 GiB 90 GiB false 7 7 ONLINE 27d2h default-cstor-disk-rhwj node1-virtual-machine 73 GiB 90 GiB false 7 4 OFFLINE 27d2h
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$ kubectl openebs describe volume pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 Details : ----------------- NAME : pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 ACCESS MODE : ReadWriteOnce CSI DRIVER : cstor.csi.openebs.io STORAGE CLASS : cstor-csi VOLUME PHASE : Released VERSION : 2.9.0 CSPC : cstor-storage SIZE : 5.0 GiB STATUS : Init REPLICA COUNT : 1 Portal Details : ------------------ IQN : iqn.2016-09.com.openebs.cstor:pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 VOLUME NAME : pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 TARGET NODE NAME : node1-virtual-machine PORTAL : 10.106.27.10:3260 TARGET IP : 10.106.27.10 Replica Details : ----------------- NAME TOTAL USED STATUS AGE pvc-193844d7-3bef-45a3-8b7d-ed3991391b45-cstor-storage-k5c2 72 KiB 4.8 MiB Healthy 10d3h Cstor Completed Backup Details : ------------------------------- NAME BACKUP NAME VOLUME NAME LAST SNAP NAME backup4-pvc-b026cde1-28d9-40ff-ba95-2f3a6c1d5668 backup4 pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 backup4 Cstor Restores Details : ----------------------- NAME RESTORE NAME VOLUME NAME RESTORE SOURCE STORAGE CLASS STATUS backup4-3cc0839b-8428-4361-8b12-eb8509208871 backup4 pvc-193844d7-3bef-45a3-8b7d-ed3991391b45 192.168.1.165:9000 cstor-csi 0
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$ kubectl openebs describe storage default-cstor-disk-fp6v --openebs-namespace=openebs default-cstor-disk-fp6v Details : ---------------- NAME : default-cstor-disk-fp6v HOSTNAME : node1-virtual-machine SIZE : 90 GiB FREE CAPACITY : 73 GiB READ ONLY STATUS : false STATUS : ONLINE RAID TYPE : stripe Blockdevice details : --------------------- NAME CAPACITY STATE blockdevice-8a5b69d8a2b23276f8daeac3c8179f9d 100 GiB Active Replica Details : ----------------- NAME PVC NAME SIZE STATE pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc-default-cstor-disk-fp6v mongo 992 MiB Healthy
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Describe any PVC using this command, it will determine the cas engine and show details accordingly.
$ kubectl openebs describe pvc mongo mongo Details : ------------------ NAME : mongo NAMESPACE : default CAS TYPE : cstor BOUND VOLUME : pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc ATTACHED TO NODE : node1-virtual-machine POOL : default-cstor-disk STORAGE CLASS : common-storageclass SIZE : 20 GiB USED : 1.1 GiB PV STATUS : Healthy Target Details : ---------------- NAMESPACE NAME READY STATUS AGE IP NODE openebs pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc-target-7487cbc8bc5ttzl 3/3 Running 26d22h 172.17.0.7 node1-virtual-machine Replica Details : ----------------- NAME TOTAL USED STATUS AGE pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc-default-cstor-disk-dcrm 992 MiB 1.1 GiB Healthy 26d23h pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc-default-cstor-disk-fp6v 992 MiB 1.1 GiB Healthy 26d23h pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc-default-cstor-disk-rhwj 682 MiB 832 MiB Offline 26d23h Additional Details from CVC : ----------------------------- NAME : pvc-b84f60ae-3f26-4110-a85d-bce7ec00dacc REPLICA COUNT : 3 POOL INFO : [default-cstor-disk-dcrm default-cstor-disk-fp6v default-cstor-disk-rhwj] VERSION : 2.1.0 UPGRADING : true
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NOTE: Currently supported only for cstor
$ kubectl openebs describe pvc mongo --openebs-namespace=openebs --debug
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NOTE: supported RAID Types include stripe, mirror, raidz, raidz2
Flag Name Purpose Example Values Default-Value --nodes comma separated list of node's hostnames node1node1,node2,node3"" --raidtype defaults to stripe, supports stripe,mirror,raidz,raidz2stripe --capacity minimum capacity of individual blockdevices in the CSPC 10Gi,10G,10GB10Gi--number-of-devices number of blockdevices in each node numbers above zero value depends on the raidType # stripe pool example $ kubectl openebs generate cspc --nodes=shubham apiVersion: cstor.openebs.io/v1 kind: CStorPoolCluster metadata: creationTimestamp: null generateName: cstor namespace: openebs spec: pools: - dataRaidGroups: - blockDevices: # /var/openebs/sparse/0-ndm-sparse.img 10GB - blockDeviceName: sparse-6b277da87b7487e501c03ea0001d6d92 nodeSelector: kubernetes.io/hostname: shubham poolConfig: dataRaidGroupType: stripe # raidz pool example $ kubectl openebs generate cspc --nodes=node1 --raidtype=raidz apiVersion: cstor.openebs.io/v1 kind: CStorPoolCluster metadata: creationTimestamp: null generateName: cstor namespace: openebs spec: pools: - dataRaidGroups: - blockDevices: # /dev/nvme2n1 100.0GiB - blockDeviceName: blockdevice-8a5b69d8a2b23276f8daeac3c8179f9d # /dev/nvme1n1 100.0GiB - blockDeviceName: blockdevice-c21bc3b79a98c7e8508f47558cc94f36 # /dev/nvme10n1 100.0GiB - blockDeviceName: blockdevice-e5a1c3c1b66c864588a66d0a7ff8ca58 nodeSelector: kubernetes.io/hostname: node1 poolConfig: dataRaidGroupType: raidz # raidz2 failure example $ kubectl openebs generate cspc --nodes=minikube --raidtype=raidz2 raidz2 pool requires a minimum of 6 block device per node
$ kubectl openebs upgrade --cas-type cstor Fetching CSPC control plane and Data Plane Version Current Version: 2.12.0 Desired Version: 3.0.0 Previous job failed. Reason: BackoffLimitExceeded Creating a new Job with name: cstor-cspc-upgrade-vfn87 Creating Dry-run job... metadata: creationTimestamp: null generateName: cstor-cspc-upgrade- labels: cas-type: cstor name: cstor-cspc-upgrade namespace: openebs spec: backoffLimit: 4 template: metadata: creationTimestamp: null spec: containers: - args: - cstor-cspc - --from-version=2.12.0 - --to-version=3.0.0 - --v=4 - cstor-storage env: - name: OPENEBS_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace image: openebs/upgrade:3.0.0 imagePullPolicy: IfNotPresent name: upgrade-cstor-cspc-go resources: {} restartPolicy: OnFailure serviceAccountName: openebs-maya-operator status: {} Continue?: y Creating a batch job... Job Created successfully: ``` -
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$ kubectl openebs get bd NAME PATH SIZE CLAIMSTATE STATUS FSTYPE MOUNTPOINT minikube-2 ├─blockdevice-94312c16fb24476c3a155c34f0c211c3 /dev/sdb1 50 GiB Unclaimed Inactive ext4 /var/lib/kubelet/mntpt └─blockdevice-94312c16fb24476c3a155c34f0c2143c /dev/sdb1 50 GiB Claimed Active minikube-1 ├─blockdevice-94312c16fb24476c3a155c34f0c6153a /dev/sdb1 50 GiB Claimed Inactive zfs_member /var/openebs/zfsvol ├─blockdevice-8a5b69d8a2b23276f8daeac3c8179f9d /dev/nvme2n1 100 GiB Claimed Active └─blockdevice-e5a1c3c1b66c864588a66d0a7ff8ca58 /dev/nvme10n1 100 GiB Claimed Active minikube-3 └─blockdevice-94312c16fb24476c3a155c34f0c6199k /dev/sdb1 50 GiB Claimed Active
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