Check after installation¶
The examples below are from a 4-node Kubernetes cluster.
$ kubectl get no
NAME STATUS ROLES AGE VERSION
k8s-master-1 Ready master 82d v1.24.3-2+63243a96d1c393
k8s-worker-1 Ready worker 36d v1.24.3-2+63243a96d1c393
k8s-worker-2 Ready worker 59d v1.24.3-2+63243a96d1c393
k8s-worker-3 Ready worker 36d v1.24.3-2+63243a96d1c393
Check Pods¶
Run the following command to check hwameistor related pods.
$ kubectl -n hwameistor get pod
NAME READY STATUS RESTARTS AGE
hwameistor-local-disk-csi-controller-665bb7f47d-6227f 2/2 Running 0 30s
hwameistor-local-disk-manager-5ph2d 2/2 Running 0 30s
hwameistor-local-disk-manager-jhj59 2/2 Running 0 30s
hwameistor-local-disk-manager-k9cvj 2/2 Running 0 30s
hwameistor-local-disk-manager-kxwww 2/2 Running 0 30s
hwameistor-local-storage-csi-controller-667d949fbb-k488w 3/3 Running 0 30s
hwameistor-local-storage-csqqv 2/2 Running 0 30s
hwameistor-local-storage-gcrzm 2/2 Running 0 30s
hwameistor-local-storage-v8g7t 2/2 Running 0 30s
hwameistor-local-storage-zkwmn 2/2 Running 0 30s
hwameistor-scheduler-58dfcf79f5-lswkt 1/1 Running 0 30s
hwameistor-webhook-986479678-278cr 1/1 Running 0 30s
Info
local-disk-manager and local-storage are DaemonSet. There should be a DaemonSet Pod on each Kubernetes node.
Check StorageClass¶
After creating the StorageClass, run the following command:
$ kubectl get storageclass hwameistor-storage-disk-hdd
NAME PROVISIONER RECLAIMPOLICY VOLUME BINDING MODE ALLOW VOLUME EXPANSION AGE
hwameistor-storage-disk-hdd disk.hwameistor.io Delete WaitForFirstConsumer true 4m29s
Check API¶
Run the following command to create an API through HwameiStor CRD.
NAME SHORTNAMES APIVERSION NAMESPACED KIND
localdiskclaims ldc hwameistor.io/v1alpha1 false LocalDiskClaim
localdisknodes ldn hwameistor.io/v1alpha1 false LocalDiskNode
localdisks ld hwameistor.io/v1alpha1 false LocalDisk
localdiskvolumes ldv hwameistor.io/v1alpha1 false LocalDiskVolume
localstoragenodes lsn hwameistor.io/v1alpha1 false LocalStorageNode
localvolumeconverts lvconvert hwameistor.io/v1alpha1 true LocalVolumeConvert
localvolumeexpands lvexpand hwameistor.io/v1alpha1 false LocalVolumeExpand
localvolumegroupconverts lvgconvert hwameistor.io/v1alpha1 true LocalVolumeGroupConvert
localvolumegroupmigrates lvgmigrate hwameistor.io/v1alpha1 true LocalVolumeGroupMigrate
localvolumegroups lvg hwameistor.io/v1alpha1 true LocalVolumeGroup
localvolumemigrates lvmigrate hwameistor.io/v1alpha1 true LocalVolumeMigrate
localvolumereplicas lvr hwameistor.io/v1alpha1 false LocalVolumeReplica
localvolumes lv hwameistor.io/v1alpha1 false LocalVolume
Check LocalDiskNode and LocalDisks¶
HwameiStor automatically scans each node and registers each data disk as CRD LocalDisk(ld). Unused data disks are shown as PHASE: Unclaimed.
Run the following command to see the nodes with LocalDisk:
$ kubectl get localdisknodes
NAME TOTALDISK FREEDISK
k8s-master-1 5 3
k8s-worker-1 5 2
k8s-worker-2 5 2
k8s-worker-3 5 2
$ kubectl get localdisks
NAME NODEMATCH CLAIM PHASE
k8s-master-1-sda k8s-master-1 Inuse
k8s-worker-1-sda k8s-worker-1 Inuse
k8s-worker-1-sdb k8s-worker-1 Unclaimed
k8s-worker-1-sdc k8s-worker-1 Unclaimed
k8s-worker-2-sda k8s-worker-2 Inuse
k8s-worker-2-sdb k8s-worker-2 Unclaimed
k8s-worker-2-sdc k8s-worker-2 Unclaimed
k8s-worker-3-sda k8s-worker-3 Inuse
k8s-worker-3-sdb k8s-worker-3 Unclaimed
k8s-worker-3-sdc k8s-worker-3 Unclaimed
(Optional) Check DRBD installation¶
The drbd-adapter Pod needs to be running on each worker node:
$ kubectl -n hwameistor get po -l k8s-app=drbd-adapter -o wide
NAME READY STATUS RESTARTS AGE IP NODE
drbd-adapter-4rndg 1/1 Running 0 9h 10.6.254.22 k8s-worker-2
drbd-adapter-bpprj 1/1 Running 0 9h 10.6.254.21 k8s-worker-1
drbd-adapter-n52w4 1/1 Running 0 9h 10.6.254.24 k8s-worker-4
drbd-adapter-rs9zk 1/1 Running 0 9h 10.6.254.25 k8s-worker-5
drbd-adapter-zc882 1/1 Running 0 9h 10.6.254.23 k8s-worker-3
On each worker node, the DRBD kernel module must be loaded, for example on node k8s-worker-1:
[root@k8s-worker-1 ~]$ lsmod | grep ^drbd
drbd_transport_tcp 22227 0
drbd 606840 1 drbd_transport_tcp
# cat /proc/drbd
version: 9.0.32-1 (api:2/proto:86-121)
GIT-hash: 7d2933d5a3764fcc5e0bf54b71fd9cfb0363be1a build by @4904565a901d, 2022-09-07 08:53:17
Transports (api:17): tcp (9.0.32-1)