OpenEBS中的数据存储在哪里？

Question

Setup -- OPENEBS version 0.6 I would like to know where OpenEBS stores data in Jiva. Where does it exactly store the data? Does it store locally on Kubernetes nodes mount path or on a disk attached to the pool.

Answer 1

It depends on the storage pool which is referred to in the storageclass. If the pool is "default" and the storage engine chosen is Jiva, then the storage space for volume replica data is carved out from the container image space of the replica pod itself ("/mnt/openebs_disk").

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apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: openebs-standard annotations: cas.openebs.io/config: | - name: ControllerImage value: openebs/jiva:0.7.0-RC2 - name: ReplicaImage value: openebs/jiva:0.7.0-RC2 - name: VolumeMonitorImage value: openebs/m-exporter:0.7.0-RC2 - name: ReplicaCount value: "1" - name: StoragePool value: default - name: FSType value: "xfs"

If the storage pool referred to in the storageclass is NOT "default", then it will be an external disk or group of disks that are mounted at a given path inside the replica pod