Compatibility with Huawei Distributed Storage

Huawei CSI plug-in is compatible with Huawei OceanStor series distributed storage systems. The following table lists the supported storage versions.

Supported Huawei Distributed Storage

Table 1 Supported Huawei distributed storage

Storage Product	Version
FusionStorage Block	8.0.1
OceanStor Pacific series	8.1.0, 8.1.1, 8.1.2, 8.1.3, 8.1.5, 8.2.0

Huawei CSI plug-in supports the following features for Huawei distributed storage.

Table 2 Features supported by Huawei distributed storage and constraints

Feature	FusionStorage Block	OceanStor Pacific Series
Static Provisioning	SAN: iSCSI/SCSI	SAN: iSCSI/SCSI NAS: DPC²/NFS 3/4.1³
Dynamic Provisioning
Manage Provisioning¹
Expand Persistent Volume⁴	Volumes created in Dynamic Provisioning or Manage Provisioning mode are supported.
Create VolumeSnapshot	SAN volumes created in Dynamic Provisioning or Manage Provisioning mode are supported.
Delete VolumeSnapshot	Supported	Only SAN volume snapshots are supported.
Restore VolumeSnapshot	Supported	Only SAN volume snapshots are supported.
Clone Persistent Volume	SAN volumes created in Dynamic Provisioning or Manage Provisioning mode are supported.
Raw Block Volume	Only SAN volumes are supported.	Only SAN volumes are supported.
Topology	Supported	Supported
Generic Ephemeral Inline Volumes	Supported	Supported
Access Mode	RWO/ROX/RWOP: supported by all types of volumes. RWOP is supported only by Kubernetes 1.22 and later versions. RWX: supported only by Raw Block volumes and NFS volumes.
QoS	Supported	Supported
Soft and hard quotas	Not supported	Only NAS volumes are supported.
Storage multi-tenant	Not supported	Only NAS volumes are supported.

Note 1: Manage Provisioning is a volume management feature customized by Huawei CSI. This feature allows existing storage resources to be managed by Kubernetes. You are not allowed to manage a storage resource for multiple times and concurrently delete or create a storage resource.
Note 2: Only OceanStor Pacific series 8.1.2 and later versions support DPC. When DPC is used, the OS must meet the requirements for the OSs supported by Huawei CSI and the DPC basic connectivity requirements of OceanStor Pacific series.
Note 3: Only OceanStor Pacific series 8.1.2 and later versions support NFS 4.1. OceanStor Pacific series 8.2.0 and later versions support NFS over RDMA. When NFS over RDMA is used, only NFS 3 is supported.
Note 4: The provisioned PVC whose volumeType is lun and accessModes is ReadOnlyMany does not support capacity expansion.