CSI Drivers

The CSI Drivers by Dell EMC implement an interface between CSI (CSI spec v1.5) enabled Container Orchestrator (CO) and Dell EMC Storage Arrays. It is a plug-in that is installed into Kubernetes to provide persistent storage using Dell storage system.

CSI Architecture

Features and capabilities

Supported Operating Systems/Container Orchestrator Platforms

	PowerMax	PowerFlex	Unity	PowerScale	PowerStore
Kubernetes	1.20, 1.21, 1.22	1.20, 1.21, 1.22	1.20, 1.21, 1.22	1.20, 1.21, 1.22	1.20, 1.21, 1.22
RHEL	7.x,8.x	7.x,8.x	7.x,8.x	7.x,8.x	7.x,8.x
Ubuntu	20.04	20.04	18.04, 20.04	18.04, 20.04	20.04
CentOS	7.8, 7.9	7.8, 7.9	7.8, 7.9	7.8, 7.9	7.8, 7.9
SLES	15SP3	15SP3	15SP3	15SP3	15SP3
Red Hat OpenShift	4.8, 4.8 EUS, 4.9	4.8, 4.8 EUS, 4.9	4.8, 4.8 EUS, 4.9	4.8, 4.8 EUS, 4.9	4.8, 4.8 EUS, 4.9
Mirantis Kubernetes Engine	3.4.x	3.4.x	3.4.x	3.4.x	3.4.x
Google Anthos	1.6	1.8	no	1.9	1.9
VMware Tanzu	no	no	NFS	NFS	NFS
Rancher Kubernetes Engine	yes	yes	yes	yes	yes

CSI Driver Capabilities

Features	PowerMax	PowerFlex	Unity	PowerScale	PowerStore
CSI Specification	v1.5	v1.5	v1.5	v1.5	v1.5
Static Provisioning	yes	yes	yes	yes	yes
Dynamic Provisioning	yes	yes	yes	yes	yes
Expand Persistent Volume	yes	yes	yes	yes	yes
Create VolumeSnapshot	yes	yes	yes	yes	yes
Create Volume from Snapshot	yes	yes	yes	yes	yes
Delete Snapshot	yes	yes	yes	yes	yes
Access Mode	RWO (FC/iSCSI) RWO/ RWX/ ROX (Raw block)	RWO RWO/ RWX/ ROX/ RWOP (Raw block)	RWO/RWOP (FC/iSCSI) RWO/RWX/ RWOP (RawBlock) RWO/RWX/ROX/ RWOP (NFS)	RWO/RWX/ROX/ RWOP	RWO/RWOP (FC/iSCSI) RWO/ RWX/ ROX/ RWOP (RawBlock, NFS)
CSI Volume Cloning	yes	yes	yes	yes	yes
CSI Raw Block Volume	yes	yes	yes	no	yes
CSI Ephemeral Volume	no	yes	yes	yes	yes
Topology	yes	yes	yes	yes	yes
Multi-array	yes	yes	yes	yes	yes
Volume Health Monitoring	no	yes	yes	yes	yes

Supported Storage Platforms

	PowerMax	PowerFlex	Unity	PowerScale	PowerStore
Storage Array	5978.479.479, 5978.669.669, 5978.711.711, Unisphere 9.2	3.5.x, 3.6.x	5.0.5, 5.0.6, 5.0.7, 5.1.0	OneFS 8.1, 8.2, 9.0, 9.1, 9.2, 9.3	1.0.x, 2.0.x

Backend Storage Details

Features	PowerMax	PowerFlex	Unity	PowerScale	PowerStore
Fibre Channel	yes	N/A	yes	N/A	yes
iSCSI	yes	N/A	yes	N/A	yes
NFS	N/A	N/A	yes	yes	yes
Other	N/A	ScaleIO protocol	N/A	N/A	N/A
Supported FS	ext4 / xfs	ext4 / xfs	ext3 / ext4 / xfs / NFS	NFS	ext3 / ext4 / xfs / NFS
Thin / Thick provisioning	Thin	Thin	Thin/Thick	N/A	Thin
Platform-specific configurable settings	Service Level selection iSCSI CHAP	-	Host IO Limit Tiering Policy NFS Host IO size Snapshot Retention duration	Access Zone NFS version (3 or 4);Configurable Export IPs	iSCSI CHAP