The quarterly update for Dell CSI Drivers & Dell Container Storage Modules (CSM) is there !
- CSM Features
- CSI features
- Useful links
New CSM operator!
The Dell Container Storage Modules (CSM) are modules that aim to add data services and features that are not in the scope of the CSI specification today. With an ever-growing ecosystem and added features, the deployment of a driver and affiliated modules needs to be carefully studied before beginning the deployment.
The new operator goals are to :
- Be a one-stop-shop for all Dell CSI driver and Container Storage Modules deployment
- Ease the install and upgrade operations
- Leverage the Operator framework to give a clear status on the deployment of the resources
- Be certified by RedHat Openshift
In the short/middle term, the CSM Operator will deprecate the experimental CSM Installer.
Replication support with PowerScale
For disaster recovery protection, PowerScale implements the data replication between appliances via the feature named SyncIQ.
The SyncIQ replicates the data between two sites, one being read-write while the other is read-only ; just like with different Dell storage backends with async or sync replication.
The role of the CSM replication module and underlying CSI driver will be to provision the volume within Kubernetes clusters and prepare the export configurations, quotas, etc..
The CSM Replication for PowerScale has been designed and implemented in such a way that it won’t collide with your existing Superna Eyeglass DR utility.
A live-action demo will be posted soon on : https://www.youtube.com/user/itzikreich/
This release gives for every driver the:
- Support of OpenShift 4.9
- Support of Kubernetes 1.23
- Support of CSI Spec 1.5
- Update latest UBI-minimal image
- Support of
Kubernetes v1.19 introduced the
fsGroupPolicy to give more control to the CSI driver over the permission sets in the
There are three possible options :
None; which means the
fsGroupdirective from the
securityContextwill be ignored
File; which means the
fsGroupdirective will be applied on the volume ; that is the default setting for NAS systems like PowerScale or Unity-File
ReadWriteOnceWithFSType; which means the
fsGroupdirective will be applied on the volume if it has
fsTypedefined and is
ReadWriteOnce; that is the default setting for block systems like PowerMax, PowerStore-Block, etc.
In all cases, Dell CSI drivers let
kubelet do the change ownership operations and do not do it at the driver level.
Standalone Helm install
Drivers for PowerFlex and Unity can now be installed with the help of the install scripts we provide under
Standalone helm chart helps to easily integrate it with the agent for Continuous Deployment like Flux or Argo CD.
Note that to ensure you install the driver on the supported Kubernetes version, the helm charts take advantage of the
kubeVersion field. This field is clunky with Kubernetes distribution using labels in
kubectl version (e.g.
Volume Health Monitoring support
Drivers for PowerFlex and Unity implement the Volume Health Monitoring.
That feature being in alpha in Q1-2022, is disabled by default.
Once enabled, the drivers will expose the standard storage metrics like capacity usage, inode usage, etc. through, the Kubernetes
The metrics will flow natively in popular dashboards like the ones built-in Openshift Monitoring:
Pave the road for full opensource!
Every Dell Drivers and dependencies like gopowerstore, gobrick, and more are now all on Github and will be fully open-sourced.
The umbrella project is and remains https://github.com/dell/csm, from which you can open tickets, see the roadmap, etc.
Google Anthos 1.9
The partnership with Google continues, and the latest CSI drivers for PowerScale & PowerStore support Anthos v1.9.
NFSv4 POSIX and ACL support
Both CSI PowerScale and now PowerStore allows setting the default permission for the newly created volume.
You can use POSIX octal notation or ACL.
In PowerScale, you can use plain ACL or the built-in values like :
public or custom ones; and in PowerStore you can use the custom ones like :
A::[email protected]:RWX,A::[email protected]:RWX,
A::[email protected]:rxtncy, etc.
For more details you can :
- Watch CSM demos on our VP Youtube channel : https://www.youtube.com/user/itzikreich/
- Read the FAQs
- Subscribe to Github notification and be informed of the latest releases on: https://github.com/dell/csm
- Ask for help or chat with us on Slack