Resolving the "Multi-Attach error for volume" error

Issue descriptionIssue description

When trying to use a persistent volume on multiple pods at once, you see this error:

• Multi-Attach error for volume "<volume-name>" Volume is already used by pod(s) <pod1>, <pod2>;
• Multi-Attach error for volume "<volume-name>" Volume is already exclusively attached to one node and can't be attached to another.

SolutionSolution

By default, storage classes that are based on network disks are delivered with the cluster, and they do not support multiple access mode. We provide more details about this in our documentation. This is a limitation of our driver. You cannot use it for multiple access, even if you create your own storage class based on it.

Such errors can also occur if the pods that should use the volume are located on different nodes.

If you need to use ReadWriteMany, we recommend using CSI for our object storage because the volumes based on it support this access mode:

Automatic installation via the marketplace or Helm chart is described here, and manual integration is described here.

If the issue persistsIf the issue persists

If the actions described above did not help solve the issue, you can try to organize storage on your own. Some of the possible solutions also support multiple access (for example, nfs or CEPH). You can read more about this in the k8s official documentation.