// Module included in the following assemblies:
//
// * storage/generic-ephemeral-vols.adoc
//* microshift_storage/generic-ephemeral-volumes-microshift.adoc

:_mod-docs-content-type: CONCEPT
[id="generic-ephemeral-vols-overview_{context}"]
= Overview of generic ephemeral volumes

[role="_abstract"]
Generic ephemeral volumes support network-attached storage, size limits, initial data population, and operations like cloning and snapshotting for temporary storage, with some driver-specific limitations.

Generic ephemeral volumes have the following features:

* Storage can be local or network-attached.

* Volumes can have a fixed size that pods cannot exceed.

* Volumes might have some initial data, depending on the driver and parameters.

* Typical operations on volumes are supported, assuming that the driver supports them, including snapshotting, cloning, resizing, and storage capacity tracking.

[NOTE]
====
Generic ephemeral volumes do not support offline snapshotting and resizing.

ifndef::openshift-dedicated,openshift-rosa,openshift-rosa-hcp,microshift[]
Due to this limitation, the following Container Storage Interface (CSI) drivers do not support the following features for generic ephemeral volumes:

* Azure Disk CSI driver does not support resize.

* Cinder CSI driver does not support snapshot.
endif::openshift-dedicated,openshift-rosa,openshift-rosa-hcp,microshift[]
====
