DevOps · Flashcard
What is the difference between an ephemeral volume and a persistent volume?
- AEphemeral volumes are tied to a Pod's lifetime, persistent volumes exist beyond it
- BEphemeral volumes are faster because they use in-memory storage, persistent volumes use slower disk
- CEphemeral volumes use RAM exclusively, while persistent volumes are always backed by physical disk
- DThere is no difference — both types persist data independently of the Pod's lifecycle
Why this is the answer
Ephemeral volumes (like emptyDir) are created and destroyed with the Pod. Persistent volumes (PVs) have a lifecycle independent of any Pod, preserving data across Pod restarts and rescheduling.
Official docs