# Error expanding volume: HTTP error 400

**URL:** <https://forums.portworx.com/t/error-expanding-volume-http-error-400/1782>\
**Category:** Portworx on Kubernetes\
**Created:** [September 22, 2023, 10:21pm UTC](https://forums.portworx.com/t/error-expanding-volume-http-error-400/1782 "2023-09-22T22:21:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jorgego](https://avatars.discourse-cdn.com/v4/letter/j/a587f6/32.png) [@jorgego](https://forums.portworx.com/u/jorgego)\
**Post date:** [September 22, 2023, 10:21pm UTC](https://forums.portworx.com/t/error-expanding-volume-http-error-400/1782/1 "2023-09-22T22:21:09Z")

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Hi. I am running Portworx on OpenShift. We are unable to expand a volume with error:

_**error expanding volume " … " of plugin “[kubernetes.io/portworx-volume](http://kubernetes.io/portworx-volume)”: HTTP error 400**_

Any tips on what could cause this error?

Thanks!