Marking severity as high as the signal from etcdBackendQuotaLowSpace could have helped a customer from having disruption.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (OpenShift Container Platform 4.6.31 bug fix update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.