Why does VM installation fail due to "unknown storage error"?

Solution Verified - Updated -

Issue

  • While trying to reinstall VM, installation failed. Error messages in RHEV-M portal console before failure were:
"VM vm-name has paused due to unknown storage error."

... followed by:

"VM vm-name has paused due to no Storage space error."

but the relevant storage domain has about 114 GB free space left. Preparation of reinstallation consisted of removal of the old disk and addition of a new one of size 35 GB (thin-provisioned) in the named storage domain, using RHEV-M portal.

Environment

  • Red Hat Enterprise Virtualization 3.1

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