esx.problem.iorm.badversion
Summary
Host cannot participate in Storage I/O Control (SIOC) on datastore.
Causes
The version number of the SIOC agent on this host is incompatible with number of its counterparts on other hosts connected to this datastore.
Resolutions
Review VMware online documents such as Troubleshooting Storage I/O Control for information on supported configuration.
External
Refer to the VMware Online Documentation for more information on vCenter event messages and possible solutions.