esx.problem.scsi.apd.event.descriptor.alloc.failed
Summary
No memory to allocate APD (All Paths Down) event subsystem.
This event is from a subset that specifically concerns SCSI device issues.
Causes
There is an issue with the configuration or availability of this attached SCSI device.
Resolutions
See the event description for more detailed information specific to this event. Review the VMware online document vSphere Troubleshooting Guide for more assistance.
External
Refer to the VMware Online Documentation for more information on vCenter event messages and possible solutions.