Examine the command output (if available) and the daemon and reqlib debug logs for a more detailed message on the error.

See "Setting Media Manager debug logging to a higher level" in the NetBackup Logging Reference Guide.

Identify the system where vmd is running. The system is usually termed the Media Manager host or the EMM server and it defaults to the local system in some user interfaces. Possible causes for the error are a high network load, missing operating system patches or service packs, or an unexpected vmd process failure. Also, the socket read may have failed because the requested operation did not complete within a specified time period. The robotic process and vmd interactions can affect some requests to vmd; check the system log for errors on the robotic control host.