Path diagnostic device, storage device, path diagnosis method and program

摘要

Problem to be solved: to provide a diagnosis method of an RDR path which does not consume the bandwidth of the Wan Channel more than necessary.A path diagnostic device is composed of aA diagnostic command is transmitted and received between the first storage device and the second storage deviceBased on the status of diagnostic commandsProvided with diagnostic means for diagnosing the path between the first storage device and the second storage deviceDiagnostic meansPath is in use;AndIn normal operation that is normalAs a diagnostic commandDiagnostic commands without payload dataDiagnostic commands with payload data andThe normal operation at the predetermined time is transmitted and transmitted.Diagram