Action Option -CR (-CleanRequest) :

cleans requests by deleting all the files built under the request directories and the associated file records. Partitions are removed if a request is divided into partitions. File process count and request data size are also initialized to 0. Use this action to clean up the requests to allow them being rebuilt.

dsrqst	-(-CR|CleanRequest)
	-(RI|RequestIndex) RequestIndices
	[-(DB|Debug) DebugModeInfo]

It is mandatory to provide a request index to clean it.