OOF Hardware errors are being received on V~/370 paging device(s).
The wait state that causes this code is preceded by message DMKPAG415E CONTINUOUS PAGING ERRORS FRO~ DASDxxx 010 The SYSRES device, on which DMKSAV is attempting to write a page
image copy of the nucleus, is not mounted or not ready. 011 An unrecoverable error, other than a machine check, occurred while DMKSAV attempted to write a page image cOFY of the nucleus on the SYSRES device. 012 The normal wait state code loaded by D~KSAV when it has completed
loading the nucleus. 013 The machine check handler encountered an unrecoverable error on
the attache~_pro~essor. Probable hardware error. 015 A SIGP issued to the attached processor during system initialization by DMKCPI or DMKAPI was unsuccessful. 027 An unrecoverable I/O error occurred or system input is incorrect. CP Diagnostic lids 1-405

CP Abend Codes
The CP abends, their causes and required actions are listed in the !~~ !ML31Q Sys!~~ ~essag~§. 1-406 IBM VM/370 Syste. Logic and Problem Deteraination--Volu.e 1