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M204.0462  Trouble with disk I​/​O on file fileName

An error was encountered while trying to write a file page from a disk buffer to disk. Model 204 will take a snap dump and attempt to continue processing.

Response: Note any requests entered immediately before receiving the message. One common cause of this message is attempting to open a Model 204 file before creating it. Notify your system manager.

System manager response: Once you have verified that you are not having hardware problems and a user error has not occurred, contact Technical Support and have the following documentation ready:

  • Audit trail
  • Snap dump(s)
  • SOUL request for the user who received the message

Message attributes:

RETCODEO=96Sets online return code
RETCODEB=96Sets batch (single user) return code
CLASS=EError class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter
AUDITADWrites the message with line type AD to the audit trail
NOCOUNTDoes not increment the error count (ERCNT) parameter
SNAPGenerates a CCASNAP for the run
DUMPGenerates a SYSUDUMP for the entire Model 204 region

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