7. RETURN CODES AND MESSAGES

 VCC produces return codes or error messages for every error
 it encounters.  It writes messages to the SYSPRINT, VCCSTATS,
 VCCVTMSG, VCCVSMSG, or VCCHSMSG DDnames in the following
 format:

 VCCnnnns   message_text
 or
 VCCmmnns   message_text

 where:

 mm is a two-character value defining the VCC module that
 issued the error message.  These values are:

    BC - VCCVBCS
    BL - VCCBLDVT
    CN - VCCNTRL
    HS - VCCXHSM
    PR - VCCPARSE
    SC - VCCVSCAN
    SM - VCCXSMS
    VC - VCCVCNTL
    VD - VCCVVDS
    VS - VCCVVSAM
    VT - VCCVTOC
    XD - VCCDIAG

 nn or nnnn  is the identifying number of the message.

 s is the severity level of the message.  The values are:

   I  - Informational message
   W  - Warning message
   E  - Critical error message
   A  - Console operator action/response message

 Definitions of the error messages are in Section 7.2.  They
 are organized in alphabetical order (ignoring the severity
 level character of the message identifier).

 More detailed information is available in the following
 subsections:

     1 - Return Codes Description
     2 - Messages Description