Allocating data sets to your TSO session

A table that shows the data sets that you must allocate to the TSO session to run the CICS® VR ISPF dialog interface.

Table 1. ISPF dialog data sets
ddname CICS® VR Created by
DWWCON1 CICS® VR recovery control data set See Note 5.
DWWCON2 CICS® VR recovery control data set See Note 5.
DWWCON3 CICS® VR recovery control data set See Note 5.
DWWMSG CICS® VR message data set See Note 1.
DWWPRINT CICS® VR report data set See Note 2.
DWWLLIB Load Library See Note 4.
DWWSLIB JCL skeleton library See Note 4.
ISPFILE File tailoring output and your JCL skeleton Your existing ISPF data set. See note 3.
ISPLLIB Load library
ISPMLIB Message library
ISPPLIB Panel library
ISPPROF User-session defaults, read/write tables Your existing ISPPROF data set.
ISPSLIB JCL skeleton library See Note 3.
ISPTLIB Read tables (default)
DWWDUMP CICS® VR diagnostics data set See Note 6
DWWDMSG CICS® VR prolog and epilog data set See Note 6
Note:
  1. DWWMSG defines the output data set that contains the CICS® VR messages. Use a different data set name than the one used on this system by the CICS® VR server address space.

    The DCB parameters for this data set are RECFM=FBA and LRECL=133. The block size can be provided on the DWWMSG DD statement and must be a multiple of 133. The default is 27930.

  2. DWWPRINT defines the report data set that contains the reports produced by CICS® VR. Use a different data set name than the one used on this system by the CICS® VR server address space.
  3. Ensure that the library containing your own CICS® VR JCL skeletons is allocated to both the ISPSLIB and ISPFILE DD statements.
  4. Since CICS® VR uses LMFIND to locate a member in ISPLLIB and ISPSLIB, only four data sets can be concatenated in these libraries. Since this might be a problem for some users, CICS® VR supports alternate names: DWWLLIB for ISPLLIB and DWWSLIB for ISPSLIB. CICS® VR uses DWWLLIB in place of ISPLLIB and DWWSLIB in place of ISPSLIB.
  5. DWWDMSG and DWWDUMP define the output data sets to which CICS® VR writes diagnostics and abend information. If these data sets are not allocated, this information is unavailable.