Preliminary Checklist

Issue the LISTALC STATUS command to see the names of all data sets allocated to SYSEXEC and SYSPROC.
To see what data sets are already defined to SYSEXEC and SYSPROC at your installation, issue the LISTALC command with the STATUS keyword.
```
READY
listalc status
```
You then see several screens of data set names that might look something like the following. Scroll until you find SYSEXEC and SYSPROC.
```
 --DDNAME---DISP--
 ICQ.INFOCTR.LOAD.
   STEPLIB  KEEP
 CATALOG.VTSO022
   SYS00006 KEEP,KEEP
 CATALOG.VTSO028
            KEEP,KEEP
 ISP.PHONE.EXEC
   SYSEXEC  KEEP
 ICQ.INFOCTR.ICQCLIB
   SYSPROC  KEEP
 SYS1.TSO.CLIST
            KEEP
 ISP.ISPF.CLISTS
            KEEP
```
In this example, one data set ISP.PHONE.EXEC is allocated to SYSEXEC, and three data sets ICQ.INFOCTR.ICQCLIB, SYS1.TSO.CLIST, and ISP.ISPF.CLISTS are allocated to SYSPROC. (When a space appears below the data set name, the data set is allocated to the previously-specified file (DDNAME)).
Write down the names of the data sets at your installation that are allocated to SYSEXEC.
- First data set: ______________________________________________
- Remaining data sets: ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________
Write down the names of the data sets at your installation that are allocated to SYSPROC.
- First data set: ______________________________________________
- Remaining data sets: ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________
Issue the LISTDS command for the first data set in each system file to display the record format, logical record length, and block size.
To see the attributes of data sets used at your installation, issue the LISTDS command for the first data set in each system file concatenation to display something like the following:
```
 READY
  LISTDS 'sysexec.first.exec'

  SYSEXEC.FIRST.EXEC
  --RECFM-LRECL-BLKSIZE-DSORG
    VB    255  5100    PO
  --VOLUMES--
    TSO026

 READY
  LISTDS 'sysproc.first.clist'

  SYSPROC.FIRST.CLIST
  --RECFM-LRECL-BLKSIZE-DSORG
    FB     80   19040    PO
  --VOLUMES--
    TSOL07
```
Write down the attributes of the first data set in your SYSEXEC concatenation.
- RECFM = ______________________________
- LRECL = ______________________________
- BLKSIZE = ______________________________
Write down the attributes of the first data set in your SYSPROC concatenation.
- RECFM = ______________________________
- LRECL = ______________________________
- BLKSIZE = ______________________________

Please Note

Save this information for use with the following checklists.