Prefix
The first part of a transaction is a prefix that tells the system that this is a BDT transaction. The prefix you use depends on the type of terminal or console you are using: TSO, MCS, or JES3; and whether your system programmer has created any shortcuts for you (such as a special symbol or PF keys). Your system programmer can tell you what prefix to use. Table 1 shows the IBM-defined prefixes for transactions.
| Type of Console | Prefix in a Single-BDT Complex | Prefix in a Poly-BDT Complex |
|---|---|---|
| MCS | bdt-char |
same |
| JES3 | *S,BDT | *S,BDT,SY(node-name) |
| TSO | BDT | BDT SY(node-name) |
In Table 1:
- bdt-char is a special character (such as +) defined by your system programmer that routes the transaction directly to a specific system. Do not use a delimiter (a comma or a blank) after bdt-char. For information on defining bdt-char see z/OS BDT Installation.
- bdt-proc is the name of the cataloged procedure in SYS1.PROCLIB that is used to start BDT. It is optional.
- id is the installation-defined identifier used with F to identify BDT.
- SY(node-name) is the system parameter that indicates which BDT system should process the transaction. Include the parentheses as shown. There is an installation-defined default for this parameter.