| statements: | PU |
| dependencies: | LUGROUP |
Provides a 1–8 character pattern name that the SDDLU exit routine uses to generate an LU name when dynamically defining an LU.
If you use the IBM-supplied SDDLU exit routine, this operand
is required and must have the following format:
- The first character must be either alphabetical or one of the national characters (@ or $).
- The remaining characters can be either alphabetical, numerical, or national.
- There must be either two or three contiguous national # characters in the name. These characters represent holders, in which the logical unit's local address is substituted when an LU's name is generated. If you specify three # characters, the LU's logical address is substituted in decimal for the # characters. If you specify two # characters, the LU's logical address is substituted in hexadecimal for the # characters.
When used with a user-written SDDLU exit routine, this operand is optional and there are no restrictions on its format. For more information on the SDDLU exit, see z/OS Communications Server: SNA Customization.
This operand is valid only when you code the LUGROUP operand.