Plan for the new default format level of HBB7705 in the IXCL1DSU utility
Description
Starting in z/OS V2R2, system logger uses a new default NUMBER() value for the SMDUPLEX item when using the XCF couple data set format utility (IXCL1DSU) to format a LOGR CDS.
The SMDUPLEX item NUMBER(1) is now the default value when running the IXCL1DSU utility on a z/OS V2R2 or higher release level and results in a LOGR CDS format level of HBB7705.
The
LOGR CDS format level is managed as follows:
- HBB7705
- Indicates that the LOGR CDS was formatted at one of the following
sets of release level ranges and options:
- z/OS V2R2 or later when the ITEM NAME(SMDUPLEX) specification is not provided
- z/OS V1R2 or later with option NUMBER(1) specified for item name SMDUPLEX
- HBB6603
- Indicates that the LOGR CDS was formatted at one of the following
sets of release level ranges and options:
- OS/390 V1R3 or later, through OS/390 V2R10 and z/OS V1R1
- z/OS V1R2 or later, through z/OS V2R1, without option NUMBER(1) for item name SMDUPLEX
- z/OS V1R2 or later with option NUMBER(0) specified for item name SMDUPLEX
- HBB5520
- Indicates that the LOGR CDS was formatted at a release level before OS/390 V1R3.
Table 1 provides more details about this migration action. Use this information to plan your changes to the system.
| Element or feature: | BCP. |
|---|---|
| When change was introduced: | z/OS V2R2. |
| Applies to migration from: | z/OS V2R1 and z/OS V1R13. |
| Timing: | After the first IPL of z/OS V2R2. |
| Is the migration action required? | Yes, if you intend on using the IXCL1DSU format couple data set utility on any z/OS V2R2 level systems. |
| Target system hardware requirements: | None. |
| Target system software requirements: | None. |
| Other system (coexistence or fallback) requirements: | None. |
| Restrictions: | None. |
| System impacts: | None. |
| Related IBM® Health Checker for z/OS® check: | None. |
Steps to take
Plan to make use of the default HBB7705 LOGR CDS format level or take steps to format a different LOGR CDS level.
Reference information
For more information,
see the following references:
- For information about using the IXCL1DSU format couple data set utility for system logger, see the "LOGR parameters for format utility" section of z/OS MVS Setting Up a Sysplex.
- For considerations on the system logger functions that are supported using the different LOGR CDS format levels, see the "LOGR couple data set versioning - new format levels" section of z/OS MVS Setting Up a Sysplex.