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LSR for alternate index access option

With the LSR for alternate index (AIX) option, you can indicate whether VSAM files with alternate indexes are eligible for optimization.

Warning

Note

If ddname or data set name sharing is in effect for a group of data sets intercepted by Data Optimizer, the first opener creates the LSR pool. Subsequent openers sharing the pool use the values established by the first opener.

Parameter

Description

Values

This option has the following possible values:

  • Y - Allow processing of alternate index data sets.

    Warning

    Note

    When AIXLSR is specified and LSR processing is used for an alternate index, buffer values calculated by Data Optimizer or specified by the user are for the base cluster associated with the path. In addition, Data Optimizer assigns extra buffers for processing the alternate index associated with the path under which the ACB was opened and for any members of the upgrade set.

  • N - Do not allow processing of alternate index data sets.

    Warning

    Note

    When NOAIXLSR is specified and NSR processing is used for an alternate index, the buffer values calculated by Data Optimizer or specified by the user apply only to the AIX associated with the path. VSAM automatically assigns a minimal number of buffers for accessing the base cluster and any members of the upgrade set.

Default value

N

DD overrides

//DAP@AIX DD DUMMY

Allow processing of alternate index data sets. This override is available at both step and ddname levels.

//DAP@NAIX DD DUMMY

Do not allow processing of alternate index data sets. This override is available at both step and ddname levels.

Warning

Note

The following DD overrides are HIPER-CACHE compatibility ddnames. These overrides are added to ease the transition from HIPER-CACHE to Data Optimizer. If you are converting from HIPER-CACHE, you can continue to use these DD overrides in Data Optimizer; however, you should change them to //DAP@ DD overrides as time permits.

//VVHCAIXY DD DUMMY

Allow processing of alternate index data sets. This override is only available at the step level.

//VVHCAIXN DD DUMMY

Do not allow processing of alternate index data sets. This override is only available at the step level.

Data policy keywords

AIXLSR

NOAIXLSR

Related topic

    VSAM-options


 

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BMC AMI Batch Optimizer (Advanced and Standard) 2.9