ASYNCBRING Enablement - IFS SAV Performance at V6R1Mx and V7R1M0

Asynchronous bring. Specify whether objects should be asynchronously brought into memory during the save processing. Depending on the directory tree structure, the amount of memory available, and the number of objects which qualify for the save, asynchronously bringing the objects may improve save performance. The best performance improvement may be seen with a well balanced directory tree in which all objects qualify for the save. In situations where a large number of objects reside in a single directory, few objects qualify for the save, or the system is memory constrained, performance may degrade with ASYNCBRING(*YES) specified. The default is *NO. The possible values are as follows:

o *NO Asynchronous bring is not done.
o *YES Asynchronous brings are done

MF53846
SI46711 <- This PTF now supercedes SI44587
SI44589
SI44739 <- S/R PTF containing the key cover letter for the customer (PTF is approved)
SI47800 <- This PTF now supersedes SI44739
SI44709 <- BRMS PTF that supports ASYNCBRING
SI47038 <- This PTF now supersedes SI44709

Prior to ordering these PTFs, the customer should order and install the latest available superseded PTF(s):

o SI43749
o SI43838

Installing the superseded PTF(s) is required to ensure the PTF can be properly removed (if needed) and to prevent the PTF from being permanently applied by the system due to requisite PTF processing.

MF53847
SI46711 <- This PTF now supersedes SI44587
SI44589
SI44739 <- S/R PTF containing the key cover letter for the customer (PTF is approved)
SI47800 <- This PTF now supersedes SI44739
SI44709 <- BRMS PTF that supports ASYNCBRING
SI47038 <- This PTF now supersedes SI44709

Prior to ordering these PTFs, the customer should order and install the latest available superseded PTF(s):

o SI43749
o SI43838

Installing the superseded PTF(s) is required to ensure the PTF can be properly removed (if needed) and to prevent the PTF from being permanently applied by the system due to requisite PTF processing.

MF53848
SI44588
SI45693 <- This PTF now supersedes SI44588
SI44590
SI44688 <- S/R PTF containing the key cover letter for the customer (PTF is approved)
SI46812 <- This PTF now supersedes SI44688
SI44710 <- BRMS PTF that supports ASYNCBRING
SI45327 <- This PTF now supersedes SI44710

Prior to ordering these PTFs, the customer should order and install the latest available superseded PTF(s):
o SI43750
o SI44528

Installing the superseded PTF(s) is required to ensure the PTF can be properly removed (if needed) and to prevent the PTF from being permanently applied by the system due to requisite PTF processing.

Note: There are additional steps required to enable the ASYNCBRING enhancement for BRMS save operations. This is documented in the BRMS PTF cover letter, Item 13:

In V6R1 and above, override support for the new ASYNCBRING key on the QsrSave API to help improve IFS save performance is now possible using one of the following commands:
(Important Note: Enter the commands in uppercase only.)

To enable the new ASYNCBRING key:
CALL PGM(QBRM/Q1AOLD) PARM('PARMOVR' '*ADD' 'ASYNCBRING' '*YES')

To disable the new ASYNCBRING key:
CALL PGM(QBRM/Q1AOLD) PARM('PARMOVR' '*ADD' 'ASYNCBRING' '*NO ')

To remove the override, use the following command (default is *NO):
CALL PGM(QBRM/Q1AOLD) PARM('PARMOVR' '*REMOVE ' 'ASYNCBRING')

To show the current override being used, use the following command:
CALL PGM(QBRM/Q1AOLD) PARM('PARMOVR' '*DISPLAY' 'ASYNCBRING')