Effect of disabling activity keypointing

If you disable activity keypointing in your CICS region by specifying the system initialization parameter AKPFREQ=0, there is a serious effect on BWO support for non-RLS activities.

When activity keypointing is disabled, no tie-up records (TURs) are written to the forward recovery logs and the data set recovery point is not updated. Therefore, forward recovery of a BWO backup must take place from the time that the data set was first opened for update. This requires that all forward recovery logs are kept since that time so that forward recovery can take place. If there are many inserts or records that change length, a lot of forward recovery could be required. If, however, a record is just updated and the length is unchanged, there is no CI split.

For information about TURs and recovery points, see BWO and concurrent copy .