SAP Note 425207 - SAP memory management, current parameter ranges

Component : Memory Management -

Solution : https://service.sap.com/sap/support/notes/425207 (SAP Service marketplace login required)

Summary :
The SAP Note clarifies the maximum parameter values for SAP memory management across various kernel releases. It details settings for parameters such as ztta/roll_extension, abap/heap_area_dia, and ES/SHM_USER_COUNT, specifying limits based on 32-bit and 64-bit systems. Differences in parameter limits are outlined for releases below 46D, 46D, and major releases 640, 700, and 710. Each release consists of specific boundaries for memory-related parameters which are critical for system performance and stability, ensuring operations adhere to optimal configurations. The note highlights the evolution in parameter setting capabilities, transitioning from stringent limits in older versions to more flexible settings in newer releases.

Key words :
ztta/roll_extension      <2gb                <2gbabap/heap_area_total    <2gb                 <2gb                                0 = unlimited            remark 5, ztta/roll_extension      <2gb              unlimitedabap/heap_area_total        64-bit float, es/shm_max_priv_segs solution current parameter settings, dia  <2gb                 <2gb                                0 = unlimited            remark 5, dia  <2gb                 <2gb                                0 = 1 terabyte           remarks 5, ztta/roll_extension      <2gb                  <4gb    remark 5, abap/heap_area_total        64-bit float, 32-bit               64-bit releases lower, /3 8000                          os  4096            os  unlimitedes/shm_user_count, os   4096            os  unlimitedes/shm_user_count

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