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Note 398665 - How does the liveCache < 7.4 use PSE36/AWE

Header
Version / Date 10 / 2003-04-04
Priority Recommendations/additional info
Category Customizing
Primary Component BC-DB-LVC liveCache
Secondary Components

Summary
Symptom

You want to know how the liveCache in versions < 7.4 uses the extended memory (PSE36 under Windows NT / AWE under Windows 2000).
For version 7.4, please refer to Note 561338.

Other terms

liveCache, AWE, PAE, PSE36, Windows NT, memory, Windows 2000

Reason and Prerequisites
  • Windows NT 4.0 Enterprise Edition
    • more than 4GB RAM
    • Intel PSE36 driver installed
  • Windows 2000
    • more than 4GB RAM
    • PAE / AWE was activated on OS side
    • if the liveCache service should not run under the SYSTEM account, the following right should be granted to the relevant account:
            local security policy ->
                  local policies ->
                        user right assignement ->
                            lock pages in memory
    • liveCache version > 7.1.4.02
    • liveCache version > 7.2.3.02
Solution
https://service.sap.com/sap/support/notes/398665 (SAP Service marketplace login required)

Key words : data memory livecache extended pages cache page windows pse36 system area under uses size physical address than accesses range devspaces

Related Notes
606130liveCache Installation for SAP SCM 4.0
561338How is AWE used as of SAP DB version 7.4?
560528Using AWE with SAP DB Version 7.4 or higher
500843Composite SAP note for COM and SAP liveCache 7.2 or higher
433115Parameterization of liveCache 7.2 for APO 3.0
392852Additional applications on the liveCache server
361076Poor performance when using PAE/AWE
339798liveCache installation: Phase ADAUSRPARAM_NT_ADA