Solution : https://service.sap.com/sap/support/notes/835474 (SAP Service marketplace login required)
Summary :
SAP Note elaborates on the extended memory limitations for UNIX systems versus specialized implementations for AIX and Windows platforms. Initially capped at 32,800 MB, the latest updates now allow IBM i (as of OS Release IBM i 6) and kernels post-Version 640 to support extended memory up to 1 TB, with parameter adjustments provided for initial size and block size in the memory configuration. The note outlines prerequisites for raising the memory cap due to modern machine extensions requiring larger memory allocations. Implementing the specified kernel patch and adjusting the block size can optimize memory management and provide increased capacity for extended memory in SAP systems.
Key words :
es/disclaim_threshold_mb = 70000es/blockdisclaimsize_kb = 4096for, em/initial_size_mb = 300000em/blocksize_kb = 8192increasing, terms extended memory reason, parameter em/blocksize_kb, es/table = unix_std, es/table = shm_segs, standard unix systems, modern machines makes, cst patch collection, em/initial_size_mb parameter
Related Notes :
| 923610 | Memory parameter recommendations for banking systems |
| 845887 | CST Patch Collection 21 2005 |
| 834501 | CST patch collection 15 2005 |
| 790099 | R/3 Parameter Settings for Unicode conversion |
| 735566 | Documentation for parameter es/disclaim_coasting_time_alloc |
| 724140 | Extended memory, release for operating system |
| 146289 | Parameter Recommendations for 64-Bit SAP Kernel |