IBM AIX on POWER Systems (64-bit) version 7.2 Large Pages Information in Alert Log File is Incorrect
(Doc ID 3063550.1)
Last updated on DECEMBER 13, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 19.24.0.0.0 and laterInformation in this document applies to any platform.
Symptoms
Alert log file shows AIX Large Pages configuration does not match OS configuration.
It shows 16M and 16G Large Pages that are not configured at the OS level.
Starting ORACLE instance (normal)
************************************************************
Instance SGA_TARGET = 204800 MB and SGA_MAX_SIZE = 204800 MB
************************************************************
**********************************************************************
Dump of system resources acquired for SHARED GLOBAL AREA (SGA)
Available system pagesizes:
4K, 64K, 16M, 16G
Supported system pagesize(s):
PAGESIZE AVAILABLE_PAGES EXPECTED_PAGES ALLOCATED_PAGES ERROR(s)
4K Configured 0 0 NONE
64K Configured 1 1 NONE
16M Configured 513 513 NONE <---
16G Configured 12 12 NONE <---
**********************************************************************
System parameters with non-default values:
sga_max_size = 200G
sga_target = 200G
AIX OS configuration shows only 64 KB pages:
PageSize Inuse Pin Pgsp Virtual
s 4 KB 3612 4 0 3562
m 64 KB 3150527 834 64 3150915
Changes
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
References |