Tuesday, December 24, 2013

Oracle is not using large pages on AIX 6.1

www.unixbabuforum.inI have Oracle 10.2.0.3 with oracle account set up with 
capabilities=CAP_BYPASS_RAC_VMM,CAP_PROPOGATE, 
and lgpg_regions = "4608", maxpin = 26091023 in /etc/tunables/nexboot file. Oracle is set to lock_sga = TRUE . However every startup I observe in svnom drop in large page numbers to around 2K+ and errpt displays ONE OR MORE LARGE PAGES HAS BEEN CONVERTED INTO PAGEABLE PAGES. 

www.unixbabuforum.in10.2.0.3 installations have a large pages has an issue with that version (note of issue and workaround is here: Metalink note 728444.1) 

There is a fix but it means you'd have to upgrade to 10.2.0.4 and apply: 10.2.0.4 ARU 10553734 completed for IBM AIX Based Systems (64-bit)

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