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AMM + hugepages on 11.2.0.3.4 (+ EBS_APP (on a single server))

edited Apr 23, 2013 4:08AM in Database Administration (MOSC) 6 commentsAnswered
Hi all

I want to set up hugepages on 11.2.0.3 (16gb RAM server)

i've read that:

 "The Automatic Memory Management (AMM) and HugePages are not compatible. With AMM the entire SGA memory is allocated by creating files under /dev/shm. When Oracle Database allocates SGA that way HugePages are not reserved. You must disable AMM on Oracle Database 11g to use HugePages."

and i have "0" in memory_target and memory_max_target params, so i think i have not AMM enabled, BUT i have lots of files under /dev/shm:

-rwx------ 1 dbebstesna dba       592 Mar  8 01:00 PESLD_EBSTESNA_58000f_609b518900000000

so, i have or not the AMM enabled?

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