Last updated on NOVEMBER 28, 2016
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
***Checked for relevance on 03-Jan-2013***
When trying to increase the SGA to approach half available RAM with an Oracle 64-bit version on a Linux 64-bit operating system, even though SHMMAX is set to match half the amount of RAM, you get the following error when trying to start the instance:
ORA-27102: out of memory
Linux-x86_64 Error: 28: No space left on device
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shmall is too small, most likely is set to the default setting of 2097152
$ cat /proc/sys/kernel/shmall
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