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Oracle RAC on RedHat Linux Best Practice guide and ... - OpenMPE

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<str<strong>on</strong>g>Oracle</str<strong>on</strong>g> VLM using shmfs<br />

• The shmfs is available in both RH 2.1 <strong>and</strong> 3<br />

• The mapping/unmapping happens relatively quickly<br />

via memory page table manipulati<strong>on</strong> <strong>and</strong> does not<br />

result in memory copies.<br />

• The n<strong>on</strong> database buffer areas of the SGA must still fit<br />

under the 2.7GB SGA limit.<br />

• <str<strong>on</strong>g>Oracle</str<strong>on</strong>g> Total SGA Size – Database Buffers +<br />

VLM_WINDOW_SIZE

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