RE: Solaris 10 shmmax

From: Kevin Closson <kevinc_at_polyserve.com>
Date: Mon, 26 Mar 2007 10:22:12 -0700
Message-ID: <5D2570CAFC98974F9B6A759D1C74BAD002F7454A@ex2.ms.polyserve.com>

I would also like to understand this a little better. One of my friends is running 10.2.0.2 on Solaris9 and Sun 6900. His shmmax is set to 20G and has 64GB RAM on the server and this is the only instance running on that box. He is seeing multiple shared memory segments on the server. Oracle told him to disable _enable_NUMA_optimization parameter which is enabled by default.

...why? Why turn off the ability for Oracle to exploit the hardware acrchitecture? Is the output of ipcs so disturbing due to multiple segements? That just sounds like concern over nothing.

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Received on Mon Mar 26 2007 - 12:22:12 CDT