On Tue, Feb 22, 2011 at 10:53 PM, Aleksey Tsalolikhin atsaloli.tech@gmail.com wrote:

How much maximum memory will CentOS 5 support, please?

The product info page at http://www.centos.org/product.html says 16GB, but I am running 80 GB RAM right now and seeing 80 GB in top.

I see the same 16 GB limit on the RHEL page: http://www.redhat.com/rhel/compare/#note_4

The server hardware is capable of 192 GB RAM and I want to add memory, but want to be sure the OS will support it.

Is anybody running CentOS 5 or RHEL 5 with 192 GB or more, please?

Best, -at _______________________________________________

You're looking at the 32bit limits :)

The 64bit can support 256GB/1TB limit