2 Replies Latest reply: Mar 8, 2013 1:15 PM by J Peters-Oracle RSS

    the amount of indexed memory

    user143622
      how much of memory OEL 6.3 32 bits can index?
      thanks for help
        • 1. Re: the amount of indexed memory
          Dude!
          To my knowledge, memory in system administration terms is allocated, not indexed. So I suppose you mean how much RAM Oracle Linux 6.3 x86 can possibly allocate. See here:

          http://www.oracle.com/us/technologies/linux/025994.htm

          ... which shows 64 GB for x86 32-bit Oracle UEK kernel. However as far as I'm aware you need a i686 CPU, meaning Pentium II or later.

          Btw, the product is no longer called Oracle Enterprise Linux. It's Oracle Linux, or OL. There is usually no valid reason to limit your OS to 32-bit processing or to install Oracle 32-bit software on any modern hardware.

          Note that regardless of how much total memory the OS can see using a x86 kernel, processes are still limited by 32-bit addressing and cannot use more than about 3 GB of memory.

          Edited by: Dude on Mar 7, 2013 1:31 AM

          The max amount supported by the original RHEL kernel is apparently 16 GB.
          http://www.redhat.com/resourcelibrary/articles/articles-red-hat-enterprise-linux-6-technology-capabilities-and-limits
          • 2. Re: the amount of indexed memory
            J Peters-Oracle
            Physical Address Extension "PAE",

            http://en.wikipedia.org/wiki/Physical_Address_Extension

            Cheers,
            Jim