[suse-oracle] 10gR2 RAC on SUSE10

Hi,

We will install Oracle 10gR2 RAC on SUSE 10 soon.  I google the net and can't find anyone has done it.  If anyone here has done it, could you shared your experience please?  Good or bad.

I have a few specific questions:

1. During the SUSE installation, do I need to tick "High Availability"?  (I will install Oracle 10.2.0.4 which does not use hangcheck-timer any more.)

2. Is there any difference to implement HugePages by add hugepages=xx into /boot/grub/menu.lst or by adding vm.nr_huge_pages=xx into /etc/sysctl please?
  I found this subject confusing.  There are many things floating around, such as:
          SHM_USE_BIGPAGES in /etc/sysconfig/oracle,
          kernel.shm-bigpages-per-file,
          kernel.shm-use-bigpages,
          vm.hugetlb_pool,

  What is SUSE/Oracle's recommendation?  For example, should I set both vm.nr_huge_pages and vm.hugetlb_pool?

3. Do I still need to set Oracle's pre_page_sga=true and lock_sga=true?  It looks like SUSE 10 fixed vm.disable_cup_mlock issue, but not sure if Oracle 10gR2 can see the fix automatically.

4. What does vm.pagecache do for Oracle?

5. How should I set /proc/sys/vm/swappiness?  I am thinking of issue(s) related to:
 http://www.redhat.com/archives/nahant-list/2006-March/msg00044.html
 http://www.redhat.com/archives/nahant-list/2006-March/msg00142.html

6. The hardware supports NUMA, but Oracle on X86_64 does not, should NUMA be turned on or off please?

7. With RAC, the clusterware will startup all services upon reboot, do I need to manually disable /etc/init.d/oracle?  Or setting all entries in /etc/oratab to 'N' will be enough.

Thanks in advance.

If we are the Guinea pig, I will be happy to share my experience.

Kind regards,
Han

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