I just setup a 10.2.0.4 2 nodes RAC on RHEL 4.4 running right now with these disks and primary partitions: fdisk -l | grep "\/dev\/sd[a-z]1" /dev/sda1 * 1 2611 20972826 fd Linux raid autodetect /dev/sdb1 * 1 2611 20972826 fd Linux raid autodetect /dev/sdc1 2 26109 209707008 83 Linux /dev/sdd1 2 26109 209707008 83 Linux /dev/sde1 8193 262144 253952 83 Linux /dev/sdf1 117 7437 516096 83 Linux /dev/sdg1 8193 262144 253952 83 Linux /dev/sdh1 8193 262144 253952 83 Linux /dev/sdi1 117 7437 516096 83 Linux /dev/sdj1 2 26109 209707008 83 Linux /dev/sdk1 2 26109 209707008 83 Linux /dev/sdl1 1 16810 135026293+ 83 Linux You can have many primary partitions just that you can have up to 4 per disk (that is per lun in your case) Thanks -- LSC On Fri, Nov 21, 2008 at 9:28 AM, hrishy <hrishys@xxxxxxxxxxx> wrote: > Hi > > I am planning to use ASM and following diskgroups > 1)DataDg > 2)redoDg1 > 3)redoDg2 > 4)flashDg > I have 4 Usable Luns from the SAN that are presented to the host o/s which > is rhel 5 > > I have already created 3 primary partitions on Linux > 1)MBR > 2)root > 3)home > These partitions are under Linux LVM(Logical Volume Manager) > > since BIOS supports only 4 primary partitions > how can i use the 4 usable luns. > > should i be creating a extended partitions on the LUNS that are presented > to the host operating system > > regards > Hrishy > > > > > -- > //www.freelists.org/webpage/oracle-l > > >