Re: 4 Primary partitions limitations

Why bother creating partitions ? Just use the devices directly in ASM. I dont really see any reason why you would want to partition them. Linux won't ever access those disks if you're using them in ASM, and ASM doesn't need partitions nor filesystems.

Stefan

Stefan P Knecht
Senior Consultant
Systems Engineering

OPITZ CONSULTING Schweiz GmbH
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OCP 9i/10g SCSA SCNA

On Fri, Nov 21, 2008 at 1:55 PM, LS Cheng <exriscer_at_gmail.com> wrote:

> 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_at_yahoo.co.uk> 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
>>
>>
>>
>>
>> --
>> http://www.freelists.org/webpage/oracle-l
>>
>>
>>
>

--
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