Re: 4 Primary partitions limitations

  • From: "LS Cheng" <exriscer@xxxxxxxxx>
  • To: hrishys@xxxxxxxxxxx
  • Date: Fri, 21 Nov 2008 13:55:26 +0100

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
>
>
>

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