Re: asm disks

Randy,

Was discussing this with Scott (Heisey) over the weekend and Scott mentioned that 1MB offset is mandatory for Solaris and HP-UX as the OS writes the VTOC in the first extent. Linux doesn't have the VTOC .

-Gopal

On 11/17/06, K Gopalakrishnan <kaygopal_at_yahoo.com> wrote:
>
> Randy,
>
> 1MB offset is more of a best practice, than the requirement. That is just
> to preserve the accidental overwrite or corruption of ASM disks during fdisk
> operations.
>
>
>
> Have a nice day !!
> ------------------------------------------------------------
> Best Regards,
> K Gopalakrishnan,
> Co-Author: Oracle Wait Interface: Oracle Press 2004.
> http://www.amazon.com/gp/product/007222729X/
>
> Author: Oracle Database 10g RAC Handbook, Oracle Press 2006
> http://www.amazon.com/gp/product/007146509X/
>
> ----- Original Message ----
> From: "Steiner, Randy" <Randy.Steiner_at_nyct.com>
> To: oracle-l_at_freelists.org
> Sent: Friday, 17 November, 2006 6:48:49 AM
> Subject: asm disks
>
> Currently when I am creating an ASM disk, I present the entire disk
> /dev/sdc to ASM, but I recall reading somewhere, that it might be a good
> idea to first create a 1 meg partition on the disk and then give the rest
> /dev/sdc2 to ASM. Has anyone else heard of this or done this?
>
>
>
> Randy
>

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