RAC Re: asm disks
- From: "K Gopalakrishnan" <kaygopal@xxxxxxxxx>
- To: kaygopal@xxxxxxxxx, racdba@xxxxxxxxxxxxx, Scott <oraracdba@xxxxxxxxx>
- Date: Sun, 19 Nov 2006 14:43:37 -0800
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@xxxxxxxxx> 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@xxxxxxxx>
To: oracle-l@xxxxxxxxxxxxx
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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