Re: Migration from 9i to 10G
- From: "Niall Litchfield" <niall.litchfield@xxxxxxxxx>
- To: Oliver.Jost@xxxxxxxxxxxxxx
- Date: Mon, 20 Nov 2006 09:21:16 +0000
Hi Oliver
Like Alex - though perhaps not as directly being english 'n' all - I'm
interested in the motivation for doing single node RAC? I'd expect this to
perform in the order of 10-30% worse just through RAC overhead (haven't
tested this myself but have seen similar numbers somewhere and it makes
sense). Is the aim to prepare the way for multi-node RAC but not do two
upgrades at once? If so I'd move to single instance on 10g (R2 for
preference) and then RACify the database at a later stage. If you are going
to go multi-node RAC at a later stage you'll need twice as many NICs for a
start, you'll also find in 10g that the use of the shared pool increases
somewhat as compared to 9i, I doubt significantly but there will likely be a
difference.
On 11/16/06, Oliver Jost <Oliver.Jost@xxxxxxxxxxxxxx> wrote:
Hi All,
Aside from the installation minimum requirements, does anyone know of
or have metrics on some of the requirements and caveats for the hardware
configuration (cpu, memory...)? We are moving from a standalone server to a
single node RAC configuration.
Any comments would be appreciated
Thank you,
Oliver
--
Niall Litchfield
Oracle DBA
http://www.orawin.info
Other related posts:
