Re: direct I/O on Hp-ux

From: Andrea <netsecurity_at_tiscali.it>
Date: Tue, 07 Aug 2007 05:20:45 -0700
Message-ID: <1186489245.039194.37940@19g2000hsx.googlegroups.com>

On 7 Ago, 13:45, hacketta..._at_mac.com wrote:
> On 7 Aug, 09:52, Andrea <netsecur..._at_tiscali.it> wrote:
>
> > Hi,
> > i've read some info on "filesystemio_options" here:http://download-west.oracle.com/docs/cd/B13789_01/server.101/b10752/c...
>
> > i would like to know if is possible to set Direct I/O for parameter
> > "filesystemio_options" on hp-ux
>
> > Someone have experience whit it?
>
> > thanks
> > by
> > andrea
>
> To enable direct IO on HPUX you need to set certain vxvfs mount
> options: mincache=direct covosync=direct.
>
> Seehttp://www.oracle.com/technology/deploy/performance/pdf/TWP_Oracle_HP...
> for more info. on this topic

thanks very much!

So, you can have experience if this option can really improve performance on OLTP db??
there is some advise for implementing direct IO rather then RawDevice ?

thanks Received on Tue Aug 07 2007 - 07:20:45 CDT