Re: Veritas File System

It's worth pointing out that QUICK I/O is little more than a replacement for the
file system buffer which allows you to
use EXCESS memory with slightly
more precision.

i.e. once you can't grow Oracle's
buffer because of the platform limit
on the SGA, you can still use memory
as the quick i/o buffer dedicated to
database file activity rather than using it as a generic buffer for all file system activity.

You need to have a pretty stressed
system to need it though - in most
cases a simple striping strategy to
ensure an even I/O spread is
sufficient.

--

Jonathan Lewis
Yet another Oracle-related web site:  http://www.jlcomp.demon.co.uk

Dave A wrote in message ...


>Do you have the Quick IO product as well?  That is an excellent product to

>have as it allows the bypassing of the unix cache (which isn't needed as

>Oracle understands what to cache better than Unix).  On the Sun hardware we

>tested it on (6500s mainly) the performance was slightly better (overall)

>than using raw disk for the datafiles.  The benefit of course is that it is

>much easier to administrate filesystem files than raw files.

>

>--

>Dave A

>

>

>"Joshua" <joshua.cool_at_pacific.net.sg> wrote in message

>news:8qnaer$145$1_at_newton.pacific.net.sg...

>> Hi All,

>>

>> We have installed veritas file system in one of our E3500 Sun Server,

 this


>> server will be our Oracle database server ( 8.0.5) . My question is , how

 to


>> make use of veritas file system features in Oracle system.

>>

>> Those who have come accross this stuation , please explain me in detail.

>>

>> Thanks in advance,

>>

>> Regards,

>>

>> Joshua.

>>

>>

>

>