Re: Raw usage in Solaris

Yong Huang wrote:

> Hi, Nuno,
>
> You don't need Veritas or SDS to use raw. In fact, if you do, that's
> not called raw any more. To allow oracle to read from the raw device,
> run chown oracle:dba [thedevice] as root.
>
> Direct I/O may speed up or slow down db file read depending on whether
> the file is sequentially read (at OS or filesystem level). Filesystem
> page cache helps a lot by prefetch if the read is sequential. But
> using direct I/O allows you to give the memory that otherwise would be
> part of page cache to Oracle buffer cache, which manages Oracle data
> caching more intelligently. Read Steve Adams' Ixora News - March 2002
> newsletter.
>
> Yong Huang
> yong321_at_yahoo.com

Is this available on the web? I can't find anything at ixora.com that points to a newsletter.

Thanks.

Daniel Morgan Received on Tue May 14 2002 - 12:10:17 CDT