Re: SAN and multiplexing

epipko_at_gmail.com wrote:
> Hi all,
> We are running Oracle 9i (OLTP) on Win2003 Server.
> We are about to move our data from single server to SAN.
> Since everything on the SAN gets striped accross all the drives, does
> it still make sence to multiplex control files and redo logs?
> What if volume has double parity drives?
> Someone is already running 9i on windows on SAN?
> What is your configuration, if you don't mind to share?
>
> Thanks,
> Eugene

Absolutely multiplex.

First because it has taken you more effort to write this post than it could possibly take to multiplex control files and redo logs.

Second because you are making assumptions that will, almost by definition, lead to bad performance.

Just because you have a SAN does not mean you have 1 LUN, does not mean you have one HBA card with one channel, and most certainly should not mean you have a single unzoned switch.

If you set up the SAN with 1 switch, 1 HBA channel, and 1 LUN you will have just wasted tens of thousands of dollars.

-- 
Daniel A. Morgan
http://www.psoug.org
damorgan_at_x.washington.edu
(replace x with u to respond)