Re: RAC in NAS

On 7/31/06, Mark Brinsmead <pythianbrinsmead_at_gmail.com> wrote:

> Unless the TA has such an expert in house, or knows where to find one,
> there's no one else to turn to than the vendors.
>
> Really? They could maybe start with their DBAs... True, I *have* met
> a few DBAs who don't know how disk drives work, but I like to think that
> such DBAs are becoming fewer in number (or at least do not survive for
> long). Okay, maybe I live in a fantasy world, but at least it's a nice
> one. ;-)
> In any event, I would think that most DBAs have the necessary skills
> to tell a good storage solution from a collossally bad one. And sometimes
> even to identify those which are "supported" or "not supported" by Oracle.
>
>

The places I've worked storage is a system admin area not a dba area. This has not always been pleasant. I suspect it is quite common. It isn't unreasonable for the TA to go to his in-house 'experts'. Unfortunately most sysadmins measure storage in GB, not your measure of GB/min or even better a measure of IO operations/sec

> That said, however, many of the more "curious" technical architecture
> decisions I have observed have something else in common (aside from
> over-reliance on "vendor input"). They have involved selections of
> server platforms or storage arays without obtaining input from the DBAs.
> Hmm...
>

of course and to counter my own argument somewhat, often the SAs are in the dark as well...

Of course even when you do employ experts/consultants and extensive consultation things can still look rather unfortunate http://news.bbc.co.uk/1/hi/health/5233604.stm

 --
> Niall Litchfield
> Oracle DBA
> http://www.orawin.info
>

--
http://www.freelists.org/webpage/oracle-l