Re: yipeee!

Database Guy wrote:

> Daniel seems to think otherwise. He clearly feels that Oracle's
> allegedly faster recover from node failures outweighs its
> less-than-half-speed RAC performance under BAU circumstances (i.e.
> nodes working). I can't understand why Oracle nodes crash so much, but
> it's not a product I know well. Hopefully someone else will explain.
>
>
> DG

I don't think nodes crash often: But all hardware, all operating systems, all platforms, and all software does have problems from time-to-time. Reading your post someone with little or no experience might be tempted to believe that somehow one vendor's RDBMS is more likely to cause a CPU to die than another's: Pure nonsense. All machines lose CPUs. All machines lose RAM. Computers are not perpetual motion machines. And downtime has a real cost in $.

If you truly believe that hardware never crashes I presume you also don't do nightly backups. In other words ... thanks for the hyperbole.

And if you truly believe that in the real-world RAC scaling at 128 nodes gives less than 50% of the performance of shared nothing scaling at 128 nodes I have some stocks and bonds I'd like to sell you.

-- 
Daniel Morgan
http://www.outreach.washington.edu/ext/certificates/oad/oad_crs.asp
http://www.outreach.washington.edu/ext/certificates/aoa/aoa_crs.asp
damorgan_at_x.washington.edu
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