Re: Hardware, Cores, Licenses

From: Noons <>
Date: Thu, 16 Aug 2012 00:18:53 -0700 (PDT)
Message-ID: <>

On Aug 15, 5:47 am, Alex Busam <> wrote:
> I make a backup image of the hole windows 2003 Server including oracle
> and the database and I like to transfer it on a new hardware. I will
> move the server on a new hardware.

and will it stay a W2003 server?
Is this Windows Enterprise Server or simply Windows Server? There is a fundamental difference between the two. Read on.

> the old server is a 2 cpu single core 3,6 GHz Xeon. But I think the
> bottleneck is the i/o.

It'll be the I/O unless you are running Enterprise Server. No matter what.

> And the i/o-device? How much faster will my config be confirmed with the
> old U320? I know that there are a lot of factors you (and I) don't know...

Windows server has one I/O queue for each drive letter. Each queue has a depth limit of about 5 before it starts hitting throttle race conditions and bottlenecks. So if you have more than 5 database files on concurrent access per drive letter, you got a virtually guaranteed I/O bottleneck regardless of the hw used.

The alternative is to use Windows Enterprise Server - which has a completely different I/O queueing mechanism and strategy- or spread the I/O across a LOT of drive letters, or use a SAN with variable queue lengths for each connection, or a combination of the last two. Received on Thu Aug 16 2012 - 02:18:53 CDT

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