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Re: Horror stories please

From: Alan Howitson <howitsac_at_worldnet.att.net>
Date: 1999/01/10
Message-ID: <778tbj$4n2@bgtnsc02.worldnet.att.net>#1/1

I am currently running two 12-way V servers with Fibre channel IO to an EMC 3430 in a fail-over scenario, but without MC/ServiceGuard as of yet. We are always running production on one V with over 1000 OLTP users.

My advice is to just be very cautious in moving onto the V too quickly so you may give yourself enough time in your project plan to become familiar with the V and all its intrinsics because it is quite different from a variety of viewpoints which I will try to point out.

From the Operational viewpoint there are the following considerations: * Needs a real data center, no paper dust from printers, ect. It has some serious hardware architecture requiring powerful internal fans and filter mechanisms, definitely not your average D or K server.

From the SysAdmin viewpoint there are the following considerations: * Relationship between the 700 workstation/console and V server is accomplished via 'test station software' on the 700 which also monitors diagnostics and firmware on the V server. This presents another dimension of maintenance overhead which is also differrent in nature.

Now for some of the caveats:
* Check with HP and make sure you oder your V with a balanced number of CPUs and MEMORY carriers. Because the V deploys cross bar architecture you will be defeating the object if you don't balance this ratio thus enabling the multiple paths between CPU and MEMORY.

There is no doubt that the V class is an awesome server with more power than you can imagine on a single server and certainly runs our database application much faster than our T600 12-way. There are, however, a few caveats as described above, which need to be considered hopefully to be improved upon over time.

Good luck with your V class upgrade.

Alan Howitson howitsac_at_worldnet.att.net UNIX Consultant
Computer Consulting Services Corporation Horsham, PA
USA Bloody instructions which, being learned, return to plague the inventor. - Shakespeare, on debugging

Mark Smithers wrote in message
<914610333.28773.0.nnrp-01.c1ed2996_at_news.demon.co.uk>...
>I'm just about to upgrade my system(s) from HP-UX 10.20 on K servers
>runnning Oracle 7.3.3.3 to 'V' class servers running Oracle 7 or 8 on 11.0
>
>Are there any gotchas that I should be aware of
>
>Thanks in advance,
>
>Mark Smithers
>
>
Received on Sun Jan 10 1999 - 00:00:00 CST

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