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Re: What rough estimate for DBMS transactional load?

 
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Alexander M. Ermes
Honored Contributor

Re: What rough estimate for DBMS transactional load?

Hi Ralph.
Linux cluster is good for small applications.
But if you need power, go either to Xeon or Itanium cpu's. Check the technical data of the small RX servers and get a compare to Risc driven machines. Perhaps that can help you. We have Risc systems and will replace these with Itanium machines. We have Oracle databases on any kind of OS. I like the HP-UX systems, because they don't give us too much trouble.
Just my 0.03 ├в ┬м
Alexander M. Er
.. and all these memories are going to vanish like tears in the rain! final words from Rutger Hauer in "Blade Runner"
Mic V.
Esteemed Contributor
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Re: What rough estimate for DBMS transactional load?

I have a few bits to add, none of which is intended as derogatory of Linux. I like it just fine.

One thing -- you don't mention (I don't think! :-) which apps you're running, or if you're just doing straight Oracle, or what version is planned for use. These might help respondants to suggest things.

I personally would tend to agree, that PA-RISC would be better than regular Intel. But one must have facts, as you know.

One reason I've always given for avoiding Linux in this sort of enterprise role is lack of support. It's been a few years since I looked into this; maybe things have changed. Having enterprise mission-critical apps, they need to stay up and get fixed ASAP. I wasn't aware of any commercial Linux support at the level of HP's reactive services, let alone the proactive mission critical stuff. I have too much on my plate -- although I did this stuff when I was younger, I now don't have the bandwidth to sit around and debug open source software when it dies. I need reliable people on a payroll to do that for me when needed.

(If anyone's aware of good (comparable to second-tier and beyond inside HP) support for Linux, commercially, I'd love to know.)

Another thing that might make me itchy is licensing. I don't know how Oracle deals with Intel, but last I looked into this, Oracle was charging per-CPU for HP-UX -- clustered or not, ICOD or not (meaning you pay for unactivated CPUs on the application nodes...). This could get very expensive.

It does look like you can get ServiceGuard for Linux:
http://www.hp.com/hpinfo/newsroom/press_kits/2003/linuxworld/fs_serviceguard.pdf

Here are some sometimes-more, sometimes-less interesting links I found:
- "world record" benchmark 4-CPU Intel Itanium -- http://www.oracle.com/corporate/press/2005_jan/01.12.05%20oracle%20on%20linux%20benchmark%20final%20site.html
- Oracle on Linux including eval kit -- http://www.oracle.com/webapps/dialogue/dlgpage.jsp?p_dlg_id=3458696&src=2671650&Act=1614
- performance/analysis tools, halfway down page -- http://www.oracle.com/technology/deploy/performance/index.html
- 9i/Linux/Intel -- http://www.puschitz.com/TuningLinuxForOracle.shtml (more at http://www.puschitz.com/OracleOnLinux.shtml )
- database site -- http://www.databasejournal.com
- IBM e-server xSeries benchmarks -- http://www.pc.ibm.com/ww/eserver/xseries/benchmarks/series.html

HTH. Looking forward to your conclusions.

Mic
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