RE: Running many instances of Oracle per server
- From: Juan Miranda <jcmiranda@xxxxxxxxx>
- To: <adb@xxxxxxxxxxxx>
- Date: Thu, 6 May 2010 16:06:45 +0200
Hello
I think you can have a great ratio of consolidation because 3 years are a
looong time in ?CPU time?.
You can use this xls to compare and estimate server power.
http://dl.dropbox.com/u/1308790/Benchmarks_ene2010.xls
There is a lot of bechmarks in these worksheet that you can use to estimate
the future load one server can support.
The worksheet don´t have any Xeon 56xx and this CPUs are 40% faster than
55xx?
Some docs about Oracle consolidation:
http://dl.dropbox.com/u/1308790/Oracle%20Server%20Consolidation.pdf
http://dl.dropbox.com/u/1308790/HP_linux_consolidation.pdf
Regards.
Juan.
_____
De: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] En
nombre de Andrew Bryant
Enviado el: jueves, 06 de mayo de 2010 15:21
Para: Oracle-L@xxxxxxxxxxxxx
Asunto: Running many instances of Oracle per server
Hello oracle-l,
With licensing costs in mind, I?m interested to hear just how many Oracle
server instances people have been able to run on the current generation of
8-core servers (and what their total CPU and IO loads are).
The context of the question is that our institute has had a generous
site-license for the last decade, but things will be changing when we
re-negotiate soon. We will be migrating 50 instances onto a small number of
servers. On the basis of total memory requirements and AWR reports of IO
and CPU usage we think we can run 10 to 25 instances per server, but this is
well beyond what we?ve run on our current, 3-year old servers. Are there
context-switching, or other issues with a large number of instances per
server? We will also be consolidating to a smaller number of instances.
Data volume per instance is tens/hundreds GB per database, plus one 200TB
warehouse (which will be staying where it is!)
Regards,
Andy Bryant PhD
Oracle and Mysql administrator
Wellcome Trust Sanger Institute, UK
-- The Wellcome Trust Sanger Institute is operated by Genome Research
Limited, a charity registered in England with number 1021457 and a company
registered in England with number 2742969, whose registered office is 215
Euston Road, London, NW1 2BE.
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