Just leaving for an appointment, but I'll check this out later. Thanks for the response.
-Nathan
----- Original Message -----
From: Matt Olson <Matt.Olson@xxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Cc:
Sent: Wednesday, May 15, 2013 12:01 PM
Subject: RE: cloud services with new development on IBM i on Power
Here's your different subsystems you can't seem to find:
Windows Subsystem overview:
http://en.wikipedia.org/wiki/Architecture_of_Windows_NT
Linux subsystem overview:
http://kernelnewbies.org/Documentation/Subsystems
In an example our MS SQL Server has several sub systems, the integration services sub system, the SQL Agent sub system, the database subsystem. Where-in you can set various resource governor settings on the database subsystem or create entire new instances of them and set processor affinity's to the various instances in addition to resource governance. A good introduction on this is here:
http://www.mssqltips.com/sqlservertip/1720/handling-workloads-on-sql-server-2008-with-resource-governor/.
A library list is just a list of databases. A library contains 1 or more files/tables,views, etc. The concept applied to other systems is called a "database". All database platforms I've ever dealt with have the same concept, just different terminology.
Wonder why the NASDAQ choose to run their platform on windows instead of the IBM i? Read this:
http://www.microsoft.com/casestudies/Case_Study_Detail.aspx?CaseStudyID=49271 (this example is switch from Tandem mainframes not AS400). Here is one for AS400 if you're interested:
http://www.microsoft.com/casestudies/Case_Study_Detail.aspx?casestudyid=4000011186
-----Original Message-----
From: Nathan Andelin [mailto:nandelin@xxxxxxxxx]
Sent: Wednesday, May 15, 2013 11:58 AM
To: Midrange Systems Technical Discussion
Subject: Re: cloud services with new development on IBM i on Power
Nice fictitious numbers. You'd be good at marketing :-)
Reminds me of a quote from the late Simon Coulter, "What part of marketing = lie don't you understand?". But no, the numbers are fairly accurate.
You can do it without 10 virtual machines, same way you describe on the IBM i.
If you can do it, then why don't you? And when I say "you", I mean anyone who deploys broadly scoped workloads under .Net, JEE, or PHP environments. In every case that I'm aware of, they have resorted to hosting separate tenants on separate virtual machine instances. Separate virtual machine instances are often used for separate products, even for 1 tenant.
Create separate schema's, library lists (aka databases) on platform X,Y, or Z.
I'm aware of schema support by other databases, but I'm not aware of any other systems supporting separate sub systems, and / or separate library lists.
I don't see any cost savings here.
Or you're just in delusional denial.
-Nathan
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