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[News] Mainframes with GNU/Linux Still Commonplace, Windows Dying in Large Computers

  • Subject: [News] Mainframes with GNU/Linux Still Commonplace, Windows Dying in Large Computers
  • From: Roy Schestowitz <newsgroups@xxxxxxxxxxxxxxx>
  • Date: Sat, 10 Oct 2009 09:25:08 +0100
  • Followup-to: comp.os.linux.advocacy
  • Newsgroups: comp.os.linux.advocacy
  • User-agent: KNode/4.3.1
Hash: SHA1

âAn SMB needs to be at a certain level of business computing before it requires a mainframeâ

,----[ Quote ]
| What about Linux? Thatâs available on 
| System z.
| System z runs Linux extremely efficiently 
| and there are hundreds of applications 
| available for Linux on the mainframe, 
| which are certified. You could take any 
| Linux application and make it run 
| immediately but unfortunately you donât 
| have many vendors supporting it. 
| Secondly, while the customer adoption of 
| Linux in India is high it is not for the 
| mission-critical workloads (barring the 
| government vertical). This is another 
| reason why we are not able to make big 
| inroads. Because when you are running 
| only print servers and Web servers it 
| doesnât make any sense to run it on a 
| mainframe. Itâll be like buying a Rolls 
| Royce and running it like a taxi. 


Mainframe not yet a has-been: IBM

,----[ Quote ]
| System z with zOS does have an issue with 
| graying of the skills, but z is possibly 
| the most open platform today â it runs 
| zOS, zVM, Linux, zTPF, DOS/VSE operating 
| systems natively. No other platform can 
| do this. The fact that it runs Linux 
| natively allows for any Linux skill to 
| exploit System z. Hence the statement of 
| skills obsolescence is only in a portion 
| of the total dynamic.


London Stock Exchange gets the facts and dumps Windows for Linux

,----[ Quote ]
| Microsoftâs marketing arm excitedly 
| churned out a case study in 2005 when the 
| London Stock Exchange (LSE) rolled out a 
| C# stock exchange ticker system on 
| Windows Server 2003 and SQL Server 2000. 
| Four years later the LSE has scrapped the 
| whole system in favour of a Linux-based 
| solution instead.



Mainframes still command a loyal following

,----[ Quote ]
| But there are changes happening. BMC's survey found
| increasing use of Linux, for example.
| "IBM is pushing z/Linux and we're finally seeing a big
| upswing in interest. Some customers are even using their
| entire mainframe as one giant Linux box," said Miller.


Mainframe emulator goes commercial

,----[ Quote ]
| While CentOS and Debian Linuxes have supported the z
| implementation of the Linux kernel, the mainframe
| variants of Linux from Red Hat and Novell are what
| nearly all mainframe shops use, and this code is
| available for free even if the installation and
| technical support for it is not.


Mainframe shops gush over big iron

,----[ Quote ]
| What can be said is that by corralling some mainframe
| engines, slashing their prices, and letting them run Linux
| instances or speed up Java or DB2 workloads, IBM has been
| able to keep the installed base of mainframe processing
| power, as measured in MIPS, growing - even as it has its
| ups and downs each quarter. And the downs have been
| especially sharp since the economic meltdown kicked in a
| year ago.

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