on 02-27-2009 1:01 PM
Hi experts,
We decided to transfer our SAP systems to virtualized landscape. We are analyzing hyper-v solution. We think this is an economic way for windows platform. Does anybody have experience on windows 2008, mssql 2008, hyper-v, windows 2003 as an guest system...etc.? These are not productive system but performance and availability are importing things for us.
Second option is migrate system to linux/oracle and using XEN...
I'm waiting for your suggestion.
Best Regards...
> We decided to transfer our SAP systems to virtualized landscape. We are analyzing hyper-v solution. We think this is an economic way for windows platform. Does anybody have experience on windows 2008, mssql 2008, hyper-v, windows 2003 as an guest system...etc.? These are not productive system but performance and availability are importing things for us.
You can start with http://sdn.sap.com/irj/sdn/virtualization.
> Second option is migrate system to linux/oracle and using XEN...
Oracle is not supported (as of now) on virtualized environments, however, it works nicely in Xen, the performance impact on Linux is minimal, if not hundred or thousands users working on the system I'm sure you won't even notice a difference.
If you have no strict platform choice yet you could switch to MaxDB instead of Oracle, cheaper in maintenance and likewise performant. Another idea could be Solaris x64 (on the same hardware) using zones for virtualization, performance impact is there even less and Oracle is supported on that.
Markus
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Yes - I've done that. I works but the SuSE provided drivers for network and block devices are not yet that stable. Especially if you use SQL Server as database. I have had a quite some"suspect" databases and torn pages because of I/O related errors that could be sourced to the SuSE block drivers.
It boots very fast (if you use a SAN backend and raw devices).
If you use AMD processors you can't install the HAL drivers for the processor synchronization and due to that you need to switch via boot.ini to the lower speed operating system timer - instead of using the highres timer.
If you want to go for Windows I'd use Hyper-V or VMWare, both are supported for production environments.
For me personally, if I have a choice, I prefer any Unix or Linux above Windows.
Markus
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