Migration of ECC6 from Standalone to HA environment

[joo_migueldimas]

Hello gurus,

(First at all... I don´t know if this is a question for this group... if not my sincere apologies!)

My goal is to make a thing that I never did!

I want to migrate a SAP ECC 6.0 (ABAP+JAVA) system that works in Standalone mode to a High-Availability System (HA) with two nodes working together... this standalone system is installed on Windows System 2003 Server X64 with SQL Server 2008 and we have other machine/server (with the same operation system) prepared to receive the other node!

We want to have our system in HA Configuration so that when System A is working the other System B (in other server) is at down stage and vice-versa... in fact both system is only one system for the end users, both are link/connect with only one database, isn´t it?

This is a migration project? What is necessary to do this... ?!

Other question... the two servers have to be equal, with the same operation system and with the same bits (one node server X64 and other the other node with X32)??

Best regards,

João Dimas - Portugal

[Former Member]

Hi,

not sure about a windows cluster.

But mixing diffrent architectures isnot a good idea!.

On HPUX we have it that way

SAN Storage connected to both nodes.

Serveral packages definied that can be moved between the hosts including filesystems and cluster ip / hostname

So you install sap to one host configured to the cluster hostname.

Then you can switch the package between both servers. .

For this you don´t have to do a migration. Just install the system fresh to one clusternode and restore your database there aftewards.

regards

Peter

[joo_migueldimas]

Hello Peter Reuschlein,

Thank you for your answer.

I already know... In fact, as you said, mixing architectures isn´t a good idea... even in Microsoft Windows framework that is not possible... I should have two nodes with a same architectures/framework (x64).. I think that is a requirement for a windows cluster framework!

So... let me understand your last words... I must have two sap systems installed, one in each machine/server, this is, I have to install two Central Instances?

Regarding the database... we don´t have a SAN Storage! But we didn´t want it, this is only for a test scenario, we only have this two windows server x64 and I think it is possible to install a database with the "data itself" in one of these two nodes, isn´t it?

Kind regard,

João Dimas - Portugal