on 03-26-2013 1:32 PM
Dear all Expert,
I have a SAP Netweaver 7.0 SR3 (BI) abap and java instance ( separated instance on the same server ) and also a gateway service instance installed on a windows server 2003 R2 X64 and sql 2005 - sap domain installation.
I have to do an Hardware change , only hardware change, without change any parameter such as Hostname, SAP <SIDs> , disk configuration, sql version, and any other configuration must remain the same.
I think to do the activity as described here ( macro step ) :
source server : is the original server
destination server : is the new server ( new hardware , faster )
. stop all activity and SAP instance ( abap e java ) on the source server
. backup sql of abap and java database of source server
. backup of the \USR\SAP\ directory of source server
. backup of non SAP directory of source server
. copy all backup of the source server on the destination server
. remove from the windows domain active directory the source server
. SHUTDOWN the source server
. Change the Hostname of the destination server with the same hostname and ip address configuration of the source server
. promote the destination server in the windows domain active directory ( so like was the source server !)
. SAP installation of the ABAP and the JAVA instance and the gateway service instance on the destination server mantaining the same parameter of the source server ( hostname, <SID> , SQL version , system number, disk configuration.. and so on...all remain the same )
. Restore of the database ABAP and the database JAVA previously copied from the source server in the same directory (unit letter and name) of the source server.
. overwrite of the \USR\SAP\<SID-ABAP>\ and the \USR\SAP\<SID-JAVA>\ and the \USR\SAP\<SID-GATEWAY>\ and the \USR\SAP\TRANS directory from copied from the source server to the destination server.
. start of the abap sap instance on the destination server
.start of the java sap instance on the destination server
. restore of non SAP directory
. very very basically SAP system check because nothing is changed.
. start all activity on the destination server ( new hardware ) !
With this procedure it is correct that i don't need to do any post-activity as described in the SAP system copy guide abap an , beacuse I tell you that NO configuration parameter is changed during the system copy ?
Any particular observation to this procedure ?
thank's in advance , Antonio.
Theoretically it is possible. First perform test migration to detect potential problems with your scenario. We do similar hardware migrations (with little difference according to OS specifics: UNIX/Linux with Oracle) for test purposes to save time. I think it is also possible for windows.
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my procedure is based on what official Help SAP descrive in this procedure :http://help.sap.com/saphelp_nw70/helpdata/en/4b/d8f23ea4b42e5ae10000000a114084/content.htm
Obviously i test first on a test system.
What is not supported in my procedure ? SAP support backup/restore method for system copy.
My procedure is like a disaster recovery.
Hi Antonio,
You may refer link for list of manual changes or issues faced while copy the Java based system using the approach mentioned in SAP help.
http://www.sap-forum.org/f5/backup-recovery-of-nw70-java-abap-system-t865/
Best approach for JAVA based systems would be to export and then import.
Refer system copy guide for the same.
http://www.saptechies.com/sap-pdf-books-download/011000358700001299432010E343411319088345.pdf
Hope this helps.
Regards,
Deepak Kori
Hello
As this is a Windows server how about the registry entries related to SAP ?
How will you get them in the new server ?
I am not sure how important they are, but I am sure there are entries.
Cheers
RB
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Hi Antonio,
You need to follow the Homogenous System Copy guide. Specially when dealing with the JAVA instance you need to do a full export/import otherwise it will simply be unusable.
Regards
Juan
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Hi Juan ,
sorry , i don' t agree with you because my procedure is based on what official Help SAP descrive in this procedure :http://help.sap.com/saphelp_nw70/helpdata/en/4b/d8f23ea4b42e5ae10000000a114084/content.htm
So what about my procedure ?
You asked for advice, I'm giving you my 2 cents.
My advice will be to do a export of your Java system using SWPM and import on your new host. You can save yourself a lot of trouble. For both your ABAP and JAVA systems the procedure is well documented in the Homogenous System Copy guide.
Regards, Juan
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