on 10-12-2009 6:13 PM
We have the below systems with the same hostnames, but differnt SID and system numbers.
****SANDBOX SYSTEMS**********
SB1 - BI Sandbox
SC1 - SCM Sandbox
SC2 - SCM Sandbox
SG1 - GTS Sandbox
SL1 - ECC HtR Sandbox
SM1 - SRM Sandbox
SR1 - ECC Sandbox
SW1 - xRPM Sandbox
SX1 - PI Sandbox
SZ1 - xMAM Sandbox
Since these all applicattions physically present in one hardware box, I assume the system resources will be shared by each of them. But I have few confustions.
1. Whether each applicaiton will have its own memory(you have differnt memories/queues in application layer) allocated or they will share ?
2. Whether work processes will be shared or each instance will have their dedicated wp's ? Similarly how abt CPU's ?
3. In summary I want to know abt application layer, what are all the shared components (memories/wp/queues/instances/servers.....) and what are all the dedicated components to each application system ?
Thanks
kumar
Hi Kumar,
As you have many SAP system installed in one box, few system resources will be shared by each of them:
1. Memory: You can allocate different memory for every instance. what you observe in ST02. However on hardware level, you have sharing. check ST06..
2. No, every instance will have their own wp. You can observe this on operating system level. If you have Unix box, use ps -ef | grep dw.sap > will list all wp and you will see they will be running with different SIDadm user. On window box, you can check this in task-manager.
3. For example CPU will be shared by every sap system. So CPU utilization will be same for every sap system. You can verify this in ST06 simultaneously in diff. sap system's ST06.
So every sap system/instance will have its own:
workprocess, all processes, Filesystem (/usr/sap/SID/... , /oracle/SID/...)
*few FS can be shared based on your configuration..
Hope this will help ..
ashish
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