Server node calculation

[former_member201054]

Hi,

I have 8 GB memory in DEV system( AS Java).

Finished the installation ,now need to create server nodes.

How many server nodes can be created for effective performance

Any calculation for number of server node creation?

Thanks a ton

[sunny_pahuja2 · Accepted solution]

Hi,

Check SAP note 723909. Please find below extract from this note:

For each JavaVM on the server, all Java memory must fit completely

into physical memory (no paging)!

Therefore the rule of thumb for number of server nodes for SUN and HP

JavaVM with 1 GB Heap each will be

#ServerNodes = (AvailableMemory / 1.5 GB)

and factor 2.5 should be used instead of 1.5 for 64 bit with 2GB heap size.

Thanks

Sunny

[former_member201054 · Accepted solution]

Hi,

I got two questions

1.what factors decide the necesary of more server nodes( any particular urging factor by which we could conclude)

2. How to know the memory consumption of a server node from physical memory ,based upon I can go for more server nodes with available.

Thanks a ton

[sunny_pahuja2 · Accepted solution]

Hi,

>

> 1.what factors decide the necesary of more server nodes( any particular urging factor by which we could conclude)

>

If your existing server node is not able to take the existing load on the system then you can add more server nodes. It's like we add application servers for load balancing.

> 2. How to know the memory consumption of a server node from physical memory ,based upon I can go for more server >nodes with available.

>

Memory consumption you can monitor from NWA.

Thanks

Sunny

[Former Member]

Hi Daniel

Your question is very hard for a response exact.

For default one server node is created for JAVA Instance.. You decide if need more server nodes for many variables, memory, CPU, users, JAVA processes etc.

Search documents for performance in JAVA according to your OS and DB.

I think that let one server node and monitor JAVA instance, then decide if need more server nodes or not.

Regards

William Neira