Max. Paging % of RAM

[former_member220071]

Dear All ,

We have two application server and one database server.Both application servers having 4 GB RAM

Following data shows on eairly watch aleart report.

Server Max. CPU load [%] Date RAM [MB] Max. Paging [% of RAM] Date Rating

app1 20 03.01.2009 4089 72 01.01.2009

app2 15 31.12.2008 4076 31 02.01.2009

erp 7 31.12.2008 12276 2 01.01.2009

Please suggest how to avoid max.paging on my application server 1&2.

Also specify which existing parameters need to be change.

Regards

Abhijeet

[Former Member]

Hi

The easy answer is to add more memory. You can of course try to tune memory using by changing parameters for buffers or reduce the number of processes, but this is dependant on that there is actually free space to use. Check transaction st02 for large buffers/areas which are not in use. You can check the CPU usage time of the processes in transaction sm50 to see if they are not in use and reduce the number of processes if there are many unused.

In most cases the high swapping percentage is due to a large extended memory space, in this case you need to add to physical ram or change the user patterns (e.g avoid running memory-consuming reports/transaction during peak load). You can check the memory usage via transaction sm04.

Rgds

Eivind

[former_member220071]

Dear Eivind,

Thanks for reply, when we checked in st02 it shows following information , under swap it showing red (63,062 & 768 )

Buffer HitRatio % Alloc. KB Freesp. KB % Free Sp. Dir. Size FreeDirEnt % Free Dir Swaps DB Accs

Export/import 82.91 20,000 40 0.28 20,000 13,719 68.6 63,062

program 99.93 700,000 53,213 7.88 175,000 156,532 89.45 768 58,386

Is there any issue with swap.This is due to physical RAM . Currently we are using 4 GB RAM in each application server.

Regards

Abhijeet