Swaps on Buffer

[#1]

Hi,

I check ST22 there is CUA and Screen highlighted red as I know the swap number is accumulative from day to day..

Should I increase the buffer size ?

I check snote 1918603 "If a good percentage is observed, even with high number of swaps being displayed in transaction ST02, nothing needs to be changed in the system"

Regards,

[S_Sriram]

Hello,

Yes, please increase the buffer values where you have more swaps. Before that, you can restart the SAP instances and check ST02 to see when the swaps start. 

Could you share the OS / DB & SAP Versions details?

Regards

SS

[i_only]

Hi,

We use SLES 15 SP5, Hana DB 2.0, S4hana 2023

If we have to increase the buffer whether any best calculation to add it?

Regards

[S_Sriram]

Hello, Thanks for your information, Refer to the SAP KBA 1918603 – ST02: Swaps in various buffers, KBA 2468124 – Too many swaps on program buffer and general memory-analysis guide in KBA 2442188.

[i_only]

Hi,

based on my SS the CUA buffer still have Free about 75% do We still need to increase?

Regards

[S_Sriram]

Hi Yes, you can increase the values. Before doing any changes, first restart the SAP instance and check the buffer values. At what stage buffer values are swapping, based on the swaps you can increase the buffer values. Regards SS