Swap activity grows untill disk/system performance degrades ?
I have very serious performance problem. My system:
DB2 8.1 fixpack 14
SAP R/3 Enterprise 620 level 0060
RAM 32 Gb
Swap size 25 Gb
DB size 200 Gb
For examle let me say that I restarted my system. Users begin to connect and do their work. Performance is good. Slowly but constantly swap activity begins to grow (I used iostat command to monitor rootvg native disks where swap partition is) and after about 3 hours, disk activity reaches 100% and never goes down. In this state system is terribly slow and all users complain a lot. I understand that this is complicated situation but maybe someone experienced similar things before ?
At least where should I start ?
thank you in advance