server crashes

Hi

We have been using the Netweaver Portal 7.0 for sometime.

But off late I'm noticing the Server crashing when ever I perform certain administration tasks (like creating JCo or enabling/refreshing web dynpro applications). I also configured the VM parameters according the SAP Note and it was performing well for all these days.

What I'm noticing now is the archive files <drive>:\usr\sap\SID\JC00\j2ee\cluster\server0\log\archive

will become too bulky and once I delete these filese the server starts up and begins functioning normally.

What is surprising is the archive folder increses very quickly and accomodates too much space.

Is there anyway to decreace the log files size in the above folder location?

Please advice

thanks

-ms