No bsdprugelknabe, you could open a case with F5 Support as Sam suggested:
This is a known issue(CR116460), read the forum here for a workaround:
http://devcentral.f5.com/Default.aspx?tabid=53&forumid=1&tpage=2&view=Topic&postid=1496
also refer to SOL10132, this issue has only been fixed in BIG-IP version 10.0.1
https://support.f5.com/kb/en-us/solutions/public/10000/100/sol10132.html
For earlier versions you can request an engineering hotfix from F5 Support (quoting CR116460)
The change to the httpd.conf isn't supported and could lead to issues that Joe described in this post:
http://devcentral.f5.com/Default.aspx?tabid=53&forumid=1&tpage=2&view=topic&postid=149655902
As I just posted in another forum thread(Click here), modifying the core webserver configuration can have unwanted side effects and F5 does not endorse this change. Several components such as System locking and Partition settings are stored in-process. When you increase the number of processes, this breaks the functionality of the above features. Also, by adding another iControlPortal process, you are also effectively doubling the memory needed to run iControl.
Aaron