How to add log storage to a SMS on VMware
It turns out that the procedure to add extra (log) storage to a Check Point Management Server (but also Multi-Domain Server, Multi-Domain Logserver and SmartEvent) running on VMware is not known to everyone.
WARNING: Never use the VMware expansion feature!
Check Point describes in sk104848 the Best Practices for Performance Optimization of a Check Point Management Server on VMware ESX Virtual Machine. It is recommended to choose Thick provisioning when creating an (extra) Virtual Disk (thick/lazy is acceptable).
The storage expansion procedure itself is described in sk94671 (including instructions for VMware) and should always be FULLY performed.
Magnus Holmberg explains the procedure in the Check Point CCSA R80 video series. Look for the video named Check Point how to add additional logspace | lvm_manager | sk94671.