The PARAMETERS DISABLE CHECKS command enables you to override minimum and maximum values established for system parameters. SYSMAN does parameter checks by default. If you attempt to set parameter values outside the allowable limits when checks are enabled, the operating system issues an error message. By disabling checks you can set parameter values regardless of the minimum and maximum limits. NOTE Range checks are enabled by default because VSI suggests that systems operate within these minimum and maximum values. Setting parameters outside these limits can result in system failures or hangs.