Tuning Raid performance has the air of a black art to storage administrators, with the perception that it can do more harm than good. Most consider the job done once the Raid level is selected. But, it is possible to fine-tune some Raid parameters to anticipate application storage demands and improve performance.
constitutive enzyme an enzyme that is made all the time at a constant rate, unaffected by inducers. enzyme
 2. Competitive and Noncompetitive  inhibition-Limits the enzyme activity. This occurs when a molecule  binds to an enzyme, either on the active site or allosteric site,  and decreases its activity.  3. Allosteric Regulation-Causes a  different shape in the enzyme.May either inhibit or stimulate an  enzymes activity.2. Competitive and Noncompetitive  inhibition-Limits the enzyme activity. This occurs when a molecule  binds to an enzyme, either on the active site or allosteric site,  and decreases its activity.  3. Allosteric Regulation-Causes a  different shape in the enzyme.