text: **Chapter 12. Scalability, reliability, and**
  
  **availability architectures**
  
  IBM Content Manager OnDemand (Content Manager OnDemand) is a lightweight process, 
  that is, the Content Manager OnDemand code itself does not require extensive system 
  resources to perform the functions that are required of it. Content Manager OnDemand 
  installations scale to handle both large quantities of data and many users. The total quantity 
  of data that is stored or retrieved at any time is the main contributor to the resource 
  consumption on the server. This chapter focuses on the scalability, reliability, and availability 
  of Content Manager OnDemand systems. 
  
  In this chapter, we cover the following topics: 
  
  (cid:2) Scalability, reliability, and availability defined 
  (cid:2) Scaling a Content Manager OnDemand system 
  (cid:2) High availability 