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SDKs Parent Section 5 Membase Architecture Chapter Sections
5.1. Growing Data Sets Beyond Memory  5.1. Design 5.1.
Consequences of Memory faster than Disk 5.1.1. DGM
Implementation Details  membase has asynchronous persistence as
a feature. One feature-of-that-feature is that the working set
stored by an individual membase node can be larger than the
cache dedicated to that node. This feature is commonly referred
to as "disk greater than memory".   Each instance of ep-engine
in a given node will have a certain memory quota associated with
it. This memory quota is sometimes referred to as >the amount of
cache memory. That amount of memory will always store the index
to the entire working set. By doing so, we ensure most items are
quickly fetched and checks for the existence of items is always
fast.  Figure 5.1. Bucket Configuration  Bucket Configuration
In addition to the quota, there are t