As illustrated in Figure 8-21, what is column family database storage and how are such systems organized?  How do column family database storage systems compare to RDMS systems?

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FIGURE 8-21 Name: LastName A Generalized Column Value: Able Family Database Storage System Timestamp: 40324081235 (a) A Column Super Column Name: CustomerName Name: FirstName Name: LastName Value: Able Super Column Values: Value: Ralph Timestamp: 40324081235 Timestamp: 40324081235 (b) A Super Column FIGURE 8-21 Continued Column Family Name: Customer Name: FirstName Name: LastName RowKey001 Value: Ralph Value: Able Timestamp: 40324081235 Timestamp: 40324081235 Name: FirstName Name: LastName Name: Phone Name: City RowKey002 Value: Nancy Value: Jacobs Value: 817-871-8123 Value: Fort Worth Timestamp: 40335091055 Timestamp: 40335091055 Timestamp: 40335091055 Timestamp: 40335091055 Name: LastName Name: EmailAddress RowKey003 Value: Baker Value: Susan.Baker@ elswhere.com Timestamp: 40340103518 Timestamp: 40340103518 (c) A Column Family Super Column Family Name: Customer Customer Name CustomerPhone Name: FirstName Name: LastName Name: AreaCode Name: PhoneNumber Rowkay001 Value: Ralph Value: Able Value: 210 Value: 281-7987 Timestamp: 40324081235 Timestamp: 40324081235 Timestamp: 40335091065 Timestamp: 40335001065 Customer Name CustomerPhone Name: FirstName Name: LastName Name: AreaCode Name: PhoneNumber Rowkey002 Value: Nancy Value: Jacobs Value: 817 Value: 871-8123 Timestamp: 40335091065 Timestamp: 40335091065 Timestamp: 40335091065 Timestamp: 40035091055 Customer Name CustomerPhone Name: FirstName Name: LastName Name: AreaCode Name: PhoneNumber Rowkay003 Value: Susan Value: Baker Value: 210 Value: 281-7876 Timestamp: 40340103518 Timestamp: 40340103518 Timestamp: 40340103518 Timestamp: 40340103518 (d) A Super Column Family