A customer’s environment consists of the following:
Linux servers with an Oracle database
Microsoft Windows with SQL
Full weekly backups for Oracle with a one-month retention period
Dairy incremental with a two-week retention
Full weekly backups for SQL with two retention periods
You collect the information in order to determine the capacity needed for an EMC Data Domain
solution. Which calculation will show the best trade-off between retention and compression?
A.
Calculations with the compression rate for the database
B.
Calculations with longer retention times
C.
Calculations across a range of retention times
D.
Calculations with minimal compression rates
Correct Ans C:- Calculations across a range of retention times
Explanation:- Compression rates will vary depending on the characteristics of the data and how many backup sets are retained and Retention policy is an important factor in determining the compression rate.
Retaining more backup sets usually increases the number of duplicates, and compression goes up as a result.
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