An EMC Data Domain customer has been achieving a compression ratio of 14:1 for database
backups over the past year. Two weeks ago the aggregate compression dropped from 14:1 to 4:1.
What is a possible cause for this change in compression?

What does the term “compression factor” refer to in the exhibit?

On an EMC Data Domain system, what is the purpose of the log host add <host> command?

An organization has 3000 GB of file system data with a daily change rate of 10%. Assume the first
backup reduces by a factor of 3 (3x), daily incremental backups reduce by a factor of 10 (10x), and
subsequent full backups reduce by a factor of 30 (30x). Required retention is 10 weeks (1 weekly
full/6 daily incrementals) and system utilization cannot exceed 50% of available capacity.
What is the minimum EMC Data Domain storage required?

An organization has 6000 GB of file system data with a daily change rate of 10%. Assume the first
backup reduces by a factor of 3 (3x), daily incremental backups reduce by a factor of 10 (10x), and
subsequent full backups reduce by a factor of 30 (30x). Required retention is 10 weeks (1 weekly
full/6 daily incrementals) and system utilization cannot exceed 50% of available capacity.
What is the minimum EMC Data Domain storage required?

As represented in the exhibit,

which metric is the Local-Comp Factor reporting in the filesys show compression output?

Which pieces of information are necessary to determine the capacity requirements of an EMC
Data Domain system?

What is the default behavior for messages log files in an EMC Data Domain system?

On 8/15, what causes the drop in disk usage on the EMC Data Domain system as illustrated in the exhibit?

An EMC Data Domain system has 300 TB of usable storage with 270 TB currently used. Daily
backups are consuming an additional 5 TB per day. Based on this trend, what will occur if nothing
is changed?