Chapter 2: Disk Space and Backup Software
21
Display the Space Usage Graphs
Display the Space Usage Graphs
The Data Domain Support web site includes graphs of disk space usage and compression for every
restorer that sends autosupport reports to Data Domain. The graphs display a history of disk space
usage, a compression ratio, and the total amount of data sent to the restorer. Use the graphs to see
how disk space is used on a restorer with your current data retention policies. Vertical drops in each
line show when one or more
clean
processes remove expired data. From the Support web site,
select
Space Usage Plots
.
Figure 9 shows an example of the display.
•
Cumulative Physical
The total amount of physical storage in use on the restorer. Look at the
left vertical axis of the graph for the total number of gigabytes used for storage.
•
Compression Ratio
The amount of compression the restorer has done with all of the data
received. Look at the right vertical axis of the graph for the compression ratio.
•
Cumulative Virtual
The total amount of data sent to the restorer by backup servers. Virtual data
on a restorer is what a backup server sees as the total un-compressed data held by a
restorer-as-storage-unit. Look at the left vertical axis of the graph for the total number of
gigabytes of data sent to the restorer.
Figure 9: Space usage graph
Cumulative
Virtual
Compression
Ratio
Cumulative
Physical
Summary of Contents for DD400 Series
Page 1: ...Software Version 3 1 2 DD400 Series Restorer User Guide ...
Page 4: ......
Page 38: ...Regulatory Standards Compliance xxxviii DD400 Series Restorer User Guide ...
Page 54: ...Hardware System Level Interfaces 16 DD400 Series Restorer User Guide ...
Page 60: ...Display the Space Usage Graphs 22 DD400 Series Restorer User Guide ...
Page 96: ...The License Command 58 DD400 Series Restorer User Guide ...
Page 102: ...Return Command Output to a Remote machine 64 DD400 Series Restorer User Guide ...
Page 128: ...Clean Operations 90 DD400 Series Restorer User Guide ...
Page 138: ...Display the History of Disk Failures 100 DD400 Series Restorer User Guide ...
Page 182: ...CIFS Command 144 DD400 Series Restorer User Guide ...
Page 194: ...Procedure Replace a Replica 156 DD400 Series Restorer User Guide ...
Page 210: ...Send Log messages to Another System 172 DD400 Series Restorer User Guide ...
Page 228: ...Operations for Trained Service Personnel 190 DD400 Series Restorer User Guide ...