Dell PowerVault DL2000 - Manual (Page 13)

ESG LAB VALIDATION
Dell PowerVault DL2000 Powered by CommVault
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The results are shown in Figure 11, with capacity savings measured for the first four backup jobs shown in a
solid line. The projected (dotted line) reduction rate for twenty backups retained on the DL2000 over thirty days
is approximately 97%.
FIGURE 11. COMMVAULT SIS DEDUPLICATION SAVINGS
ESG Lab ran backups of the same data sets, this time uncompressed and without using file deduplication.
Figure 12
shows a comparison of the system‘s performance in both modes. Backups running with file
deduplication and compression enabled ran at a sustained 129 GB/hour while the same data sets, backed up
uncompressed with file deduplication disabled, ran at 134 GB/hour
—a difference of 3.8%.