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Data Progression and storage profile selection
49 Dell EMC SC Series: Best Practices with VMware vSphere | 2060-M-BP-V
Within a VMware environment, this new functionality may change the storage profile strategies previously
implemented in the environment. Administrators should review all the new storage profile selections, such as
the ones shown in Figure 27, to see if improvements can be made to their existing tiering strategies.
New storage profile available with SCOS 6.4
For detailed information about On-Demand Data Progression, read the SC Series Storage Manager
Administrator’s Guide available on Dell.com/support.
11.2 Data reduction (compression and deduplication)
Released with SCOS 7.0, the data reduction feature takes advantage of both compression and deduplication
for reducing the data footprint. As part of its daily cycle, Data Progression deduplicates and compresses the
data within volumes that have the data reduction feature enabled. Depending on the data reduction policy set
on a particular volume, the data can either be compressed, or deduplicated and then compressed for
maximum savings.
Data reduction options within volume settings
Note: Depending on factors such as array hardware and application workloads, enabling data reduction may
have a performance tradeoff in exchange for the capacity savings.
The advanced options available in the volume settings offer control over the data reduction input, which
consists of pages an administrator deems eligible for data reduction. The choice between inaccessible
snapshot pages and all snapshot pages is a tradeoff between maximum savings and maximum performance.