Data compression service

  • Text compression techniques

    Data compression enables sending a data object or file quickly over a network or the Internet and in optimizing physical storage resources.
    Data compression has wide implementation in computing services and solutions, specifically data communications..

This appendix contains the following to assist you in compressing and expanding your data: Example of a dictionary build; Using CSRCMPEV to test compression 

Data Footprint Reduction

The storage market is fond of inventing new terms.
Sometimes these represent bold new features.
At other times, it is a new dressing put on a well-known feature.
Data footprint reduction (DFR) probably falls somewhere in the middle, as it encompasses both compression and deduplication. “Dedupe and compression are data footprint reduction technologi.

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Hardware Table Stakes

Compression used to be a value-added feature.
Or something to differentiate one storage hardware vendor from another.
These days, good compression has become table stakes, used by just about all storage hardware vendors.
Dell EMC PowerScale, for example, is a scale-out network attached storage (NAS) storage system that includes the OneFS operating .

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Lossless vs Lossy

Lossless compression is about removing bits without actually eliminating information.
It does this by finding and removing various statistical redundancies.
For databases and other applications where high quality is required, this is a good approach.
The downside is that compression ratios are lower.
For example, the PNG format is one of the option.

What is lossy data compression?

Lossy data compression reduces the original size of the data by compromising some detail—it permanently removes unnecessary bits

Although it only discards unimportant information, it still affects the data quality

Common applications of lossy compression are multimedia files such as audio, photos, graphics, and videos


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