# SHEDS A Simple and Secure Cost Efficient Data Storage in Heterogeneous Multiple Cloud

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## Multi-cloud data hosting

Multi-cloud data hosting received wide ttention from researchers, customers, and . The basic principle of multi-cloud (data hosting) is distribute data across multiple clouds to gain enhanced redundancy and prevent the vendor lock-in risk, as shownThe potential prevalence of multi-cloud is illustrated in three
folds. First, there have been a few researches conducted on multi-cloud. DepSky guarantees data availability and security on multiple clouds.

## Vendor lock-in risk

Facing numerous cloud vendors as well as their heterogenous performances/policies, customers may be perplexed with which cloud(s) are suitable for storing their data and what hosting strategy is cheaper.

The general status quo is that customers usually put their data into a single cloud and then simply trust to luck.