Why are 'DD' and 'DD-0' directory created? What are these?

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Issue

After installation using HP Intelligent Provisioning, I found 'DD' and 'DD-0' directory on /root directory.
Why are 'DD' and 'DD-0' directory created? What are these?

Environment

Red Hat Enterprise Linux 6
HP Proliant Gen8 Server
HP Intelligent Provisioning

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