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The oil and gas firm, which has operations in 29 countries, had been running seven versions of Unix as well as Windows. Now 70% of Statoil's enterprise applications are running on Red Hat Enterprise Linux and the number of Unix variations deployed has dropped from seven to four.
Savings came from running fewer environments and systems management tools and lower training costs, said Jan Hedstr"m, a Red Hat solutions architect who worked on the implementation.
The first step was to migrate applications such as Lotus e-mail and DNS from its Unix environment. Phase two involved migrating specialist applications.
"Statoil's demands for application quality and accessibility are very high. This standardisation from seven Unix variations to running only Linux and Windows will result in a much more efficient systems administrations department," said Johnny Roen, chief engineer at Statoil.