OpenSolaris for System z

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OpenSolaris for System z is the distribution of the OpenSolaris computer operating system designed to run on the IBM System z line of mainframe computers.

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Sine Nomine Associates began a project to bring OpenSolaris to the IBM mainframe in July, 2006[1]. Less than a year later, in April, 2007, Sine Nomine presented an initial progress report at IBM's System z Technical Expo conference.

At the Gartner Data Center Conference in Las Vegas, Nevada in late 2007, Sine Nomine demonstrated OpenSolaris running on IBM System z under z/VM. It was there that David Boyes of Sine Nomine stated that OpenSolaris for System z would be available "soon." [2]

The port uses z/Architecture 64-bit addressing, and therefore requires IBM System z line of mainframe computers - a z9 model or later, and will not run on older IBM mainframes. It also leverages the Paravirtualization features provided by z/VM, and will not run on "bare metal" or in a logical partition (LPAR) without the z/VM hypervisor at the z/VM 5.2 level or later[3].

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