Single-system image

From Free net encyclopedia

Single-system image or SSI is a form of distributed computing in which by using a common interface multiple networks, distributed databases or servers appear to the user as one system. In other words, the operating system environment is shared by all nodes in the system.

The following are examples of SSI clustering systems:

• Amoeba (inactive)
• The long-term goal of DragonFly BSD
• Genesis
• Kerrighed
• Nomad (inactive)
• OpenSSI
• Plurix
• Sprite (inactive)
• Hewlett-Packard's TruCluster

Other clustering systems may provide certain SSI characteristics without appearing as a single virtual system:

• Beowulf Distributed Process Space (BProc)
• Mosix/openMosixes:Single System Image

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