Talk:Single-system image

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how about adding SGI to the list?

http://www.sgi.com/company_info/newsroom/press_releases/2004/march/large_scale.html http://www.sgi.com/products/software/starp/

Ericfluger 19:49, 10 March 2007 (UTC)

"Shared Roots" might not belong with SSI - A shared root cluster is intermediate between a SSI and an "incoherent" conventional linux "bunch of boxes" cluster. More precisely, all SSIs must have real or virtual shared roots, but not all shared roots need be SSIs: A shared root cluster has a unified filesystem between nodes, but not necessarily a unified process/memory space. A shared root without unification of other aspects is a convenient compromise between scalability and ease of management.

For linux clusters, the largest clusters (10000s of nodes+) are "bunch of boxes" clusters, shared roots to date are used up to 1000s of nodes, SSIs up to 100s. But SSIs are the easiest to manage/use, then shared roots, then bunches of boxes.