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On Sun, 22 Feb 2009, jon.davey@xxxxxxxxxxxxxx wrote: > ...This is the kinda' thing I'm on about; > http://www.slipperyskip.com/page18.html > This guy gets sponsored to do this, lucky b***er... Pah! Here is the last cluster I built: http://unicorn.drogon.net/cs2.gif 1994 ish... It's 2m tall to give you an idea of scale and contains (contained? It's probably scrap by now!) 256 compute nodes - each node was a dual processor sparc (166MHz) with 128MB of RAM and a 1GB SCSI drive. The 8 black towers are the external disk storage (later moved inside the cluster when the hardware was available) and they had 20 x 4GB drives inside each of them, arranged as 4 LUNs of 5-drive RAID-5 units. (16GB per LUN). There were 8 server nodes to host the disk drives and a weird hot-fail configuration (each disk unit had 2 SCSI master cables going into it!) and 8 spare compute nodes and a handful of other nodes to do things like FDDI, etc. The communications network was home built and was links of 75MB/sec between each node. It's built in an L shape due to the length limitations on the network cabling. Glad I didn't have to pay the electric bill for it ... But not bad for the early 90's! Gordon -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html