On Thu, 2008-05-01 at 15:30 -0700, Andrew Morton wrote: [cut] > > CONFIG_HOTPLUG is only settable to 'n' if you're CONFIG_EMBEDDED which > > has a zero set intersection with the users of megaraid, so in practical > > terms, there's no actual box it could kill. > > who suspends and resumes servers? I read an article not long ago about a guy running an AMD renderfarm. He was working on power management techniques, including suspending systems that weren't in use. It made a huge difference in power costs, apparently. I believe suspend is also used in some virtual server farms where physical systems are resumed and virtuals are migrated to satisfy higher CPU demands. I could also see using it combined with a load balancer or proxy to bring up backup web or database servers. Compared to using networked/USB power bars or management controllers to bring systems up and down, suspend/resume provides a faster response. -- Zan Lynx <zlynx@xxxxxxx>
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