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Am 02.05.11 20:31, schrieb Dave Love: Fritz Ferstl <ffer...@univa.com> writes:If you look at the approved power-down cycles which the vendors publish for state-of-the-art HW then that may be scary. It usually is in the order of 2000 cycles.Indeed, thanks. I don't remember ever seeing that documented for any of our hardware. That information should be available. I know at least that Sun/Oracle systems had that as part of the HW docs. The better option would be to switch the systems into energy saving modes - if the system provides something like that. Not all do.I guess any recently-acquired ones will, but I couldn't easily find useful documentation for Supermicro Westemeres, for instance. It is a function of the motherboard and firmware also, though, not just for the chipset. That said, I know customer cases who have done powersaving with the brute force shutdown approach. There is a presentation by s+c about it which was held during the last Grid Engine workshop. Have the on-line proceedings been archived and made available somewhere?The 2007 ones are at http://gridengine.org/assets/static/ws2007/SGEWorkshop2007.htm, if that's what you mean. There's also http://wikis.sun.com/display/SunHPC09/Sun+HPC+Software+Workshop+%2709+Wiki It's the latter (and another artefact that would be worth storing). The presentation I meant is here: http://wikis.sun.com/download/attachments/170755116/GreenHPC.pdf Cheers, Fritz --
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Fritz Ferstl | CTO and Business
Development, EMEA
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