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SCALE 8x: Ten million and one penguins

SCALE 8x: Ten million and one penguins

Posted Mar 18, 2010 13:42 UTC (Thu) by inouk (guest, #64516)
Parent article: SCALE 8x: Ten million and one penguins

Hi,

Minnich said:

"Minnich is used to monitoring cluster nodes at 6Hz, but most big cluster nodes are monitored every ten minutes or 1/600Hz—otherwise the amount of data is just too overwhelming."

We usually say "we monitor something each minute", but 6Hz and 1/600Hz ? I'm not sure I understand about Hz (cycle).

Thanks!


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SCALE 8x: Ten million and one penguins

Posted Mar 18, 2010 14:07 UTC (Thu) by jake (editor, #205) [Link]

> I'm not sure I understand about Hz (cycle).

I thought it was a bit odd that he put it that way, but that's what I have in my notes. 1Hz = 1 cycle/sec, so 6Hz is sampling 6 times/sec and 1/600Hz is sampling every 600 seconds (i.e. 10 minutes).

jake

SCALE 8x: Ten million and one penguins

Posted Mar 20, 2010 3:05 UTC (Sat) by rminnich (guest, #64556) [Link]

yeah that's pretty much it. You really can have < 1 HZ, there are lots of
physical phenomena like that.

Thanks

ron

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