April 23, 2009
by Wm. Josiah Erikson (wjens)
Got a moment when the cluster wasn’t busy and put the RAM back in those nodes. Jean ordered some fans for me.
Power outage this morning, took down the blades. Since they boot up into reinstall by default, and the reinstall doesn’t work (you have to use PXE for the 64-bit nodes), and they take FOREVER to initialize on reboot, getting them back up and running was actually really annoying. How much is a 240V UPS that can handle a load of 4000W? Probably a lot. I should check into it though. Probably the blades don’t actually pull anywhere near that much power under normal circumstances, so maybe that’s overkill.
April 27th, 2009 at 9:15 am
Such UPSes appear to be in the $2K-3K range. That’s what I was afraid of. Ah well. I know… let’s spend $2500 to keep $5000 worth of hardware up and running in the rare case that we have a power outage… doesn’t seem worth it.