So prohibiting someone from pushing a button differed in what way from allowing them to pull a plug? I can understand there may have been some difference in state when/if the machine was rebooted. If I just wanted the machine to cease sucking power, what's the difference? I never wanted that box to exist, or come back to life, in whatever color. On Sun, Jul 1, 2018 at 8:20 PM, William Corcoran wrote: > No! no! no! The 3b2 was one of the first supermicros to fully integrate > power management with the system. Yanking the cord would be unthinkable > mainly because it was unnecessary. The shutdown script would remove power > to the the system once the system safely went down and buffers were > flushed. You could also depress this massive rocket switch on the side of > the unit and it would kick off the powerdown script. It is noteworthy that > the 3b2 power switch was stateless...allowing human and computer to turn > off the power. > > Finally, the 3b2 is probably the only system in the world with system > diagnostics so in depth that they were nearly as significant as the > operating system. It’s a telecommunications thing. Interestingly, the > color of the 3b2 was similar to a VAX Brown and White. > > > On Jul 1, 2018, at 6:24 PM, John P. Linderman wrote: > > Puns aside, anyone who didn't consider pulling the plug was probably not > someone who should be bringing the system down. > > On Sat, Jun 30, 2018 at 10:17 PM, Greg 'groggy' Lehey > wrote: > >> On Saturday, 30 June 2018 at 7:15:07 -0400, Norman Wilson wrote: >> > Ron Natalie: >> > >> > My favorite 3B2ism was that the power switch was soft (uncommon then, >> not so >> > much now). I seem to recall that if the logged in user wasn't in a >> > particular group, pushing the power button was a no-op. You didn't >> have >> > sufficient privs to operate the power. >> > >> > ==== >> > >> > Surely you mean the current user didn't have sufficent power. >> >> Or was experiencing too much resistance? >> >> Greg >> -- >> Sent from my desktop computer. >> Finger grog@lemis.com for PGP public key. >> See complete headers for address and phone numbers. >> This message is digitally signed. If your Microsoft mail program >> reports problems, please read http://lemis.com/broken-MUA >> > >