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LiveJournal Blackout Analysis Online

Posted by ryuzaki0 on from the when-it-all-hits-the-fan dept.

Hakubi_Washu writes "LiveJournal has posted their official analysis of what happened last Friday. Apparently someone "accidentally" pushed the emergency power off (which should keep all power off, even UPS), reset it and ran off. They had problems to come back up fast, because of "9 machines with faulty motherboards with embedded NICs that don't do auto-negotiation properly", Machines not fully rebooting for analysis reasons and few others. "

1 of 333 comments (clear)

  1. You, sir, are an idiot. by Anonymous Coward · · Score: 5, Informative

    Go ahead and read up on how auto-negotiation works. I'll wait...

    No, really. Go read up on it...

    Okay, since you don't bother reading up on it, and since you claim that someone's cheeky because they *document* what happens when you misconfigure a connection, I must conclude that you, sir, are indeed an idiot.

    (To summarize for those of you who won't bother to look it up, a NIC can sense the carrier for 100, so it can differentiate 10/100. Full and half are actively negotiated by the two sides of the connection. If side 'A' is hard set to 100/full, it won't negotiate with the other side. Hearing no negotiation, side 'B' will assume the NIC doesn't support full duplex connections and failover to half duplex. This is the proper, standardized, documented behavior. Anything else would require the psychic interface spec that *still* hasn't been finalized.)