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The Isoblog. Posts

To France…

A few days ago, a few of “us” have been to france. On a cold November morning in a brand new data center hall, we had a look at some Version 1 OCP racks, and a very nice conversation with a bunch of friendly people interested in getting the foundation going.

A OCP Version 1 rack, with three power zones. You can see the centralized power supplies at the bottom of each of the zones.

See Open Rack Specs and Designs, the Open Rack Standard 1.2 Spec and Facebook Open Rack V1 Specification. There is also the Facebook V1 Power Shelf Specification.


What goes into a battery…

Tom Randall has a Twitter thread on battery cost.

Tom Randall has a Twitter thread on things that affect battery price for LiIon battery packs of electric cars. »If lithium prices quadruple, the cost of finished battery packs would only go up 1.6%, and the sticker price of an electric car will see almost no impact. Some people may get rich off metals in the meantime, but it’s not going to slow down the transition to electric cars.«

His research also covers Cobalt, Nickel and Manganese. His estimates:

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Redfish, Rack Scale Design and Remote Anything

The Intel RSD Platform Guide (PDF) is the one document you should skim front to back, it’s really useful.

Back in the bad old time, server computers had a proprietary  management controller (BMC), for example HP iLO or Dell iDRAC. These varied widely in capabilities, and worse, in data structures presented to the management software controlling the data center.

A lot of standards came, and failed, until pressure from certain customers with a lot of machines, everybody kind of centered around Redfish. All modern servers, no matter who makes them, understand Redfish.

But Redfish does not stop at the server, nor is it the whole story. It is cross linked to Rack Scale Design (RSD), which is an initiative lead by Intel and joined by many vendors to build composable hardware.

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Fertig gelesen: How to Make a Zombie

Frank Swain takes us on a tour of the myths, stories and historic reports of the undead corpse throughout the history of humanity. Referencing sources and quoting people, he shows us the various aspects of the mindless physical body shuffling around after the soul departed, and how that as a theme has been following us around throughout our history.

The first chapter deals with the “original” haitian zombies, later chapter take us to victorian experimentation with corpses of the executed, soviet experiments and many other encounters between humans and the living undead.

How to Make a Zombie
Frank Swain
EUR 11.66 (Kindle)

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Fertig gelesen: The Zombie Survival Guide

Max Brooks, author of World War Z, delivers a straight on, zero tongue in cheek, nitty-gritty survival guide for the coming Zombie Apocalypse.

The book delivers exactly what is promised in the table of contents: The Solanum Virus and how it works and does not work, Weapons and Combat Techniques that work, defending your home, public spaces or other places, how to organise a breakout or run, useful equipment to have or to loot, and then fighting back and finally containing the outbreak. The book concludes with a list of documented outbreaks in the past, and their handling.

The book is written completely straight and is full of useful advice for fighting a Zombie Apocalypse or containing an outbreak, but also a useful source book for roleplaying and storytelling games.

The Zombie Survival Guide
Max Brooks
EUR 4.99 (Kindle)