The Art of Capacity Planning

The Art of Capacity Planning (キャパシティ プランニング)
John Allspaw
ISBN 978-4-87311-399-9 (Japanese translation)

This book is worth reading.
Author of the book works for Flicker, and he explains without stint very much practical techniques for capacity planning which he is performing at Flicker.

BTW, now I'm feeling that in order to have really essential insights on scale-out computing one has to have experiences working on large scale systems like Flicker, and I'm wondering what I can achieve at the R&D project I'm working on at work...