Re: sequential disk read speed

>> Why can a disk only read 64KB at a time? Is this a valid assumption? Is this a disk limitation or a file system limitation? <<

The author has to provide some numbers to show how to calculate an estimation for disk access. Frankly, 64KB seems a little small for a modern computer other than a desktop machine.

What you might consider is the rise of solid state storage, which will start replacing moving disk hardware in the next few years. This with multi-core processors will change database design radically. We work in a trade where everything you know is wrong in five years :) Received on Fri Aug 22 2008 - 09:13:45 CDT