The UFS file system is the general-purpose, disk-based file system that is shipped with Solaris today and has been the default file system since early versions of SunOS 4.x. This sample chapter covers its history, architecture, and some basic administrative concepts.
So this is a sample chapter which Informit is providing, giving “credit” to IBM Press. Couldn’t be more wrong!
Solaris Internals is published by Prentice Hall, with no IBM Press involved.
That said, Mauro and McDougall are probably the pre-eminent authors on the topic, have a wealth of knowledge and understanding about how to present the information, and have a great writing style.
If you are at all interested in getting to know Solaris’ UFS then I thoroughly recommend getting a copy of their book (2nd edition of course). The companion volume, Solaris Performance and Tools, is also incredibly valuable especially if you want to get to grips with DTrace. Brendan Gregg, author of the DTrace Toolkit and now Sun employee, is co-author of this volume.