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Solaris Feed

Oracle Solaris, Solaris 10, Solaris 11 Express, Solaris 11, Oracle VM for SPARC and Illumos resources, news, and support articles.

Solaris System Configuration Files

For details about the files and commands summarized here, consult the appropriate man pages or Solaris Documentation

File
Description
/etc/bootparams Contains information regarding network boot clients.
/etc/cron.d/cron.allow

Book Review: Solaris Internals

This book should be in the library of any serious Solaris administrator. It is not a book for beginners, but it is well-organized and well-explained. The authors went to a great deal of trouble to clean up the parts of the original edition that were not as easily understood, and their effort shows.

The examples are clear and well-explained, and the information is indexed and cross-referenced in a way that makes it easy to follow threads across chapters.

The authors of this book have been extraordinarily generous with their time and energy.

Sun System Bus Sizing

This is an older posting I made to the original Solaris Troubleshooting site. The information is a little dated in terms of available hardware options, but the concepts and philosophy are the same.

The system bus has a fixed bandwidth. Too many devices on the bus can create more traffic than the bus can handle, which results in contention and packet loss.

Book Review: The Practice of System and Network Administration

System Administration as a Profession

"The Practice of System and Network Administration" is different from most of the other technical books on a professional SA's bookshelf. This book is about how to become a professional system administrator.

The profession is about more than knowning obscure options to different commands. To become a professional, a system administrator needs to change mindset from a straight-ahead techie to a member of the team who has specialized expertise.

System administration has not always been recognized as a profession.

Solaris Kernel Tuning

sysdef -i reports on several system resource limits. Other parameters can be checked on a running system using adb -k :

adb -k /dev/ksyms /dev/mem
parameter-name/D
^D
(to exit)

More information on kernel tuning is available in Sun's online documentation.

Oracle Solaris and SPARC Performance, Part 3

Moving on from database, more world record performance, this time with Java. From the BestPerf blog:

IPC Issues

Most of the InterProcess Communication parameters are reported by sysdef -i . Other parameters can be checked on a running system using adb -k :

adb -k /dev/ksyms /dev/mem
parameter-name/D

Oracle Solaris and SPARC Performance, Part 2

Continuing on the performance theme: Oracle's SPARC T5-8 server is now the world's fastest single server for Oracl

mdb ::if

The Solaris mdb(1) live and post-mortem debugger gained a really powerful new dcmd called ::if in the Solaris 11.1 release.

As a very quick example of how powerful it can be here is a short one liner to find all the processes that are running with their real and effective uid

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