Magnetic dust

A hard disk goes down in flames through the atmosphere and specialists were still able to recover 90 percent of the data: Data recovered from Seagate drive in Columbia shuttle...

Load Average

It´s a common practice between us admins to look after the load averages. Interestingly the correct math behind this numbers is not really simple. Roman wrote about it at How...

Spring

Pfingsten in Barßel

Der 80igste Geburtstagsfeier meines Grossvaters mütterlicherseits ist hinter mich gebracht, elterliche Grillage im Magen versenkt und jetzt einfach nur noch aufm Balkon oder auf der Terasse sitzen und sich den...

COMSTAR in build 90

The new Common SCSI Target Framework made it into build 90 of Opensolaris. In this first integration, the target mode driver for qlogic cards ins included. It´s now really easy...

links for 2008-05-11

Linux File Systems: You Get What You Pay For (tags: linux filesystems)

links for 2008-05-10

Designing and implementing malicious hardware (tags: CPU hardware research security)

2000 Downloads of the LKSF book

2000 downloads of the “Less known Solaris features” book in four days. Pretty cool. I have already some plans for the future. It will stay free under the Creative Commons...

VomitOne

Alec Muffet coined this phrase for the final day of the JavaOne. Somehow the Norovirus was found at the JavaOne. The symptoms of norovirus illness are nausea, vomiting, diarrhea, and...

Less known Solaris Features: About crashes and cores

It´s getting warmer, so this tutorial is a little bit shorter. It´s about the a really hated topic: Panics, crash dumps, core dumps and the tools to manage and leverage...

Less known Solaris Features: About crashes and cores - Part 5: Conclusion

The Solaris Operating Environment has several functions to enable the user or the support engineer in the case something went wrong. Crash and core dumps are an invaluable resource to...

Less known Solaris features: About crashes and cores - Part 4: Crashdump analysis for beginners

Okay, now you have all this crash and core dumps, it would be nice to do something useful with it. Okay, i show you just some basic tricks to get...

Less known Solaris features: About crashes and cores - Part 3: Controlling the behaviour of the dump facilities

Solaris has mechanisms to control the behaviour of dump mechanisms. These mechanisms are different for crash and core dumps. Crash dumps You can configure the content of crashdumps, where they...

Less known Solaris features: About crashes and cores - Part 2: Forcing a dump

Okay, a dumps are not only a consequence of errors. You can force the generation of both kinds. This is really useful when you want to freeze the current state...

Less known Solaris features: About crashes and cores - Part 1: Introduction

No software is without errors. This is a basic law of computer science. And when there is no bug in the software (by a strange kind of luck) your hardware...

ZDnet about Linux and Solaris.

A really interesting article written by Jason Perlow at ZDNet: Unixfication II. It´s an insightful article about the different ways to define scalability in the Linux and Unix community and...

links for 2008-05-08

TeX Tutorial Ein TeX Tutorial das unter anderem von einem Kollegen von mir geschrieben worden ist :) (tags: TeX) Futurama - Vergleich zwischen Original- und Synchronfassung - satre synchron (tags:...

OpenSolaris is here to stay

Sometimes you read articles like this and you think “Dear author, whatever you did smoke, don´t smoke it again”. I was temped to write a harsh comment about this, but...

links for 2008-05-07

Uperf - A network performance tool (tags: benchmark network performance tools)

Less known Solaris Features - the book

As my time allows it, i´m continue to work at the “Less known Solaris Features” book. You can download it here.. There will be no further announcements about the document...