c0t0d0s0.org

To end all questions and rumours about Rock ... this is the presentation held by my colleagues at the recent HotChips conference. Rock is alive and very healthy.


(click here to view)

I´m just waiting for the aircraft to Toulouse. I´m looking forward to the better weather, the nice landscape and visiting friends there ... I don´t know if i find time to blog there but i start to like the concept behind the word "vacation"

They don´t have their own A380 aircrafts but after Air France/KLM there is a second airline interested in a even bigger A380 as Mr. Gallois disclosed in a newspaper interview. The german Lufthansa wants this plane, too. The A380-900 would be able to carry 963 passengers.

You may have noticed, that the Sun Blade Servers don´t have Ethernet or FC on board. They just have 4 PCI-E connections to the outside world (2 to the NEM slots, 2 to the PEM slots). Sun announced an really interesting new NEM.

24 ports in total, 10 Gigabit-Ethernet Ports, 10 10-Gigabit-Ethernet-Ports and 4 SAS Ports for outside connections to SAS drive enclosures (albeit not supported in the initial release). You will find further specification on the website for the Sun Blade 6000 10GbE Multi-Fabric Network Express Module By using this module every blade has 1 GBE and one 10GBE port and you can put up to two modules in a Blade 6000. So you have a redundant production network connectivity, redundant admin network connectivity and still two free PEM slots for Infiniband or FC.

I had an interesting discussion with a blog reader and customer via icq (oh wonderful new world of business). It started with a question about the J4500 and it ended in the the discussion, if MAID is really a viable way for storing data of if it´s just one of this hypes working their way through the storage business every year.

MAID? What is MAID? MAIDs are Massive Arrays of Idle Disk. The idea is to save power by switching of disks in the case they aren´t in use. You can buy such components from companies like Copan.

There is a new resident in my home office. I´m jumpstarting fangorn at the moment. fangorn is a Sun Ultra 60 workstation (dual-proc UltraSPARC II system with 450 MHz on each proc and 1,5 GB memory). The Ultra60 line had it´s GA in 1998. This was shortly after my first contact with Sun systems. I purchased it for a few euros from a colleague to rescue it from his cellar and to have a multi-proc SPARC system for some testing. I think, fangorn is a good name for such an venerable system.

Sun and Fujitsu have started to deliver systems with the 4 core SPARC64 VII. But Fujitsu already talked about the next generation at the HotChips conference: An 8 core processor in development and they hope to talk about this a little more at the HotChips next year. 8 core SPARC64 would lead to a 1024 threads M9000 ... 4 Teraflops in a single operating system image.

Relatively short after the crash there were rumours about deployed thrust reversers at one of the engines of the Spanair aircraft and shortly after this you were able to find a photo (login needed) of this engine at the usual discussion areas. Today two spanish newspaper reported according to Aviationweek and the german newssite sueddeutsche.de (based on dpa) that the thrust reverser of one engine were found in the deployed position.

Albeit this would explain some of the reported reactions of the plane, it´s much to early to draw any conclusions. The question is now: Were the reversers in this position before the crash or were they moved in this position by the crash. We have to wait for the final accident report ...

PS: Nevertheless this evoked memories to the LaudaAir 004 crash in me: Mid-air deployment of the reversers in 24,700 feet. Nobody in the aircraft survived the crash.

I´ve uploaded another early pdf of the tutorial. I´ve added some text and the first to figures. Kerberos is just one of the topics where you should explain only the configuration or you have to explain it almost completly. You can´t explain just a few things and still hope your explanation makes sense.

Kris zeigt in Mein privates Datawarehouse - Sparen mit MySQL wie man mit der CSV-Export-Funktion des Sparkassen-Homebankings, Mysql und einigen Gedanken sich ein eigenes Data Warehouse bauen kann, um die Geldsenken im eigenen Budget zu finden.

Reichen 4 GB fuer eine Seele? Hängt vielleicht von den darin befindlichen Abgründen ab. Und wie gut lässt sich eine Seele komprimieren? Und wie oft muesste man Diffs sichern?