Archive for May, 2009

Hanover in 2.3 Gigapixels

Posted by mark on May 25, 2009 under Photography

Hanover Triptych by W-Mark Kubacki

Hanover Triptych by W-Mark Kubacki

Last weekend I’ve grabbed my camera and climbed up Hanover’s Neues Rathaus to make a panorama of Hanover. I admit, I got a bit enthusiastic and shot about 390 pictures…

It was a hell of stitching the pictures together, but the result is a brilliant 2.3 gigapixel panorama.That is, about 3×12 metres if you wanted it printed at 400ppi.
The triptych displayed above is derived of it, consists of three 45×30cm pictures exposed on metallic photo paper. Its colors were intentionally shifted into silver to emphasize coruscation.

Update: Indeed, I do sell edited versions of the photographies, 3x A4 for 12€ and 3x 30×45cm (larger than 3xA3) for 27€. Printed on Kodak Metallic Endura paper at 400ppi.
S&H is 3€ for Germany. For larger formats up to 3×12m write me an email.

Update 2: I’ve received the first exposures from labs and their quality was surprisingly good (with one exception on the large format). Therefore the first lot of 3xA4 will be distributed after the holidays.

To save webspace I’ve reduced it to 1.5 gigapixels and compressed it as JPEG for you. To view it Read more »

Tags: , , , ,

TFTPd32 and DHCP Server – Windows Deployment Services without WDS

Posted by mark on May 19, 2009 under Technology

In other words, I’ve wanted to install Windows 7 over network without relaying on DVD drives, but neither wanted to copy the ISO file to USB stick nor install Windows Deployment Services (WDS) because it would need my Server 2008 Workstation to become an Active Directory Domain Controller – what I don’t want.

So, here is how you can use WDS without using WDS, how to install Windows 7 via network with TFTd32. Read more »

Tags: ,

RAID 5 and 10 on Adaptec 3805 – performance comparison

Posted by mark on May 14, 2009 under Technology

carriage-drawn-by-four-horses

Last weekend I’ve been evaluating my work on qKAI and thus worked extensively with datasets of about 30 GB in MySQL, with DBPedia dumps. To speed up file read I’ve added my spare fourth Western Digital WD6400AAKS to Adaptec 3805 RAID and:

  1. done online RAID level migration from RAID 5 with three HDD to RAID 10 to four HDD,
    in the hope writing performance will increas as suggested by this article
  2. ran ATTO disk benchmark on the new array
  3. been unsatisfied, and (again) converted the RAID 10 to a four-drive RAID 5
  4. now been puzzled about Windows Server showing free areas strangely
    and not letting me expand the primary partition the volume’s new size

Conversions took Read more »

Tags: ,

MySQL with Sphinx storage engine

Posted by mark on May 7, 2009 under Development

mysql-sphinx

Today I’ve launched Visual Studio 9 2008 and compiled Sphinx, the full-text indexer, as storage engine into MySQL. I’ve limited my effords to the latest 64bit Windows version, because compiling under Linux is with GCC rather trivial.

MySQL 5.1 with SphinxSE for 64bit Windows can be downloaded here.

Just replace your original MySQL files by these from the zipfile.

Tags: , , , , ,

Next Page »