Dirk von Suchodoletz's Blog

The experiments and floppy disk imaging in Berlin left us pretty optimistic, that our hardware setup for the recovery task, especially the Mitsubishi floppy drive is working properly. We got a stream image of every disk that we can analyze further. Of course we hoped that we would get results by just running the Kryoflux […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

26th Sep 2016  9:27 AM  2197 Reads  No comments

After we found out about the fdrawcmd and the characteristics of the Nashua and its track 0, we hoped to reproduce it on the relevant disks. Unfortunately no success here. We had to rule out possible problems like: The disks were not formatted at all (because of being backup disks – at least some labels […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

13th Sep 2016  11:38 AM  1859 Reads  No comments

One of the major challenges is the lack of experience with the 8” drives and floppies. Thus, a trial and error was the approach we used. The knowledge needs to be unearthed step-by-step hoping to find the relevant bits and pieces to get the stuff working in the intended way.  In parallel we tried to […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

9th Sep 2016  8:30 AM  1776 Reads  No comments

Proceeding with our 8″ recovery project: After a short while the 24V power supply and the cable adapter board arrived from the U.S. Both have power requirements and fit traditional PC power cable sockets. To actually connect the 8” drive without external power supplies the machine should contain a 3.5” floppy disk power connector and […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

6th Sep 2016  10:33 AM  2743 Reads  No comments

Over the last 30 years many hardware concepts came out of use. Parallel data cables are not common any more. They got superseded by fast serial connections like e.g. SATA for traditional parallel IDE. One of the longest lasting standards, the 34 pin floppy controller connector, came out of use too. Fortunately, not too long […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

2nd Sep 2016  2:17 PM  3695 Reads  No comments

A while ago the digital preservation team of the professorship in communication systems got involved in Digital Archaeology and Forensics of some old floppy disks of unknown origin. It was a cooperation with The Archives NZ being asked to identify the content of 5.25” disks. The hardware part – reading the disks and producing images […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

1st Sep 2016  1:17 PM  3807 Reads  No comments

During and around this year's iPRES a couple of discussions sprung up around the topic of proper software archiving and it was part of the DP challenges workshop discussions. With services emerging around emulation as e.g. developed in the bwFLA project (see e.g. the blog post on EaaS demo or Digital Art curation) proper measures […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

10th Oct 2013  1:51 PM  15472 Reads  2 Comments

Emulation-as-a-Service (EaaS) can simplify the provisioning of emulation for end-users' needs without requiring them to install and configure complex toolchains on their devices. Beside single machine instances the user is directly interacting with, more complex setups for networked services as in preserved business processes or research environments are required. This involves computer networking between nodes […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

4th Jul 2013  10:46 AM  11992 Reads  No comments

The typical digital artefact or complex object does not function (render, execute, …) without a certain software environment. Emulation-as-a-Service (EaaS) provides original environments running in platform emulators. Depending on the (complex) object to be handled, several software components are required to reproduce an original environment. Often, these components are proprietary and require a software license. […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

1st Apr 2013  2:23 PM  13618 Reads  3 Comments

A couple of preservation workflows (such as full system preservation through imaging) or processing in digital forensics depend on reliable hardware-software stacks for identity system disk migrations. As especially the x86 platform is moving forward very fast, the hardware and software changes rapidly. Even if the standard suggests compatibility, there are a number of pitfalls […]

By Dirk von Suchodoletz, posted in Dirk von Suchodoletz's Blog

20th Mar 2013  10:28 AM  12462 Reads  No comments