e-gineer

Smelly weekend

The hot water system in our apartment building broke, leaking water down through the lift shaft. With no shower and extra sweat created coming up the stairs, this was a double blow.

I love the unlimited hot water in our apartment block and was amazed at how small the broken tank actually was (yes - it's in the crane shown in the video).

Video: Smelly weekend.wmv (3.8MB) | Smelly weekend (small).wmv (1.1MB)

DVD burning for backups on Windows XP

I had to recreate Synop's DVD backup burning capabilities today. After some searching and digging around I'm using:
  • cdrtools: Using mkisofs.exe we can create DVD ISO images greater than 2GB from the command line. This seems to be a project that stalled and has been carried on by others. In the end I found good information on the CDR Tools Front End site, which points to the latest unofficial versions on a German site.
  • Windows Resource Tools: From Microsoft, these tools include dvdburn.exe for burning the actual disks.

Here's a quick sample backup script that we use:

del "E:\backup\burning\FridayA.iso"
del "E:\backup\burning\FridayB.iso"
"C:\Program Files\cdrtools\mkisofs.exe" -v -J -R E:\backup\burning\FridayA\ > E:\backup\burning\FridayA.iso
"C:\Program Files\cdrtools\mkisofs.exe" -v -J -R E:\Backup\burning\FridayB\ > E:\backup\burning\FridayB.iso
"C:\Program Files\Windows Resource Kits\Tools\dvdburn.exe" D: e:\backup\burning\FridayA.iso
"C:\Program Files\Windows Resource Kits\Tools\dvdburn.exe" H: e:\backup\burning\FridayB.iso
"C:\Program Files\cdrtools\open_cd.exe" d
"C:\Program Files\cdrtools\open_cd.exe" h

Quiet & experienced modem beats newer, whining model

Since changing to iiNet for faster ADSL speed, I've been having connection problems with our modem. It seems to keep getting disconnected. Moving it into the kitchen, plugged into our apartments first phone socket seemed to help with stability, but not aesthetics. On top of this, it has been making a high pitched whine noise while connected. Not unusable, but definitely annoying.

Tonight I tried moving it back into the study, but got the same connection problems immediately. Upon moving it back to the kitchen they continued. In frustration, I tried plugging in the old Synop modem we got in late 2000. They are both Alcatel SpeedTouch, but we only got the whining modem in late 2003.

Suddenly our internet connection came to life! All this time I'd been assuming that our apartment building had a crappy phone line path to the exchange, although we live very close.

With the whining, newer modem our synch speed was about 2.5Mbps down and about 830k up.

With the quiet, old modem I'm getting 7.5Mbps down. Unfortunately, I'm unable to determine the upstream speed using the more primitive interfaces and tools. I only took the time to work this out when I was staggered at how much faster it actually felt to use. Yum!

Some tips for people who are playing with Alcatel SpeedTouch modems in an Australian ISP environment:

  1. The Oz Broadband Speed Test site is really helpful to get a sense of your speed. I found that Optus gave the fastest results.
  2. I used these instructions to upgrade my Alcatel SpeedTouch home modem to the Pro model. To be honest, I probably didn't need to bother since I'm not using the PPP features anyway at this stage.
  3. I used these instructions to upgrade the modem firmware. My modem only had obscure model numbers, so I was unable to work out exactly what type it is. I looked at the existing firmware version to try and guess the most suitable upgrade version. For me, it was an upgrade from KHDSAA.133 to KHDSAA3.264. You can download a lot of different firmware versions here.
  4. Alcatool was really helpful for getting line stats information from this older model modem which has an incredibly crappy web interface. Click the System button and then the Line Stats button to see your info. A good summary of the line stat terms is available here.

Now, if only there was a way to make US sites as blindingly fast as the Australian ones. I often still only get 30kB/sec to the US.

The mess

When shutting down offices, all the stuff has to end up somewhere. Unfortunately, that somewhere is currently my living room.

Video: The mess.wmv (1.8MB) | The mess (small).wmv (0.7MB)
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Copyright © 1999-2009 Nathan Wallace.