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A little bit more bandwith

Wednesday, 03-Aug-2011

Something happend...

It is not really "Breitband" but better than nothing. And better than before: DSL 2000

So my plea for more bandwith finally was heard! And we really can use it here... in the middle of nowhere

Background:
The speed-up was realized with Rate Adaptive Mode. It is a technique to handle speed rates of DSL connections dynamically. For the long history of T-DSL RAM see this thread at onlinekosten.de (german).

More of this bandwith please

Tuesday, 18-Aug-2009

This is my vote for this thing called "Breitbandstrategie der Bundesregierung":

It's time something faster comes to this place!

Backups: eSata, USB and FreeBSD

Wednesday, 25-Mar-2009

Backups are stored on external harddrives here. Important data is stored on the Family Server and from there I regularly make backups with tar onto a USB harddisk (using a dirty bash script that has no intelligence: sorry, no listing).

Recently I've grabbed a external enclosure with hotswap as well as USB 2.0 and eSata ports (FANTEC MR-35US2). Until now I didn't had the time to play with eSata and the mainboard also doesn't have a real eSata port. A tiny adapter in a slot bracked solved this issue and after the update to FreeBSD 7.1 it felt right to give it a shot.

A quick read on some mailinglists and forums revealed that after powering on the disk and connecting it via eSata a # atacontrol attach channel-no should do the trick. Well: it did not, at first. I got # atacontrol: ioctl(IOCATAATTACH): File exists

Some tries later I found that detaching it first (though there was nothing attached previously) works: # atacontrol detach channel-no # atacontrol attach channel-no Now the drive is ready for mounting.

Some notes after testing:

  • detach first, then attach
  • never connect USB and eSata at the same time
  • plugin in the harddrive correctly: you need to hear it spin up after powering on

I did some benchmarking with bonnie to get a feeling of possible speed improvements. Used disk is a SAMSUNG SP0411C/R/UU100-05 40GB drive: -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU usb-40 1000 25078 19.7 24524 4.6 11110 2.4 17058 19.7 23623 2.4 483.9 0.9 esata-40 1000 52018 40.5 50939 9.6 16946 3.6 27835 32.0 41307 4.0 565.2 1.0 It's just a testdisk, backups are done to a 360GB Western Digital drive. I may repeat benchmarking with that one. Just need to do some more testing to see if eSata is stable enough to do backups with it.

Upgraded (finally)

Sunday, 22-Jun-2008

Finally I have moved my little server to the new hardware. I had to use a very inefficient PSU so the power-consumption of the idle system more than doubled (from ~21W to ~44W). Maybe I'll grab some PicoPSU to get reduce this. All hardware notes to the system are in Our Server.

For comparison and sentimental ;) reasons the old systems description is still available here.

Upgrading thoughts (2)

Monday, 02-Jun-2008

After some more searching and even more thoughts ;) I've grabbed some cheap hardware for my little server:

  • ABIT AN-M2
  • AMD Sempron64 LE-1100
  • 1GB MDT DDR2 Ram
  • Arctic Cooling Alpine 7

Having attached a 500GB Samsung HD501LJ and a temporary DVD-Rom I installed FreeBSD Release 7.0. Well, let's see which of my requirements (see previous news) are met:

  • FreeBSD > 7 compatible - OK
  • onboard Nvidia/Marvell combination with nfe driver, OK
  • a minimum of 4 Sata Ports - OK
  • eSata
  • underclocking/undervolting via OS or BIOS to reduce power consumption - OK
  • optional: onboard graphics that can be disabled. OS can boot without it. - partly OK, saves no power
  • ATX/µATX - OK, its µATX
  • overall power consumption less than 50W idle - OK, its less than 45W idle
    • ~41W idle with 100Mbit link and powerd
    • ~44W idle with 1000Mbit link and powerd
    • ~49W idle with 100Mbit link without powerd

FreeBSD was installed as i386, it's just for testing. What saved me ~8W idle and put the system down to around 45W is powerd (QnC enabled in BIOS is a requirement!). Enabling it in rc.conf was easy done with:

powerd_enable="YES" powerd_flags="-a min -b min"

Upgrading thoughts

Sunday, 18-May-2008

Since I'll have Gbit capable wiring in my new home, I need to find some hardware that can make use of it. My current stuff is using 100Mbit NICs only, except for my MPPC. The clients will probably be upgraded 'automatically' when hardware is exchanged.

What troubles me is my little server. The current Epia VE5000 is too slow. Even if I put in a Gbit NIC the processer would be too slow. The only PCI slot is taken by a USB 2.0 adapter, anyway. And since it's running 24h a day I'm looking for fast, meaning Gbit capable, and energy efficient hardware. Cost is also a criteria, of course. Focus is on the mainboard since it defines all other components.

Some unsorted requirements:

  • FreeBSD > 7 compatible
  • Gbit NIC != Realtek, Marvell or Intel would be good
  • a minimum of 4 Sata Ports
  • eSata
  • underclocking/undervolting via OS or BIOS to reduce power consumption
  • optional: onboard graphics that can be disabled. OS can boot without it.
  • ATX/µATX
  • overall power consumption below 50W idle

I found the forum at meisterkuehler.de/forum (german) very useful. They have a special section for energy saving and lots of people post their setups with power measurements.

Movin'

Thursday, 15-May-2008

We're currently renovating a new home: my girlfriend and me have to be out of our current appartment on July 31th. Besides all the thougts about a new kitchen and bath, energy-saving windows, what type of floor,...

... I have grabbed 500m of CAT7 cable. Half of it has been put into walls/pipes.

Future network distribution room

Future network distribution room (1)

Future network distribution room

Future network distribution room (2):

Look out for those cables!

Found the cable?

The only problem is: most of my hardware is 100Mbit only, so some effort will need to be put into upgrading thoughts. I'd be happy to fully load those cables with some bits!

Some more coffee (musik)

Sunday, 16-Mar-2008

Have some different 'coffee musik': johncoffe.de/Musik

johncoffee - cover

A coffee a day ...

Wednesday, 12-Mar-2008

Accidentally produced some sort of Latte art when I just wanted to have my double shot espresso with foamed milk.

coffee_apple.jpg

Try searching youtube or google for Latte art or just follow the link to wikipedia above and some Barista will show you what real Latte art is about!

... produced with my Silvia.

Playing with a new template

Friday, 15-Feb-2008

I'm playing with a new look for my website. It's a template from Open Source Web Design named Coffee N Cream made by Arcsin. It's not hard to integrate such a template into Etomite, but finding all the details takes some time.

Please be patient if something looks strange, I'll try to fix it within the next days.

MediaPortal PC guide updated

Thursday, 27-Dec-2007

I've updated the little guide to install a HTPC based on Windows XP and MediaPortal.

tb_monochrome_preview.jpg

read on ...

This screenshot compliation shows the Monochrome skin I'm currently using for MediaPortal.

Aquaristic Diary

Saturday, 07-Jul-2007

I've added a link to my little aquaristic diary. It's in german but there are many pictures also so you might enjoy taking a look.

Encrypt your passwords!

Friday, 13-Apr-2007

Folks, I'm using software to securely store my passwords for about 6 years now and currently are really satisfied with KeePass. I use it at home and just have introduced it in my new job.

If you're fiddling about with some excel sheet to 'manage' your passwords just stop it and find something else. KeePass is a possible choice.

The important features are:

  • Portability - running an lots of platforms including Windows, Windows Mobile, Linux, FreeBSD. Converters for other software are also available
  • Fast search - Manage folders within KeePass to structure your passwords but use the search to find them all
  • OpenSource, Free Software and established algorithms

Read on for a quick intro.

Full Story

Syslog-NG and m0n0wall

Saturday, 24-Mar-2007

I wanted to store m0n0wall's log files on my small server to keep them for review. As a default m0n0wall writes its logfiles to a local ramdisk which means that all logs are gone when the system is rebooted. There is also a time limit in m0n0wall syslog daemon so older log entries are automatically deleted.

Read how to save m0n0wall logs permanently for reviewing.

m0n0wall resources

Tuesday, 15-Aug-2006

I've collected some resources for the m0n0wall fans out there. Besides the offical release and beta downloads there are some unofficial downloads for testing and development. If you want to get deeper into m0n0wall be sure to check these out.

Full Story

Acronis and Host Europe

Monday, 31-Jul-2006

After I recently moved this website to Host Europe I figured that there was a free version from Acronis True Image included. Unfortunately it was the old 8.0 version but just now I checked: it's the new 9.0 version in a personal edition. I downloaded the 76MB package and am very satisfied. I does not support backing up separate files or folders but the rescue disk can make snapshots of my MPPC just before testing the latest feature. And it's a good replacement for the old Norton Ghost 2003 I was running until now.

TCM 212845 Manual and Codes

Monday, 17-Jul-2006

Since I updated the site to Etomite the links for downloading the TCM 212845 manual and codes were broken. Sorry for that, it's corrected now.

Download TCM 212845 manual and codes

Gallery Plugin

Tuesday, 27-Jun-2006

Last week I also managed to install and configure the EtoGal Snippet. This is now used for the Pics section.

After playing with various gallery snippets for Etomite I'm very satisfied with this one: easy to use, upload and resizing via webfrontend.

Grab the installations instructions from here before you begin!

Etomite is cool

Monday, 19-Jun-2006

Etomite is just cool! I wanted to have some random content showing up on each page and had it setup in no time.

  • installed this snippet
  • added some chunks with the content
  • and added the snippet to the site template
Thats it!

Old website, very old

Thursday, 15-Jun-2006

I was just browsing my website archives and found a backup of the first version of www.edain.de. Well, color choosing was never my strength:

Very old website

English only

Thursday, 15-Jun-2006

From now on new content on this site will be english only.

There is some german stuff on this site too, for historical reasons, but I'm to lazy to translate it all.

Celeron-M Upgrade

Sunday, 04-Jun-2006

Upgraded my PC and MPPC to a Celeron-M System. Very cheap but great hardware, both running at 1.7Ghz. On my MPPC it gives much better performance regarding to the 1.8Ghz Athlon XP System I used before.

German 3DCenter has some good reading on Celeron-M performance:

Moved to new provider

Sunday, 04-Jun-2006

The site has moved to a new provider because I wanted to play with some CMS systems. PHP and database support is needed for this and so I got rid of my old 1und1 account. The site is now hosted at Hosteurope.

I took the chance and migrated the site to a use Etomice CMS. Sorry if any links are broken now, but most content has been moved to the new system and hopefully is easy to find.

PC entsorgt

Sunday, 16-Apr-2006

Das große Gehäuse meines PCs hat mich genervt. Bin auf ein altes µATX System umgestiegen und muss jetzt zwischendurch auch mal auf ein Fenster warten.

Infos zur neuen, alten Hardware

Kleine Updates

Sunday, 05-Mar-2006

Hab ein paar Bauteile zwischen meinem PC und dem MPPC jongliert und die Infos entsprechend aktualisiert.

Neues Review: Samsung LE-27T51B

Saturday, 21-Jan-2006

Ich musste mir einen neuen Fernseher zulegen. Meine alte Röhre hat den Geist aufgegeben.

Fündig geworden bin ich im Angebot von Samsung. mehr ...

Howto: Mediaportal PC

Wednesday, 07-Dec-2005

I have written a small howto that describes the setup of a MPPC; a HTPC running Media Portal. The howto concentrates on the steps to setup the base system and describes the install order. For configuring Media Portal take a look at the Wiki or forum.

Read the howto: Howto - Mediaportal PC

WLAN protection with m0n0wall and TauVPN

Saturday, 02-Jul-2005

A new howto that describes the steps to secure a WLAN using m0n0wall and TauVPN.

Find out more: WLAN Protection

HiFi Equipment

Friday, 25-Mar-2005

Der Bereich Computer Equipment ist um ein paar Infos zu meinem kleinen HiFi System reicher geworden.

Computer Equipment

Monday, 10-Jan-2005

Ich habe eine Sektion für mein PC Equipment hinzugefügt. Wenn man in Computerforen unterwegs ist, hilft es ungemein, eine Liste seiner eingesetzten Hard- und Software parat zu haben.

Bis vor kurzem hatte ich das bei Nethands, bin jetzt aber auf meinen Webspace umgezogen. So bin ich flexibler.

Linux Mailserver Howto

Wednesday, 18-Aug-2004

Jetzt, da mein Server auf FreeBSD umgestellt ist, hab ich das Mailserver Howto für Linux fertig. :)

Mailserver Howto

Keine Aprilscherze hier, dafür neue Fotos

Thursday, 01-Apr-2004

Bilder vom "Eiswunder" in Schwalmstadt, aufgenommen am 1. Dezember 2003. Aussergewöhnliche Fotos eines aussergewöhnlichen Ereignisses.

Kleine Umstrukturierung der Seite

Sunday, 21-Mar-2004

Habe die Artikel Sektion in Howtos und Reviews aufgeteilt. Ausserdem überarbeite ich gerade das Mailserver-Howto.

Neuer Artikel: Lancom VPN

Thursday, 05-Feb-2004

Kurze Anleitung zur Einrichtung eines VPN Tunnels zwischen zwei Netzwerken mit dynamischer IP Adresse.

Zum Artikel