Archive for the 'Toys' Category

SSDs and Linux Native Command Queuing

Sunday, August 9th, 2015

Native Command Queueing Native Command Queuing (NCQ) is an extension of the Serial ATA protocol that allows multiple requests to be sent to a drive, allowing the drive to order them in a way it considers optimal. This is very handy for rotational media like conventional hard drives, because they have to move the head […]

Fun with Supermicro motherboard serial headers

Friday, June 19th, 2015

or, “LOL, standards” TL;DR: Most motherboards have a serial header in an IDC-10 (5×2 pins) arrangement with the pins as a row of even numbered pins (2,4,6,8,X) followed by a row of odd numbered pins (1,3,5,7,9). Supermicro ones appear to have the pins in sequential order (6,7,8,9,X and then 1,2,3,4,5). As a result a standard […]

OneRNG kickstarter arrived!

Saturday, June 6th, 2015

My OneRNG kickstarter arrived today. I had five units, so I chose three external models and two internal ones. The finish of the external model isn’t really up to the quality of an Entropy Key. Here’s a picture of them together. Given that the external model looks rather flimsy — I could imagine it getting […]

Has your CurrentCost ever done this?

Friday, May 15th, 2015

Update: Replacing the battery and retraining the receiver fixed it. I suppose it must have had enough juice to flash the LED but not transmit. A few days ago my CurrentCost starting reading just dashes. There’s also no transmitter icon, so I think it’s not receiving anything from the transmitter. It looks like this: I […]

Home file server / disk enclosure troubles

Wednesday, April 1st, 2015

On March 26th the file server here at home started resetting one of its ATA links over and over, in a couple of bursts each hour. Like this: Mar 26 13:38:34 specialbrew kernel: [5137674.573170] ata5.03: exception Emask 0×0 SAct 0xc0 SErr 0×400000 action 0×6 Mar 26 13:38:34 specialbrew kernel: [5137674.579164] ata5.03: irq_stat 0×00060002, device error […]

Adventures in entropy, part 2

Monday, June 7th, 2010

Recap Back in part 1 I discussed what entropy is as far as Linux is concerned, why I’ve started to look in to entropy as it relates to a Linux/Xen-based virtual hosting platform, how much entropy I have available, and how this might be improved. If you didn’t read that part yet then you might […]

Adventures in entropy, part 1

Sunday, June 6th, 2010

A while back, a couple of BitFolk customers mentioned to me that they were having problems running out of entropy. A brief explanation of entropy as it relates to computing Where we say entropy, we could in layman’s terms say “randomness”. Computers need entropy for a lot of things, particularly cryptographic operations. You may not […]

Gating Twitter to IRC using Perl and Net::Twitter

Monday, November 3rd, 2008

The other day I had a strop about someone carrying on a Twitter conversation in IRC, since I didn’t have a Twitter account and had no idea what people were talking about. It was at that point that I floated the idea of gating the channel members’ tweets into the channel so I would still […]

R. E. Perot, get gold card soul / My joy of life is on a roll

Saturday, February 2nd, 2008

I thought I’d treat myself to some toys. With FOSDEM and other events fast approaching I decided I should buy myself a new compact camera as the Konica DiMAGE I have now is just too big to carry around all the time. I’m no camera expert and certainly not a very good photographer so I […]

Dear Lazyweb, help me set up my audio

Saturday, June 24th, 2006

In times past, when I had a desktop computer, I’d always have to be in that one place to use it, so attaching speakers to it was a reasonable way to play music while I worked. These days I only have a laptop for my personal computing needs, and all my data is on a […]