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RAID Pain

One of my clients has a NAS device. Last week they tried to do what should have been a routine RAID operation, they added a new larger disk as a hot-spare and told the RAID array to replace one of the active disks with the hot-spare. The aim was to replace the disks one at […]

Smart Phones Should Measure Charge Speed

My first mobile phone lasted for days between charges. I never really found out how long it’s battery would last because there was no way that I could use it to deplete the charge in any time that I could spend awake. Even if I had managed to run the battery out the phone was […]

One Android Phone Per Child

I was asked for advice on whether children should have access to smart phones, it’s an issue that many people are discussing and seems worthy of a blog post.

Claimed Problems with Smart Phones

The first thing that I think people should read is this XKCD post with quotes about the demise of letter writing […]

BTRFS Status June 2015

The version of btrfs-tools in Debian/Jessie is incapable of creating a filesystem that can be mounted by the kernel in Debian/Wheezy. If you want to use a BTRFS filesystem on Jessie and Wheezy (which isn’t uncommon with removable devices) the only options are to use the Wheezy version of mkfs.btrfs or to use a Jessie […]