Encrypted SnapRAID

If you have read my previous SnapRAID tutorial, you will see that I’m a big fan of it for home storage. I wanted to setup a SnapRAID volume made up of encrypted hard drives. We will accomplish this using dm-crypt + LUKS. The following is how I did it. This example is going to made … Read more

New Disk Stress Test

I bought a few new disks and wanted a better way to weed out marginal disks before I deployed them. I don’t use UnRAID at home, but I liked the idea of their preclear script. I have modified it to remove a number of unnecessary options, but it works at this point, so I thought … Read more

Installing NUT on Ubuntu

Since updating my Ubuntu 12.04 server to a 3.5.x kernel, I’ve been getting random freezes that lead to the system halting. They were happening at random intervals, so I do into the logs to find the issue. Eventually, I discovered that it was apcupsd causing HID errors.

Encrypted External Drive

I wanted to extend my backup strategy to include rotating a couple encrypted disks offsite for another layer to backup my family videos and pictures. Here are the steps I used to do that on Ubuntu 12.04 Server.

OS X delete all system emails

I recently had a cronjob that was sending me a bunch of useless emails. When I’d open my Mac’s Terminal, I was greeted by a "You have mail.", message (I feel like it’s the days of AOL). I wanted to delete all of these messages in one swoop, and it’s actually REALLY easy to do.

Spin Down Idle Hard Disks

My home server uses mdadm software RAID for my media share. The array is made up of ten disks, so it only seemed natural to spin them down to save power when our family wasn’t home. Powering them off when they aren’t in use should also reduce the case temperature, hopefully increasing the lifetime of the hard disks.

mdadm auto-read-only

If you’ve used mdadm for a while, you may have come across a situation where your array’s status says auto-read-only. If you see this, there’s a very easy way to fix it.