vin sec: linux

Showing posts with label linux. Show all posts

Saturday, June 2, 2012

ZFS and DTrace on Ubuntu Linux

I know what I'll be doing this weekend...

"So, I had heard about ZFS and DTrace running on Linux. People have been working on them for years. Basically, since the time the technologies came out on Solaris. So, I decided to follow up on these ports and see what could be done. Luckily, I had great success in getting both to run on an Ubuntu server of mine. If you would like to do so as well, just follow the steps below."

http://liberumvir.com/2012/06/01/zfs-and-dtrace-running-on-ubuntu.html

Saturday, May 5, 2012

Hybrid HDD + SSD RAID1

Not really security-related at all, but this is just damn cool. After killing three SSDs in 18 months (thankfully the drives were under warranty, but my data wasn't), I went looking for a better solution. When SSDs crap out, they go suddenly and catastrophically. There's no putting them in the freezer or swapping controller boards with another unit like you can with a mechanical hard drive. Once the sector mapping tables - which are constantly being updated due to wear-leveling algorithms - get corrupted, you're pretty much not getting your data back. Turns out there's a simple way to combine the speed benefits of an SSD with the reliability of an HDD-backed RAID1 mirror.

dedicated to the loving memory of my grandfather, jerome templeton smith, hard at work bringing southern bell long-distance telephone service to the state of tennesee. in late 1979, he fell terminally ill with brain cancer, and the doctors did not expect him to live longer than six weeks. around the same time, my mother learned that she was pregnant with me. against all odds, this man found the will to live more than six more months, wanting nothing more than to hold his baby grandson. sadly, he passed away shortly after i was born, so i never had the pleasure of knowing him. my mother tells me that he would be proud.