25 January 2018

Using Logical Volumes as disk images for virtualization

      In most scenarios, using raw devices can increase the performance. Of course, the application should know how to deal with that. Why? Because you take away the overhead that the file system can cause (again, if the application know how to deal with that).
     I see in my entire life databases having more performance because are using raw devices (disregard what the dumb people says in tongues without any proof).

What I've tested

Linux and FreeBSD Virtual machines have a significant increase of I/O performance.

What I didn't tested

Windows VMs (well windows do a shitload of I/O, probably it's a good idea if you're into this crap)
BSD VMs (not yet)
Resizing (I don't know if it's possible, I'll test later and update this post)

05 January 2018

Privacy repository

I've created a repo on github to pull together all the privacy stuff and how to fix it (disregard the operating system). 
So don't do anything stupid, read the scripts before executing, specially because we're talking about windows and one of them are about flashing your bios (IntelME). I'm not responsible if your house goes in orbit because you did something wrong without read first.