Both of those are doing quite complex tasks for sysadmins (probably it should be guessable what they are doing) that NEED to work. There is no excuse for them t

Both of those are doing quite complex tasks for sysadmins (probably it should be guessable what they are doing) that NEED to work. There is no excuse for them to fail. They need to be rock solid, "Operating-systems/Database/Filesystem/Network/Hardware" can fail, those should not (words like "criminal liability" comes to mind).