Do you have a backup?

If I take away your device right now, and replace it with a brand new one. Would you lose any data?

This is a question I've asked many friends, colleagues and family members whose main interest isn't technology. It's a question I ask when people ask me advise about how to use their Mac or iPhone. And the response is almost always the same: But all my photos are on my iPhone. Or: But all my files are on that Mac

I could have asked: do you have a backup? But that's a technical question. People often explain that they have a big drive at home with all media that doesn't fit on their tiny laptop drive. Which is storage, not a backup.

Rephrasing a technical question and removing all jargon makes it an easier question to answer. And it often shows those people that they have a critical flaw in their system.

The next question they always ask is: so, how do I backup?

One question, and future drama prevented.

Kerio and Yosemite Upgrades

The Yosemite installer estimated times will be inaccurate. Part of the upgrade involves moving /usr/local out of the way. The process of moving those files back after the upgrade is done one file at a time and seems very slow. - Jim Lindley

I can understand why an installer moves stuff around, but this seems dangerous. Especially considering for example the following:

By default, Kerio Connect is installed to /usr/local/kerio/mailserver. Now you can change the location. - Kerio

I manage a Kerio mailserver and luckily our user's data doesn't live in that default location anymore. Imagine updating such a server and waiting for the server to migrate 500GB of emails at 10-20kb per file from one place to the other at a ratio of one file per movement.
The upgrade would take days.

So my advice: get a new Mac mini, install OS X Yosemite from scratch, install Kerio Connect and import your existing data. You'll safe a lot of time, and your Kerio database gets optimized at the same time.