Openfiler is one of two active, open source NAS/SAN solutions that we have listed on this site. The other one is FreeNAS, a BSD-based distribution. A feature comparison of these two projects is available here
One fact that was pointed out in that is that while both distributions are free and open source, the Administrator Guide for Openfiler 2.3, the latest stable version of Openfiler, is not free. The Administrator Guide for Openfiler 2.3 is available for purchase from Xinit Systems, the UK-based company behind Openfiler, for 29 – 59 EUR, or about 37 – 75 USD.
What you pay depends on whether you want a PDF-only guide – 29 EUR or 37 USD; a black and white printed copy – 39 EUR or 50 USD; a printed colored copy – 59 EUR or 75 USD.
For a business, of course, those prices mean nothing. However, if you are the average Joe-user, and can’t afford to shell out any money to buy the latest guide, you will find the admin guide for older version of Openfiler here. The interface is slightly different, but for the most part, the concepts are the same.
To help our not-too-advanced readers, we will be posting tutorials and tips on Openfiler 2.3 administration on this site. So check back often.