+=== One is glad to be of service ===
+
+I've been taking care of big iron since my first job as
+an EmployedWorker and in the '90s I've been providing free,
+but commercial quality, telecommunication service to a total
+of 450 registered users with my own BullettinBoardSystem
+called SystemShockBbs.
+
+I've been using many different OSes, see SystemArchitectRole
+for a list.
+
+=== Production systems ===
+
+I've designed and helped implementing the following
+production systems, all of which are still in service:
+
+ * '''DevelerCompany's IT infrastructure''' - Leveraging
+ my earlier work for SiriusCompany, for over 6 years I've
+ been continuously growing and restructuring the network,
+ the servers and their intricate mesh of services and
+ support scripts. The main server, called {{trinity}},
+ contains 1TB of storage and offers file storage, user
+ authentication, e-mail, and many web-based services to a
+ highly heterogeneous and complex environment comprising
+ several versions of Linux, MacOsX and Windows clients.
+ Another server, called {{asterisk}}, acts as a VoIP PBX
+ and secondary slave for many (but not all) of {{trinity}}'s
+ services.
+
+ * '''http://www.fieremostre.it/''' - A cluster of 4 RedHat
+ servers, two web frontends and Java appservers and two
+ database and filesystem backends with hw SCSI RAID5.
+ Fully managed remotely, including power fencing and
+ robotized tape juggler.
+
+ * I've configured and installed a cluster of 5 nodes on
+ blade CPU boards with shared fiber-channel RAID storage.
+ I used a pre-release of RedHat's Advanced Server product
+ to implement a shared storage pool of 1.5TB with GFS1.
+ The system initially went to production without the GFS
+ pool because of reliability concerns with this new
+ technlogy.
+
+ * '''Genexpress Lab''' - A combo of two servers, each
+ acting as a gateway and file server for a security ring.
+ This design was done for the Department of Bioengineering
+ of the University of Firenze, in Prato's Scientific Center.
+
+My philosophy is using mainstream hardware whenever possible
+and concentrate most services on few phisical systems.
+The savings in cost can be used to increase availability and
+performance through redundancy. This strategy leads to
+datacenters that are easy to understand and maintain, while
+at the same time scaling up much better than
+traditional asymmetrical solutions (like web server,
+mail server, db server...).
+
+Being fond of UNIX culture, I tend to keep my systems as
+open as possible and at the same time very secure.
+
+TODO: add a list of server software I use/know
+