1 === One is glad to be of service ===
3 I've been taking care of boxes since my first job as an
4 EmployedWorker and in the '90s I've been providing free
5 telecommunication service to a total of 450 registered
6 users with my own BullettinBoardSystem called SystemShockBbs.
8 I've been using a wide variety of different OSes, see
9 SystemArchitectRole for a list.
11 === Production systems ===
13 I've designed and helped implementing the following
14 production systems, all of which are still in service:
16 * **SugarLabs**'s Internet infrastructure -- I'm coordinator
17 of the [[http://sugarlabs.org/go/InfrastructureTeam | Infrastructure Team]],
18 taking care of 8 machines hosted at variois locations and running
19 development and support services for a large community.
21 * '''DevelerCompany's IT infrastructure''' - Leveraging
22 my earlier work for SiriusCompany, for over 6 years I've
23 been continuously growing and restructuring the network,
24 the servers and their intricate mesh of services and
25 support scripts. The main server, called {{trinity}},
26 contains 1TB of storage and offers file storage, user
27 authentication, e-mail, and many web-based services to a
28 highly heterogeneous and complex environment comprising
29 several versions of Linux, MacOsX and Windows clients.
30 Another server, called {{asterisk}}, acts as a VoIP PBX
31 and secondary slave for many (but not all) of {{trinity}}'s
34 * '''http://www.fieremostre.it/''' - A cluster of 4 RedHat
35 servers, two web frontends and Java appservers and two
36 database and filesystem backends with hw SCSI RAID5.
37 Fully managed remotely, including power fencing and
38 robotized tape juggler.
40 * I've configured and installed a cluster of 5 nodes on
41 blade CPU boards with shared fiber-channel RAID storage.
42 I used a pre-release of RedHat's Advanced Server product
43 to implement a shared storage pool of 1.5TB with GFS1.
44 The system initially went to production without the GFS
45 pool because of reliability concerns with this new
48 * '''Genexpress Lab''' - A combo of two servers, each
49 acting as a gateway and file server for a security ring.
50 This design was done for the Department of Bioengineering
51 of the University of Firenze, in Prato's Scientific Center.
53 My philosophy is using mainstream hardware whenever possible
54 and concentrate most services on few phisical systems.
55 The savings in cost can be used to increase availability and
56 performance through redundancy. This strategy leads to
57 datacenters that are easy to understand and maintain, while
58 at the same time scaling up much better than
59 traditional asymmetrical solutions (like web server,
60 mail server, db server...).
62 Being fond of UNIX culture, I tend to keep my systems as
63 open as possible and at the same time very secure.
65 TODO: add a list of server software I use/know