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The Dice Project


The Infrastructure Unit operates the following general services across three sites: Informatics Forum, Appleton Tower, JCMB. Each site is set up so that it can operate as autonomously as possible, while at the same time providing redundant services to the other sites.

Network infrastructure and services

Each site's ether switch configuration has been tailored to the particular circumstances. At the time of writing (March 2014) we have 171 switches in the Forum, 43 switches in Appleton Tower, and 2 switches in JCMB.

Each site has a pair of FibreChannel fabrics. In JCMB these are two independent FC switches. The Forum and Appleton Tower are set up as two independent triangles, each having two switches in the Forum and one in Appleton Tower.

The Forum and Appleton Tower each have four network infrastructure machines, as follows:

At JCMB we have only two machines: one combining the first three roles above, and the second acting as external nameserver and general standby.


Each site has one "console server" machine, acting as a central point for both the site's IPMI and Lantronix-serial consoles. In addition, they act as console server for each other; and in a few cases we have an off-site console server set up for critical machines.


A nagios monitoring service is integrated with our machine configuration system. We have two nagios machines:

The primary is a real machine, and the secondary a VM.


We operate a chat service, as this is also used by the nagios system to send alerts. The service runs on a VM.

Authentication services

We use kerberos for authentication. There is one master KDC, in the Forum, and one slave KDC at each site. The iFriend master KDC is in the Forum, with a slave in Appleton Tower, and an additional slave at KB (this one is non-operational and purely to provide a backup away from the central area)

Although we don't make a lot of use of kx509 at the moment, we still run a kx509 service. There are currently two KCAs, both on VMs.

Most web authentication now uses cosign. We currently have cosign servers in the Forum and Appleton Tower.

Hosts and services requiring a locally-signed X.509 certificate obtain this using the sixkts service. As this is not a high-availability requirement, we currently have one sixkts server on a VM.

Directory services

The OpenLDAP master is currently in the Forum, and there are site slaves in the Forum, Appleton Tower and JCMB. In addition, all DICE machines also currently run a full slave configuration.

Account management (prometheus)

The prometheus system runs on a VM in the Forum. This would not be an easy service to replicate, but as high availability is not a requirement we could move the service to another machine should the main one be unavailable. This could be either the development server or the JCMB OpenLDAP server, as decided at the time.

Infrastructure Unit Kit Lists

Linux servers

(Sorted by date and then hostname.)
Name Type Location Role S/N P/O & date Warranty Replace UPS
(if non-building)
crystal GX745 Forum 5A closet NTP S1, DHCP 428903J ikb0153 2007-06-22 3Y as and when   "Real" serial port required
blackwell R610 AT server room LDAP site-slave 9GD2D4J inf0488 2009-06-30 3Y 2013-14?    
darwin R200 AT server room extDNS, extNTP H660D4J inf0488 2009-06-30 3Y ??   Formerly "ancerl"
fenrir R200 Forum server room KDC, AFSDB J660D4J inf0488 2009-06-30 3Y 2013-14?    
linnaeus R200 Forum server room extDNS, extNTP C560D4J inf0488 2009-06-30 3Y ??   Formerly "hickox"
mckinley R610 Forum server room LDAP site-slave BGD2D4J inf0488 2009-06-30 3Y 2013-14?    
hati R210 JCMB server room KDC, AFSDB GJ6TJ4J inf0622 2009-11-02 3Y 2013-14?    
skoll R210 AT server room KDC, AFSDB FJ6TJ4J inf0622 2009-11-02 3Y 2013-14?    
otaka DL180 AT server room AT netInf, DHCP CZ30291JCP inf0953 2010-07-09 4Y 2014-15? 1kVA AS0614310419  
reeves DL180 Forum server room LDAP master CZ30301P1K inf0953 2010-07-09 4Y 2014-15?    
abbado DL180 Forum server room Forum netInf, DHCP CZ3115CJ62 inf1175 2011-03-31 5Y 2015-16? 3kVA JS0511022795
3kVA XL QS0348111013
cockerel DL180 Forum server room Nagios master CZ3121H23L uoe26808 2011-05-18 5Y 2015-16?    
hall DL180 JCMB server room LDAP site-slave/prometheus DR CZ3121H23F uoe26808 2011-05-18 5Y 2015-16?    
tycho DL180 Forum server room loghost CZ3121H23H uoe26808 2011-05-18 5Y 2015-16? 750VA AS0444223639  
slatkin R310 JCMB server room KB netServ, consoles, ifriend KDC slave (unused) 4WL3C5J inf1642 2012-05-10 5Y 2017-18? 3kVA JS0510018437  
elder R320 JCMB server room KB extRt, netInf, DHCP BB3YC5J inf1748 2012-06-18 5Y 2016-17? 3kVA JS0511022966  
norrington R320 AT server room AT extRt CB3YC5J inf1748 2012-06-18 5Y 2017-18? 1400VA XL QS0322110541
1400VA XL QS0322210008
bevan R320 Forum server room KDC master B15CD5J inf1771 2012-06-22 5Y 2017-18?    
blatiere R320 Forum server room Forum consoles master, DHCP J9MM9X1 inf2541 2013-03-28 5Y 2018-19?    
hanlon R210 Forum server room cosign, iFriend KDC master 6LQM9X1 inf2539 2013-03-28 5Y 2018-19?    
mcintyre R210 AT server room cosign, iFriend KDC slave 31JFWX1 inf2539 2013-03-28 5Y 2018-19?    
rattle R320 Forum server room Forum netServ, site DNS, OpenVPN G1KL9X1 inf2540 2013-03-28 5Y 2018-19? 3kVA XL QS0348111013
3kVA JS0511022795
gatti R320 AT server room AT netServ, site DNS, OpenVPN BKZKT02 inf3726 2014-03-18 5Y 2019-20? 1400VA XL QS0322110541
1400VA XL QS0322210008
grepon R320 AT server room AT consoles 4KZKT02 inf3726 2014-03-18 5Y 2019-20?    
knussen R320 Forum server room Forum extRt 9CKKT02 inf3719 2014-03-18 5Y 2019-20? ??  
babbler VM IF jabber            
buchanan VM IF kca, misc            
capon VM AT Nagios secondary            
dammers VM KB sixkts, kca            
huxley VM IF Test nameserver/timeserver            
peigne VM IF Forum self-managed consoles            
vandellas VM IF Prometheus master            
wallace VM KB extDNS            

Machines in the Forum and AT server rooms are covered by the inbuilt UPSes, and are shown with a blank in the column unless they have some additional provision. Machines in the JCMB server room may be powered by one of the "rack" UPSes, and in this case are shown with a blank in the column unless they have some additional provision.

FibreChannel Switches

(Sorted by date and then hostname. All warranties have now expired.)
Name Type Location Role S/N P/O & date Comments
fc00 SANbox 5600 IF-B.02 0835C00819 ikb0626 2008-09-05  
fc01 SANbox 5600 IF-B.02 0834C00021 ikb0626 2008-09-05  
fc0a SANbox 5600 AT server room 0834C00108 ikb0626 2008-09-05  
fc10 SANbox 5600 IF-B.02 0834C00018 ikb0626 2008-09-05  
fc11 SANbox 5600 IF-B.02 0834C00113 ikb0626 2008-09-05  
fc1a SANbox 5600 AT server room 0834C00026 ikb0626 2008-09-05  
fchs SANbox 5600 IF-B.02 hot spare 0835C01123? ikb0626 2008-09-05  
fc0 SANbox 5800 JCMB   1005F00659 inf0778 2010-03-09  
fc1 SANbox 5800 JCMB   1005F00525 inf0778 2010-03-09  


(Sorted by location and role, more or less...)
Name Type Role Location S/N P/O & date Rating Battery Comments
  SMART-UPS 1400 RM XL AT server room comms cabinet QS0322110541 a602939 2003-06-06 1400VA 2011-06  
  SMART-UPS 1400 RM XL AT server room comms cabinet QS0322210008 a602939 2003-06-06 1400VA 2011-06  
  Smart-UPS 1000 RM AT server room rack 2 AS0614310419 a637388 2006-06-27? 1kVA    
  Smart-UPS 3000 RM AT3 comms cabinet JS0510018446 a631778 2005-07-11 3kVA 2011-07  
  Smart-UPS 3000 RM AT4 comms cabinet JS0617023554 a637388 2006-06-27 3kVA 2011-11  
  Smart-UPS 3000 RM AT5 comms cabinet JS0510018447 a631778 2005-07-11 3kVA 2013-02 Battery moved from AT8 (RT#63576)
  Smart-UPS 3000 RM AT6 comms cabinet JS0511022967 a631778 2005-07-11 3kVA 2012-01  
  Smart-UPS 3000 RM AT7 comms cabinet JS0714011678 ikb0141 2007-06-19 3kVA    
  Smart-UPS 3000 RM AT8 comms cabinet JS0714011688 ikb0141 2007-06-19 3kVA 2013-09  
  SMART-UPS 3000 RM XL Forum core0 ("core") comms racks QS0348111013 a614789 2004-02-04 3kVA 2013-01  
  Smart-UPS 3000 RM Forum core1 ("netInf") comms racks JS0511022795 a631778 2005-07-11 3kVA 2012-05  
  Smart-UPS 3000 RM Forum core2 ("netServ") comms racks JS0617023553 a637388 2006-06-27 3kVA 2011-07?  
  Smart-UPS 750 RM Forum loghost comms racks AS0444223639 a627391 2004-12-02 750VA    
  Smart-UPS 1500 Test & development IF-1.09 YS0315121217 a609907 2003-08-14 1500VA 2013-03  
  Smart-UPS 3000 RM JCMB server room Rack 0 JS0511022966 a631778 2005-07-11 3kVA    
  Smart-UPS 3000 RM JCMB server room Rack 1 JS0510018437 a631778 2005-07-11 3kVA    
  SMART-UPS 5000 RM DL4 JCMB server room Rack 2 CS0543110262 ?? 5kVA    

IUkit.html,v 1.295 2014/07/08 13:40:24 gdmr Exp

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