The Ufi learndirect service

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The Ufi learndirect service

• Dick Moore
• Technology Director
• 30 September 2008

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Learners registered on the learndirect system?

• 25,000
• 200,000
• ½ a million
• 2 million
• 10 million

?
3
Attachments uploaded to the learndirect system ?

• 1
• 100,000
• 1 million
• 2 million
• 20 million

?
4
Highest number of malicious attacks aimed at
learndirect in one day ?

• 1
• 10
• 50
• 100
• 1000
• gt 1000

?
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Malicious attacks on learndirect
Sustained attack from robots in Latvia, Sweden,
Romania, Hungary, Denmark and Lithuania.
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Scale

• Up to 170 Million learndirect database reads
  writes per day
• Learndirect courses comprise 2.2 million digital
  objects
• Learndirect associated services are delivered
  by over 900 computers
• The learndirect core database server is
  officially rated a Supercomputer
• Peak at 3000 concurrent learners
• 1 million Life in the UK tests so far
• The learndirect disaster recovery site is housed
  in a steel vault underneath 25 feet of concrete
• The learndirect systems are checked every hour
  through the night by Bluestar in India

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Change Control

• Change Raised
• Approved by three independent experts
• Authorised/Rejected by the Change Approval Board
  (CAB)?
• Subsequently scheduled and implemented
• Post implementation review

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Number of system releases in 2007?

• 5
• 10
• 30
• 100
• 150
• 300

?
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Number of learndirect test environments ?

• 3
• 5
• 10
• 15

?
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Change Statistics

• 1114 changes 06/07
• 1109 successful
• 1052 changes 07/08 10 months
• 1050 successful

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Service Statistics

• 06/07 99.98 Availability
• 07/08 99.87 Availability

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How many CDs to copy the learndirect database?

• 10
• 50
• 100
• 200
• 500
• 1000

?
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Backups

• 35 TB on 700 tapes
• Stored 30 miles from site
• Equivalent to 10,000 iPod nanos
• Approx 2500 files travel between production DR
  sites every day

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Jobs Rolesin the technology directorate

• Services not solutions
• Governance built in
• Clear Team responsibilities

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Monitoring

• What is a service?
• If you dont monitor it
• then you are just running software
• Monitoring systems
• Nagios
• Cacti

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Its a service not a system

• Privacy
• Security
• Availability
• Monitoring
• Resilience (remove SPOFs)?