OpenStack Central and Eastern European presentation on the CERN status.

2. Tim Bell
tim.bell@cern.ch
29/05/2013 CERN OpenStack CEE Day 2

3. 29/05/2013 CERN OpenStack CEE Day 3
CERN was founded 1954: 12 European States
“Science for Peace”
Today: 20 Member States
Member States: Austria, Belgium, Bulgaria, the Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Italy, the
Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland
and
the United Kingdom
Candidate for Accession: Romania
Associate Members in Pre-Stage to Membership: Israel, Serbia
Applicant States for Membership or Associate Membership:
Brazil, Cyprus (awaiting ratification), Pakistan, Russia, Slovenia, Turkey, Ukraine
Observers to Council: India, Japan, Russia, Turkey, United States of America;
European Commission and UNESCO
~ 2,300 staff
~ 1,000 other paid personnel
> 11,000 users
Budget (2013) ~1,000 MCHF

4. What are the Origins of Mass ?
29/05/2013 CERN OpenStack CEE Day 4

5. Matter/Anti Matter Symmetric?
29/05/2013 CERN OpenStack CEE Day 5

6. Where is 95% of the Universe?
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7. 29/05/2013 CERN OpenStack CEE Day 7

8. 29/05/2013 CERN OpenStack CEE Day 8

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10. Collisions
29/05/2013 CERN OpenStack CEE Day 10

11. 29/05/2013 CERN OpenStack CEE Day 11
July 4, 2012

12. 29/05/2013 CERN OpenStack CEE Day 12

13. OpenStack London December
2012
Tim Bell, CERN 13
Tier-1 (11 centres):
•Permanent storage
•Re-processing
•Analysis
Tier-0 (CERN):
•Data recording
•Initial data reconstruction
•Data distribution
Tier-2 (~200 centres):
• Simulation
• End-user analysis
• Data is recorded at CERN and Tier-1s and analysed in the Worldwide LHC
Computing Grid
• In a normal day, the grid provides 100,000 CPU days executing over 2 million jobs

14. The CERN Meyrin Data Centre
29/05/2013 CERN OpenStack CEE Day 14

15. 29/05/2013 CERN OpenStack CEE Day 15

16. A Big Data Challenge
29/05/2013 CERN OpenStack CEE Day 16
• Nearly 100PB storage today
• LHC produces up to
35PB/year today
• Peaks of 25GB/second
• Data rates double in 2015
• Experiments will run for 20
years and data needs to be
preserved
• Exabytes of storage to
maintain….

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18. New Data Centre Approved
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• Data centre in Geneva at
the limit of electrical and
cooling capacity at 3.5MW
• New centre chosen in
Budapest, Hungary
• Additional 2.7MW of
usable power
• Local on-site support for
hardware maintenance
and installations

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20. 29/05/2013 CERN OpenStack CEE Day 20

21. Good News, Bad News
• Additional data centre in Budapest now online
• Increasing users of CERN’s facilities and higher
computing requirements as data rates increase
• Staff numbers are fixed, no more people
• Materials budget decreasing, no more money
• Legacy tools are high maintenance and brittle
How do we maximise our computing resources within
these constraints ?
29/05/2013 CERN OpenStack CEE Day 21

22. Approach
29/05/2013 CERN OpenStack CEE Day 22
• Remodel IT services on Cloud layered models
• IaaS, PaaS, SaaS
• Move to commonly used open source tools
• Focus on strong communities and momentum
• Implement clouds at scale
• Aim for 90% infrastructure virtualised
• Exploit ecosystem solutions rather than writing from
scratch

23. 29/05/2013
Bamboo
Koji, Mock
AIMS/PXE
Foreman
Yum repo
Pulp
Puppet-DB
mcollective, yum
JIRA
Lemon /
Hadoop /
LogStash /
Kibana
git
OpenStack
Nova
Hardware
database
Puppet
Active Directory /
LDAP

24. Training for Newcomers
29/05/2013 CERN OpenStack CEE Day 24
Buy the book rather than guru mentoring

25. Job Opportunities
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26. Service Models
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• Pets are given names like pussinboots.cern.ch
• They are unique, lovingly hand raised and cared for
• When they get ill, you nurse them back to health
• Cattle are given numbers like vm0042.cern.ch
• They are almost identical to other cattle
• When they get ill, you get another one

27. CERN Status
• IT OpenStack Cloud
• Running Folsom around 500 hypervisors on KVM and Hyper-V
• High availability components using load balancing
• All Puppet managed to configure OpenStack
• Over 100 users creating up to 300 new VMs/day
• Cattle service level only
• LHC experiment farms
• CMS currently running 1,300 hypervisors with 50,000 cores
• ATLAS starting to ramp up to a similar size
• Other science grid sites moving to private cloud on OpenStack
• Brookhaven, IN2P3, FutureGrid, NeCTAR, IHEP, …
29/05/2013 CERN OpenStack CEE Day 27

28. 29/05/2013 CERN OpenStack CEE Day 28
Microsoft Active
Directory
CERN DB
on Demand
CERN Network
Database
Account mgmt
system
Horizon
Keystone
Network
Compute
Glance
Scheduler
Cinder
Nova
Block Storage
Provider

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http://www.eucalyptus.com/blog/2013/04/02/cy13-q1-community-analysis-%E2%80%94-openstack-vs-opennebula-vs-eucalyptus-vs-
cloudstack

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31. Preproduction Service
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32. Outlook
• Track stable Grizzly releases in RedHat EPEL
• Up to date but not too close to the leading edge
• Scaling
• Expect 15,000 hypervisors, 150,000 VMs by 2015
• Manageability
• Metering, Orchestration with Heat, Bare Metal
• Functionality
• Load Balancing, High Availability Storage and Pets
29/05/2013 CERN OpenStack CEE Day 32

33. High Energy Physics Clouds
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Long-term preservation
of software and data of
HEP experiments
Utilize special
computing resources
attached to the
detectors
Simplify the management
of heterogeneous in-
house resources
Use commercial
clouds for exceptional
computing demands
Distributed cloud
computing using HEP
and non-HEP clouds

34. What have we learnt?
• Automate everything from the beginning
• Stackforge community projects are a great help
• Distributions and appliances make getting started much easier
• Constant rate of change requires a different approach
• Focus on core technologies and keep up to date
• Track new projects but don’t adopt too early unless strategic
• Many of our users are cloud aware
• Culture changes for legacy application coding and IT services
• Communities are major motivators
• Staff approach needs to change to adapt rather than re-invent
29/05/2013 CERN OpenStack CEE Day 34

35. Conclusions
• CERN IT is re-engineering to deliver
additional capacity to 11,000 physicists
within fixed resources
• Clouds models can simplify current large
scale computing infrastructure
• OpenStack and its ecosystem allows us to
meet this challenge and help others through
open source
29/05/2013 CERN OpenStack CEE Day 35

36. Questions ?
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37. Linux Security Incident
29/05/2013 CERN OpenStack CEE Day 37
New operational procedures being developed with cloud flexibility