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Tier-1 Evolution and Futures. GridPP 29, Oxford Ian Collier September 27 th 2012. Where are we going?. Where are we going?. Good question. Where are we going?. Good question We know things are changing. Where are we going?. Good question We know things are changing

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Tier 1 evolution and futures

Tier-1 Evolution and Futures

GridPP 29, Oxford

Ian Collier

September 27th 2012


Where are we going
Where are we going?


Where are we going1
Where are we going?

  • Good question


Where are we going2
Where are we going?

  • Good question

  • We know things are changing


Where are we going3
Where are we going?

  • Good question

  • We know things are changing

  • We don’t know how things will turn out


Where are we going4
Where are we going?

  • Good question

  • We know things are changing

  • We don’t know how things will turn out

  • We can make choices


Where are we going5
Where are we going?

  • Good question

  • We know things are changing

  • We don’t know how things will turn out

  • We can make choices

  • We must be ready to try things and to adapt


Where we are
Where we are

  • Services running.

    • Lots of cores

    • Lost of disk

    • Lots of tape

  • Castor running well & stably

    • Shaun will talk about storage future

  • EMI/UMD Middleware rolling out

    • Continues to be a moving target

  • Virtualisation

    • Usage growing fast

  • Configuration management

    • Batch & disk farms much more tractable

    • Deploying new instances of services easier


2012

  • Virtualisation

    • Heading to most services running on resilient virtualisation platform with shared storage

      • Unless there is a definite contra-indication (performance)

    • Currently MS Hyper-V

      • It works. But it is Windows (unfamiliar territory still)

      • Likely to migrate to open source solution (ovirt/RHEV)

  • Cloud

    • Stratuslabprototype

  • Continuing EMI/UMD rollout

    • Focus on EMI-2

  • CVMFS Stratum 0 for non-LHC VOs

    • Ready for testing by VOs


Virtualised hosts
Virtualised hosts

Fabric - Tier1 Review, June 2012


2012

  • Combination of Hyper-V and SCD cloud

    • Deploying new services easier

    • Testing things much much easier

  • Combined with Quattor (fabric & configuration management) it is pretty easy to roll out, for example, a test cluster


Getting nebulous
Getting nebulous

  • Tier 1 developing SCD Cloud platform

    • Using StratusLab – integrating cloud & grid

    • Very much a prototype so far

    • Several dozen VMs there as well

      • Very good for ‘just trying things’

  • Several use cases:

    • Internal (Tier1 & SCT) development & testbeds

      • At present trust users as regular sysadmins

    • Scientific computing resource for other departments in STFC

    • Virtualised layer in batch farm

    • Experiments are investigating clouds

      • We need to be building up experience

    • EGI Federated cloud


Looking to future
Looking to Future

  • Integrating Aquilon

    • ‘next generation’ configuration database for Quattor

    • SQL database plus git workflow

    • Faster more flexible development & deployment

    • Better relational integrity for the ‘database like’ parts

  • STFC deploying new DNS management

    • We will have direct access to manage our networks including API

    • More dynamic provisioning possible

  • Entirely more ‘dynamic’ infrastructure?

    • See cloud work…


Looking to future1
Looking to Future

  • There are emerging themes

  • Virtualisationmaking hardware provisioning easier

    • Can abstract hardware delivery/maintenance from service provision

    • As site admins we like this

  • Cloud frameworks should allow

    • containerisation

      • Users may like this

      • Within some higher level requirements set by sites users can have much more choice/control of their software environments

    • More elastic & dynamic access to resources

  • Cloud interfaces may make access to resources easierfor users


Where are we going6
Where are we going?

  • We know things are changing

  • We don’t know how it will turn out

  • We can make choices

  • Have to be ready to try things and to adapt


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