Data centre networking at the University of Bristol - Networkshop44
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Data Centre at The University of Bristol Oliver Elliott
Transcript of Data centre networking at the University of Bristol - Networkshop44
Data Centre at The University of Bristol
Oliver Elliott
Data Centre at University of Bristol
»How we modernized our existing Data Centre»Plans for a new second Data Centre»How to make them work together»The future!
Introduction
22/03/2016
Data Centre at The University of Bristol
Data Centre at University of Bristol
»Cisco Cat6500 DC Routers
»Brocade FCX TOR Switches
»Brocade SX HPC Routers
»Brocade FC fabrics
The Past
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Data Centre at The University of Bristol
Configuring the legacy DC switches
Data Centre at University of Bristol
»Problems:› No campus to DC FW› Difficult and expensive
10GbE–Copper or SFP+ or
both?› EOL load balancers› Cross rack stacks
increasing failure domain
› Spanning Tree convergence and interop
Is this hacking?
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Data Centre at The University of Bristol
Data Centre at University of Bristol
»The Current – How did we get here?› FC SAN -> iSCSI› 6500/Brocade SX -> Cisco Nexus–Copper FEX and 5k for SFP+
› Cisco ACE -> F5› Fabricpath› Separate VRF for out of band management network
("Pink" networks)
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Data Centre at The University of Bristol
Data Centre at University of Bristol
»Topology design of our current DC
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Data Centre at The University of Bristol
Data Centre at University of Bristol
»Load balancing
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Data Centre at The University of Bristol
Data Centre at University of Bristol
»Bugs!»Physical faults during
migration – MyFiles»Discovering just how many
hosts didn't have any usable switch failover
What went wrong?
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Data Centre at The University of Bristol
Data Centre at University of Bristol
»Cultural change in the DC› From just a room with servers in to a proper
managed DC»M&E upgrade in progress
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Data Centre at The University of Bristol
Data Centre at University of Bristol
DC Requirements
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Data Centre at The University of Bristol
»We need a 2nd Data Centre
Data Centre at University of Bristol
»Geographically diverse»L2 between sites? No? (Not yet?)»Sub 2ms between sites to allow for synchronous
storage?› Async vs Sync storage
»Architecting services for multiple DC is different
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Data Centre at The University of Bristol
Data Centre at University of Bristol
»Linking the Data Centres together
Data Centre at University of Bristol
»JANET Diverse L2 VPN
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Data Centre at The University of Bristol
Data Centre at University of Bristol
»Nexus 9k and SDN› APIC› Integration of F5 and Hyper-V into the network
The Future
22/03/2016
Data Centre at The University of Bristol
Data Centre at University of Bristol
»Questions?
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Data Centre at The University of Bristol
