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CisCon 2018 - Analytics per Storage Area Networks

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Relatore: Fausto Vaninetti, Consulting Systems Engineer in Cisco Systems, Inc.

L’avvento dello storage all flash, nuove regolamentazioni quali GDPR e la continua pressione verso un datacenter sempre disponibile hanno reso gli analytics per ottimizzare la gestione IT un elemento imprescindibile per molte aziende. I nuovi switch Fibre Channel 32G della serie Cisco MDS 9000, abbinati alle piu’ recenti versioni del Sistema Operativo NX OS, forniscono delle funzionalita’ integrate di analytics e telemetria che possono essere esposte tramite interfaccia a comandi, interfaccia grafica Datacenter Network Manager o strumenti di terze parti. Questo intervento si propone di far luce su questa nuova funzionalita’ unica nel suo genere, esplorandone brevemente i casi d’uso e le modalita’ di implementazione.

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CisCon 2018 - Analytics per Storage Area Networks

  1. 1. Fausto Vaninetti DC Consultant EMEAR Nov 2018 With Cisco MDS 9000 Series Analytics for SAN
  2. 2. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Publicfvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • 32G today, 64G in the works • Advanced Diagnostics and 6 9s’ availability • Hardware-level Slow Drain mitigation • Programmability (Python, Ansible, NX-API…) • FC NVMe • SAN Analytics and Telemetry Streaming What is making Fibre Channel Hot Again? QoQ market revenue growth in the last 4 quarters
  3. 3. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Is Faster Always Better? Limited visibility Increased risk
  4. 4. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Tackling GDPR Compliance Avoid unwanted data access. Integrated data security and analytics. Meet governance, risk, and compliance requirements. • Secure purge and “right to be forgotten” • Data-at-rest encryption, FIPS 140-2 certification • Onboard and external key management • TLS 1.2 • Robust security posture with comprehensive logging and auditing • Role-based Access Control (RBAC) • Multitenancy and adaptive QoS for traffic isolation and performance assurance • SAN Analytics (headers only) • Hardware-based data-in-motion encryption (FC and FCIP), FIPS 140-2 certification • Device-level key management • TLS 1.2, SHA-2 password encryption • Robust security posture with comprehensive logging and auditing • Role-based Access Control (RBAC) • Hard zoning, VSAN multitenancy
  5. 5. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public SAN Analytics: Why Managing the scale, complexity, volume and pace of change in modern data centers is intimidating… How can a storage network administrator keep flying blind? Application and infrastructure performance assurance, fast troubleshooting, governance and control can not be done with silo-centric tools, spotty data feeds, guesswork and home-spun analysis Time Has Come For A True Enterprise-class SAN Analytics Solution
  6. 6. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Analytics - What’s the Customer Problem? Need end-to-end visibility to locate issues and troubleshoot effectively Putting an appliance or hardware probe is expensive, intrusive and not scalable Hard to predict where the issue will be, so need something which is integrated and pervasive (proactive traffic monitoring and analysis) Not an App/Host issue Not an SAN issue Not a storage issue Where is the problem then? Hard to Fix What You Can’t See, End to End Visibility Wanted
  7. 7. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Cisco MDS 9000 Family Unmatched Capabilities MDS 9000 32G Family
  8. 8. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public A Whole New Perspective Cisco SAN Analytics Solutions Offers Storage Administrators An End to End View Of All SCSI IO Transactions In A Vendor Neutral Way
  9. 9. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Publicfvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • By 2020, 100 percent of network devices are expected to have in-built probes for telemetry - Integrated - Scalable - Open standard formats Tipping Point Geological era The Cambrian explosion Species
  10. 10. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • Per Port Metrics • Per Flow Metrics Before and Now LUN1 LUN2 LUN3 Initiator Target SAN Analytics Switch TX RX FC Interface FC Frames Switch or linecard • Frames received/transmitted • Sync loss /signal loss / link failure events • Errored frames received (bad CRC) • TxWait count • FC errors/discards/drops • Exchange Completion Time • Data Access Latency • Outstanding IOs, IO Size • IOPS, read/write ratio • Throughput
  11. 11. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Appearances Can Be Deceiving
  12. 12. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public An Industry First Cisco is first to market with an enterprise-class SAN Analytics Solution able to provide end-to-end deep visibility into your Fibre Channel fabric, paving the way to application performance assurance.
  13. 13. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public SAN Analytics Deployment Models FC port with SAN Analytics
  14. 14. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Metric Visualization Flexibility On-switch CLI • Capability to query switch remotely • Response in JSON format • Response output depends on the SQL-like input query under the request • Same as the existing NX-API model • Works best to track specific metrics • Extremely flexible Off-switch Pull model • A.k.a subscriber model • Remote app subscribes to MDS for the interested metrics • MDS streams out the data regularly to the destination • Data encoding in industry leading format for best performance • Optimized performance for continuous data (instead of Pull mode). High CPU load due to SNMP walk is now history. Off-switch Push model • SQL-like CLIs to pull raw data from 32G FC module • Output in key-value format (similar to dictionaries or JSON) • Unmatched flexibility for advanced user • Basic trending & correlation • Optional standard CLIs • Output in nice-to-read tabular format, just like any other NX- OS show command output Cisco DCNM Third Party ITOA
  15. 15. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Cisco SAN Analytics Solution: Use Cases • Storage performance insight • Faster troubleshooting • Infrastructure optimization • Application deployment recommendation • Storage provisioning recommendation • Change management • Auditability • Health report Integrated Simple Affordable Scalable Always on Open and programmable
  16. 16. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • Use Custom Graphing to search by LUN ID, Host or Storage port • Compare DAL and ECT • DAL high, storage device causing slowness; ECT high, SAN causing slowness • Based on this graph on the storage port, is this a slow SAN or a slow storage device? Slow SAN or Slow Storage Device? For more information please check https://www.youtube.com/watch?v=mlWq7Oko0mI&t
  17. 17. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • Use Custom Graphing • Input WWPN or host name of host • Select Read or Write IO Size in Metrics • See block size over time, validate host configuration What Is The Current IO Size For Host? For more information please check https://www.youtube.com/watch?v=mlWq7Oko0mI&t
  18. 18. fvaninet © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public How Much ISL Bandwidth Used By Tape? Per VSAN Traffic Monitoring enabled by SAN Analytics VSAN Header added by the MDS switch indicating membership Only allowed VSANs will traverse the link TE TE FF Enhanced ISL (EISL) Trunk Carries Tagged Traffic from Multiple VSANs VSAN Header removed at egress point No special support required by end nodes

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