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September 23, 2019

17:30 UTC   Start Times Around the World

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Oracle Maximum Availability Architecture and Exadata – a tour de force with Michael Nowak
Michael Nowak joins Cris Pedregal for an informal chat about Maximum Availability Architecture in the context of Exadata.

0:12 Welcome & Michael Nowak introduction

0:14 Section: Exadata MAA overview
0:22 Cost of Downtime and the importance of high availability (HA)
1:18 What is Maximum Availability Architecture (MAA)
3:07 What is MAA: MAA tiers
4:43 Exadata built from the ground up for HA
5:24 10 years of Exadata
5:51 Exadata’s Exachk origin

7:09 Section: Unplanned outages topics
7:13 X7 Do-not-service LED on Exadata storage server
10:27 X7 M.2 Drive Fast Failure Protection
13:00 Database tier I/O cancellation
15:56 Smart OLTP Caching
19:14 Smart Rebalancing for high redundancy diskgroups

22:39 Section: New HA Features and Improvements
22:45 Fast Node Death detection
24:06 What is a Disaster? and Data Guard Standby
26:58 Standby metrics: Redo apply rates, detection and fast-start failover

28:25 Section: Planned maintenance topics
28:28 video demo: database node update using patch manager tool
30:57 video demo: Exadata online storage expansion using OEDACLI tool
34:16 Adding storage: Exadata AWR showing outlier detection and how cells cache data
37:14 Exadata MAA evolution & direction

38:26 Q&A Section
38:29 Q: Single Exadata rack HA? A: Rack full of redundancy, we don't see rack failures
39:46 Q: What are the toughest problems you confront in HA? A: Sick/misbehaving components that don't meet their own service levels (as opposed to fail-stop components) Hard to diagnose, e.g., take disk offline and diagnose via ORION.
42:18 Q: How do you find out that MAA is working well? A: IDC's 5-nines, customer that reports 5 years of operation without issues

Your Experts

    Cris Pedregal

    Cris Pedregal

    Cris Pedregal joined Oracle as a senior developer in 2005, working on the design and development of high availability functionality, compression, and the initial cloud deployments of the Oracle Database. In product management he launched product features and evangelized Oracle technologies. He also managed company-wide technical relationships with key external partners, including a major cloud computing company and CERN. Before Oracle Cris was on the Computer Science faculty at the University of New Mexico, Albuquerque. He speaks one language with 2.5 accents.
    Michael Nowak

    Michael Nowak

    Michael Nowak has worked in the IT industry for 27 years and at Oracle for 21 years where he is currently an Architect in the Development organization focused on Exadata MAA (Maximum Availability Architecture). Not a day goes by when he isn’t thinking about maintaining customer application service levels through all unplanned outages, planned maintenance, and lifecycle operations both on premise and in the Cloud. Hourglasses and error messages are his mortal enemies!