On Scalable Storage Area Network(SAN) Fabric Design Algorithm
How IOT, Analytics and ML unfolds in Storage Fabric · 2019 Storage Developer Conference India ©...
Transcript of How IOT, Analytics and ML unfolds in Storage Fabric · 2019 Storage Developer Conference India ©...
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2019 Storage Developer Conference India © All Rights Reserved. 1
How IOT, Analytics and ML unfolds in Storage Fabric
Sharath T SMicrochip
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Our Map!
Know your sources
Collect the data
Prepare data
Machine Learning
ML based Storage Mgmt.
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Our itinerary
r Effect of IoT to Data Centersr Effect of IoT in Data Centersr Collection of data from sourcesr Prepare datar Applying ML for different uses casesr Data visualization
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Effect of IoT to Data Centers
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Effect of IoT to Data Centers
r 26 B sensors by 2020 and 50 B connected devicesr 5G IoTr Edge computingr Detailed analysisr IoT impact on data-center management
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Effect of IoT in Data CentersKnow your
sources
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End points in Data Centers
r EMS (Environmental Monitoring Systems) & ASHRAE (American Society of Heating, Refrigeration, and Air-Conditioning Engineers)r Temperature (18 to 27 °C)r Humidity and water (RH 45% to 60%)r Air flow sensorsr Static electric sensorsr Server room and rack entryr Aisle conditions
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End points in Data Centers
r Server r Storage controllerr Physical Drives (S.M.A.R.T) r Chassis
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Collection of data from sources
Know your sources
Collect the data
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What data to collect?
r SensorrTemperature, humidity, static electric charges,
intrusionr Storage
rSystem, Storage pools, Storage volumes, Drives and Chassis
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Example Data Collection
r System Informationr CPU Utilizationr Network Utilizationr Memory Utilizationr OS detailsr Uptime
r Storage Poolr Statusr Interfacer Total Sizer Unused Sizer Spare Rebuild moder Volume countr Drive countr Type
r Storage Volumer Statusr Interfacer Total Sizer Unused Sizer Block Sizer RAID Levelr Drive countr Protected by Hot-
Sparer Write-cacher Read-cacher Acceleration method
r Driver Manufacturerr Typer Statusr Interfacer Total Sizer Unused Sizer Reserved Sizer Block Sizer Transfer speedr SMART statsr Bad Blocks
r Storage Controller Information
r Statusr Moder Interfacer Temperature
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When to collect data?
r Periodic intervalrTime Series analysis and Forecasting
r Event BasedrUser initiated, System initiated
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How to collect data?r Push mechanism
r Source / System generatedr Breach of any threshold valuesr Listener is required to read and store value
r Pull mechanismr Application / User requestedr On demand / Periodicr Programmatically
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Prepare data
Know your sources
Collect the data
Prepare data
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r Types of source datar Unstructuredr Semi-structuredr Structured
r On-Line Analytical Processing (OLAP) of prepared datar Cubesr Dimensions
Data
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Introduction to Machine Learning
Know your sources
Collect the data
Prepare data
Machine Learning
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Introduction to Machine Learningr Introduction r Flow
Collecting data
Preparing data
Training the model
Evaluating the model
Improve performanceEvolution
EvolutionDigital Journal
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Data Feature Selection
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Data Feature Selection
r Filter method
r Ex: Chi-Square, LDA, ANOVA
Set of all Features
Selecting the best subset
Learning Algorithm Performance
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Data Feature Selection…
r Wrapper method
r Ex: Forward selection, Backward elimination, Recursive feature elimination, etc.
Set of all Features
Generate subset
Learning Algorithm Performance
Selecting best of Subset
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Data Feature Selection…
r Embedded method
r Ex: LASSOS, Ridge Regression
Set of all Features
Generate subset
Learning Algorithm Performance
Selecting best of Subset
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Apply ML for multiple use cases
Know your sources
Collect the data
Prepare data
Machine Learning
ML based Storage Mgmt.
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Apply ML for multiple use cases…
r Case study - Data center managementr Drive failure predictionr Storage tiering suggestionr Storage usage trendr Storage requirement prediction
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Drive Failure Prediction
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Workflow
r What is S.M.A.R.T?r Data setr Periodic collectionr Selection features / attributes r Applying Support-vector-machine to predict drive failurer Outcome
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Data set (Features)r List of S.M.A.R.T attributes
r Read Error Rater Reallocated Sectors
Countr Spin Retry Countr End-to-End errorr Temperaturer Command Timeoutr Reallocation Event Countr Uncorrectable Sector
Countr Soft ECC Correctionr G-Sense Error Rater Loaded Hours
q Sampling data (Periodic collection)Hours Temp1 . . . . . . ReadErr Servo4
2633 58 6 2944
2635 57 13 2688
2637 56 36 5189
2639 57 0 4032
2641 56 0 8384
. . . .
. . . .
2855 58 14 3322
2857 59 20 2624
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Prepared Datar Feature selection
Attribute % Good % Failed
Temp1 11.8 48.2
Temp3 35.2 45.3
Temp4 8.8 59.2
Glist 0.5 8.8
ReadError1 0.4 0.8
WriteError 0.8 2.3
Reallocated sector 5.8 30.2
Uncorrectable sector 4.8 34.5
Spin-up time 5.2 14.2
Command timeout 6.2 29.8
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Machine Learning Modelr Support-vector-machine (supervised learning)
r A Support Vector Machine (SVM) is a discriminative classifier formally defined by a separating hyperplane. In other words, given labeled training data, the algorithm outputs an optimal hyperplane which categorizes new examples.
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X X
Y Y
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X
ZY Y
X X
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X X X
Y Y Y
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X
Y
X
Y
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Machine Learningr Train the model (80%)
Good Drive
Failed DriveSVM Model
r Test the model (20%)
SVM Model
Unlabeled Drive
Performance
Tune parameters
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Outcome
r Reduce false alarm of failurer Automated policy implementation
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Storage Tiering Suggestion
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Storage Tiering
r Physically partitioned into multiple distinct classes based on price, performance or other attributesr Swordfish – ClassOfService
r Data may be dynamically moved among classes within a tiered storage implementation
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Storage Class (SNIA)r Media class
r High performance SSD/Cache
r High performance HDDr High capacity HDDr Tape
r Data classr Mission criticalr Hotr Cold
r Pricing classr Networked storager DASr Cloud
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Feature Collectionr Data/Block access frequencyr Last accessedr Last modification timer Size of objectr Encryptionr Drive type (HDD, SSD)r Drive interface typer Drive temperaturer Caching informationr …
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Machine Learning Model
r k-means (unsupervised learning)r clusteringr centroidr aggregation
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Machine Learning
Block
Acce
ss fr
eq.
On Cache On SSD On HDD
BlockAc
cess
freq
.Block
Acce
ss fr
eq.
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Storage Usage Trendr How Storage is used in a data center over a time period.r Time Series Algorithmsr Ex of trends
r Which class of service is more used in futurer Which media class will be more used in future
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Data Visualization
Know your sources
Collect the data
Prepare data
Machine Learning
ML based Storage Mgmt.
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Data Visualizationr Tools available
r Power BI, Tableau, Data Dog – commercial r Dash (personal favorite!) – opensource
r Dashr Pure python based frameworkr Abstracts away all technology and protocolr Ideal for building data visualization appsr https://plot.ly/products/dash/
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An image of Halley's Comet taken in 1986. (Image: © NASA)
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Fraunhofer lines, in astronomical spectroscopy
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Thank [email protected]
https://www.linkedin.com/in/sharath-ts-5720a520