1. Secrets to Fast, Easy High Availability for SQL Server in AWS
Cassius Rhue, Director, Engineering and Heath Carroll, Software Engineer
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Introductions
Heath Carroll Software Engineer
Cassius Rhue
Director, Engineering
Leads SIOS Technology’s software product development and engineering team
17+ years of software engineering and software testing experience
Manages development of SIOS SANless clustering products
Led development of deployment templates for leading public cloud
Expert in development of deployment templates for SANless HA clusters in leading public cloud
Doctoral candidate in computer science, MEng. in MEng, in Computer Science, and a BS in Mathematics and Computer Science from the University of South Carolina, Columbia
Copyright © 2017 SIOS Technology Corp. All rights reserved.

3. Business Critical Applications (SQL) are Moving to Cloud - Last
No tolerance for downtime
Recovery Time and Point Objectives
High Availability and Disaster Recovery Protection
Application response time is critical
Performance
More need for flexibility and agility
Resource allocation, efficiency, reliability
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4. What are the minimum requirements for moving to the Cloud?
Want to gain
Dynamic resource allocation
Configuration flexibility
Cost efficient DR
Rapid provisioning
Business agility
Don’t want to give up
Control
Flexibility
Performance
High Availability
Disaster Recovery
But
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5. Redundancy is not enough.
Microsoft SQL Server cannot be made redundant with a simple load balancer and multiple instances in different “Availability Zones”
Web and application services in different geographic locations in the cloud
What about the Data Tier?
Databases such as SQL Server need additional configuration
Availability Zone
Availability Zone
Load balancers in front of Web or Application servers
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6. Moving SQL Server to the Amazon Web Services Cloud
Cloud does not negate the need for HA, DR and Backup
Options are basically the same as on premises, but no SAN available
Availability Groups
Quick Failover
Readable Secondary
Automatic Page Repair
Does not require 3rd party products
Failover Cluster Instance
Protects Entire Instance
Supports DTC
Works with SQL Server Standard Edition
Supports SQL Server 2008 R2 and earlier
Easier Management
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7. High Availability Clusters in Cloud Environments
Failover
SQL Server
Storage
High availability failover clustering with WSFC requires shared storage that is not available in cloud
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8. High Availability Clusters in Cloud Environments
SANless Clusters synchronize storage in cloud
WSFC sees synchronized cloud storage as a SAN
You get added configuration flexibility and ease of use
Failover
SQL Server
Storage
Replication
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9. SANless Clustering in AWS
(Multi AZ & Multi-Subnet cluster)
Failover
Availability Zone1
Availability Zone2
Replication
Across Availability Zones
Node1
Node2
Availability Zone3
Witness
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10. SANLess Cluster vs. Availability Groups
AlwaysOn Availability Groups
SIOS SANLess Cluster
Support SQL Standard Edition 1 4
Distributed Transactions
Unlimited Databases
Protects System Databases (Master, MSDB, etc)
Eases Database Administration
Support more than 2-nodes in failover configuration 2
Replicates Data other than SQL
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11. AWS Quick Start Deployment Templates
Automated reference deployments for key workloads on AWS
Launches, configures, and runs the AWS service required to deploy a specific workload
Uses AWS best practices for security and availability.
Eliminate manual steps with a single click – they are fast, low-cost, and customizable.
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12. Amazon Machine Images - AMI
Available for purchase on AWS Marketplace
Provide a base image for software configuration
Add to an existing deployment or use to deploy a new SQL Server cluster in AWS
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Typical Use Cases
Test and Dev
Two-node HA Cluster with SQL Server Standard Edition
Rapid deployment for Proof of Concept
Repeatable reference deployment
Can combine with a SIOS AMI to expand to multi-node cluster
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14. Live Demo SIOS DataKeeper Cluster Edition in AWS Cloud
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Who is SIOS?
Founded in 1999
Headquarters in San Mateo, CA
Our partners are industry leaders
Offices across the US, UK and Japan
More than 60,000 licenses are installed globally in a wide range of industries
SIOS Protection Suite™ and SIOS DataKeeper™ Cluster Edition
HA Clusters in Leading Public Clouds; AWS, Azure, Google Clouds
Windows and Linux HA, DR, and Replication Solutions and Services
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