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Designing a Highly Available Management Cluster for the Cloud
Arron Stebbing
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Why a management cluster?
• Availability • Manageability • Stability • Support and Troubleshoo?ng
VMware vCloud Architecture Toolkit – 3a Architec7ng a VMware vCloud
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Simple or Complex?
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Design Goals
• Design for Failure • Design for Resilience • Design for Data Integrity • Design for Recoverability
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Infrastructure
• Hosts – 3 or more
• Network – Dedicated
• Storage – Dedicated / Converged
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Not a Marke?ng Slide.
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What is in my management cluster?
• Ac?ve Directory / DNS • Database (SQL/Oracle) • VMware Appliances • Message Bus (RabbitMQ) • Load Balancers • Monitoring PlaSorm • Remote Access (View/Terminal Server) • Time Services • Syslog
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Ac?ve Directory / DNS
• Server Core OS • List Object Mode • Cer?ficate Services • Independent domain
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Databases
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VMware Stack
• Use Appliances • Enable / Implement Core Features • Configure Alerts and SNMP
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Message Bus
• Enabling so much more!
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Load Balancing
• Virtual Appliances • Ensure Health Status • Load Balance Core Services – LDAP – DNS – Web Applica?ons
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Vendor Applica?ons
• Compute Management – Configura?on – Remote Management
• Network Management – Single pane of glass – Version Control
• Storage Management – GUI
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Remote Access
• Out of Band Management • Secure Access – RDP/SSH • VPN
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Monitoring / Aler?ng
• Email • Syslog • SNMP • SMS, Mobile
• Consume everything!
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Configura?on Management
• Define standards
• Maintain standards
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Security
• Isola?on • Audi?ng • Event and Change Tracking • Change defaults • Role based access controls
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Mul? Site?
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High Availability vs Disaster Recovery
• Requirements • Availability • RTO / RPO • Supported?
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Data Protec?on
• Configura?on Level • Applica?on Level • Image Level • Storage Level
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Right Sizing
• Ignore Defaults • Start Small, Upscale Later • Don’t be scared!
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Cost?
• VMware Licensing • Microso^ Licensing • Third Party So^ware Costs
• Open Source non cri?cal toolsets – IPAM – Syslog
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Best Prac?ces and Recommenda?ons
• VMware vCloud Architecture Toolkit • Microso^ Infrastructure Planning and Design • Vendor documenta?on • Blogs / Forums
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Ques?ons?