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VMware vCenter Server Heartbeat – Overview Agenda Why is VMware vCenter Availability Important? What Needs to be Protected? Protecting vCenter Server with vCenter Server Heartbeat Self Service Management Self Service Portal vCenter Service Catalog Billing/ Chargeback Availability Security Performance 99.99% High .2 Milliseconds SLA Driven Management Model Infrastructure Management Provisioning Configuration Capacity Operations Performance Virtual Datacenter Operating System Availability What is VMware vCenter Server? vCenter Server: A Key Infrastructure Component A universal hub for virtualization management How Do You Use vCenter Server? Monitor cluster, host and VM performance Manage VM and host provisioning Patch and update hosts and VMs Configure and operate VMotion, DRS and HA Provision and manage a VDI environment Manage disaster recover plans Impact of vCenter Server Downtime Component Impact Experienced Virtual Machines Management requires direct connections to host; can’t provision new VMs from templates ESX Servers Management requires direct connections to host Performance & Monitoring Statistics Historical records will have gaps during outages, still available via ESX Servers VMotion / Storage VMotion Unavailable VMware DRS Unavailable vCenter Plug - Ins Unavailable VMware HA HA failover works, admission control unavailable VMware VDI Cannot provision new desktop instances Agenda Why is VMware vCenter Availability Important? What Needs to be Protected? Protecting vCenter Server with vCenter Server Heartbeat Determining a Strategy Define the Scope of Protection Desired Which is most important? Local high availability for hardware/network failures? Protecting application integrity and uptime against all types of threats? Remote disaster recovery for large scale, site-wide outages? What is the recovery time objective? Need to base this on what functionality is unavailable during vCenter Server outage How Do You Protect vCenter Server Today? • • • • • No protection Keep a backup copy archived Cold standby Clustering VMware HA Protecting vCenter Server Replication of state files VI Services vCenter Server vCenter Server Primary Standby VI Inventory Standard DR Solution Database Server Database Server What is required to restore vCenter functionality? vCenter Server is an almost stateless application Data stored in the vCenter database is the most critical resource Following data is necessary to restore the vCenter functionality (with intact database) vCenter server IP Address DNS name for ODBC connection License files for the License Manager Server Security Certificates vCenter Configuration file vCenter Plug-in data Customized data from upgrade directory (if applicable) Cold Standby Recovery Procedure: Simple, Slow Maintain separate up to date copy of local configuration files ESX Server hosts reconnect automatically Disaster! yes Able to assign primary’s IP to standby? no Done Run script to reconnect all ESX Server hosts Install fresh vCenter instance Install config files; connect to standby DB Warm Standby Recovery Procedure: Complex, Faster Keep local configuration files synchronized between primary and standby ESX Server hosts reconnect automatically Disaster! Also allows for scripting and automation yes Able to assign primary’s IP to standby? no Done Faster end-to-end recovery (RTO) Run script to reconnect all ESX Server hosts Replication of configuration files through host-based replication or backup tools Agenda Why is VMware vCenter Availability Important? What Needs to be Protected? Protecting vCenter Server with vCenter Server Heartbeat Solutions for Protecting vCenter Server vCenter downtime greatly impacts productivity of VI Administrators However, several options can be used to mitigate the potential for vCenter Server downtime The solution of choice will depend on level of protection desired and recovery point objectives. VMware Solutions Third-Party Solutions VMware HA Backup VMware vCenter Server Heartbeat Clustering Host Replication Protecting vCenter Server Against Downtime Threats vCenter Server Linked Mode provides visibility across multiple vCenter Servers (coming in 2009) Replicated licenses & roles vCenter Server vCenter Server vCenter Server vCenter vCenter Server vCenter Server Server VMware HA ESXi ESX ESX ESXi ESXi Active vCenter Server vCenter Heartbeat ESXi Passive vCenter Server VMware HA protects a virtualized vCenter Server against hardware and OS downtime ESX Heartbeat provides broad failover protection for vCenter Server against all types of planned or unplanned downtime Introducing VMware vCenter Server Heartbeat Extends availability for the vCenter Server platform Add-on to vCenter Server protects critical components of the infrastructure Deep awareness of all vCenter Server components Simple configuration and deployment Replicates all data and transactions to a standby server Failover of the application and database over the LAN or WAN Introducing VMware vCenter Server Heartbeat Best-of breed-technology VMware has selected Neverfail to provide the underlying technology Proven technology supports SQL, Exchange, Blackberry availability vCenter Server Heartbeat is a VMware product and fully supported by VMware vCenter Server Heartbeat Hardware Failures OS Failures vCenter Server QuickTime™ and a decompressor are needed to see this picture. Application Failures Network Failures vCenter Server Heartbeat vCenter Server Heartbeat Architecture •Software Based Solution Providing: •Paired Servers with Shared Nothing Architecture •Active/Passive clone •Hardware Agnostic •Physical & Virtual Support •Application Awareness (AMF) •Hardware and Software Redundancy •Automated Failover •Planned Maintenance •Network Monitoring •Low Bandwidth Module Comparing vCenter Server Heartbeat Deeper more granular protection than other solutions Host Replication Heartbeat Partial Yes Hardware & OS failures Yes Yes Protects vCenter Server components No Yes Network failures No Yes Configuration Agnostic Yes Yes Medium-High Low WAN failover Complexity vCenter Server Heartbeat: Defense in Depth Complete vCenter Heartbeat Depth of HA protection Replication Clustering VMware HA Hardware/OS Specific All Breadth of workloads supported Summary: Why vCenter Server Heartbeat? High availability for VC is growing in importance for customers running VMware in production Underlying infrastructure needs to be fully protected HA provides robust general-purpose protection of virtualized workloads Need to protect against configuration errors, network failures, OS failures, database failures with WAN failover support Many customers run vCenter Server on a physical server Other solutions are expensive, complex and lack app awareness, support for database, WAN failover Customers have been asking for a VMware solution that provides more granular availability for vCenter Server Introducing VMware vCenter Server Heartbeat Extends availability for the vCenter Server platform Announce at VMworld Europe, GA in mid-March Add-on to vCenter Server protects critical components of the infrastructure Deep awareness of the vCenter Server components Failover of the application and database over the LAN or WAN Best-of breed-technology VMware has signed an agreement to license the technology for Heartbeat and sell it as a VMware product Proven technology supports SQL, Exchange, Blackberry availability VMware will provide training and support as with any other VMware product Neverfail provides underlying technology and updates, as well as support for field, channel and GSS enablement Questions? Backup Slides VMware HA for vCenter Server Availability This section discusses how HA can be used for vCenter Server availability Solutions for Protecting vCenter vCenter downtime greatly impacts productivity of VI Administrators However, several options can be used to mitigate the potential for vCenter downtime The solution of choice will depend on level of protection desired and recovery point objectives. VMware Solutions Third-Party Solutions VMware HA Backup VMware vCenter Server Heartbeat Clustering Host Replication vCenter with VMware HA: Out-of-Band Two approaches vpxd Two vCenter instances manage each other (pictured) Both run in HA cluster Each manages the other’s HA cluster vpxd Separate vCenter instance is used to manage 2-node HA cluster (not pictured) vCenter with VMware HA: In-Band vpxd vCenter Server manages the VMware HA cluster providing its protection When the ESX hosts with vCenter VM fails, VM is restarted automatically by HA Failover functionality provided by HA is independent from vCenter (post-configuration) Comparing Solutions: VMware HA and Clustering VMware HA Clustering WAN failover No No Hardware & OS failures Yes Yes Database Database via clustering Network failures No Yes Configuration Agnostic Yes No Complexity Low High Protects vCenter Server components