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EMC MULTISITE DISASTER RECOVERY FOR MICROSOFT SQL SERVER 2012. EMC VNX5700, EMC FAST Cache, SQL Server AlwaysOn Availability Groups. Strategic Solutions Engineering (SSE) EMC Solutions Group (ESG) David Ring Michael Morris. Agenda. EMC Proven Solutions SQL Server 2012 Overview
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EMC MULTISITE DISASTER RECOVERY FOR MICROSOFT SQL SERVER 2012 EMC VNX5700, EMC FAST Cache, SQL Server AlwaysOn Availability Groups Strategic Solutions Engineering (SSE) EMC Solutions Group (ESG) David Ring Michael Morris
Agenda • EMC Proven Solutions • SQL Server 2012 Overview • Solution Overview • Architecture Design • Test Results • Summary • Q&A
Cork, Ireland Shanghai, China Hopkinton, MA Singapore Santa Clara, CA Vienna, Austria EMC Proven Solutions Approach 1 2 3 4 Capture and define Test and validate Document Publish Requirements …we champion the customers …and test the solutions you would like
AlwaysOn Failover Cluster • Shared storage • Passive secondary replicas • Protects server, instance, and database • Multi-subnet support now available • Database Protection • Microsoft SQL Server AlwaysOnFailover Cluster
SQL Server 2012:Multi-subnet Support • Cluster Setup support—intelligently detects a multi-subnet environment • SQL Server Engine support—skips binding to any IP address that is not in an online state • Cluster Properties—Dependencies
AlwaysOn Availability Groups • Synchronous or Asynchronous • Up to four replicas • Active secondary replicas • Protects database only • Database Protection • Microsoft SQL Server AlwaysOn Availability Group
Solution Purpose • SQL Server 2012 AlwaysOn • Characterize a geographically dispersed SQL Server 2012 environment protected by AlwaysOn technology, and highlight multi-subnet support at both synchronous and asynchronous distances. • EMC VNX5700 • Optimize database storage performance with EMC FAST Cache. • Integrate a simple, efficient, and powerful platform for enterprise-class SQL Server 2012 infrastructures. • Validate the ability of the VNX5700 storage array to support SQL Server 2012 instances running OLTP-like workloads that generate over 50,000 IOPS.
Solution Architecture 2 * SQL Servers • 1 * Primary (Production) • 1 * Secondary (DR) FAST Cache on production • 4 * DB’s: 1.8 TB of data • Dataset: 60% hot FAST Cache impact: x4 (TPS/IOPS) latency of <3ms
Storage Design Production array storage configuration
Throughput in IOPS (transfers/sec) • Baseline • 2hr FAST Cache warmup • FAST Cache Steady State Distance ...80km ...800km …4,000km Transfers/sec (IOPs)
Comparison of Disk Reads/Writes On Primary And Secondary Replicas
SQL Server CPU Utilization • SQL Server CPU impact across synchronization state and distance
Throughput in Transactions/Sec (TPS) • Baseline • 2hr FAST Cache warmup • FAST Cache Steady State Distance ...80km ...800km ...4,000km • Disk transactions per sec (TPS) for both primary and secondary replicas
Physical Disk Utilization • Baseline • 2hr FAST Cache warmup • FAST Cache Steady State Physical disk utilization for storage pool on production and DR arrays
Storage Processor Utilization • Baseline • 2hr FAST Cache warmup • FAST Cache Steady State • SP utilization for SPA and SPB on production and DR storage arrays
Shared Storage Requirements For Seeding • A shared storage space is required when performing a Full Initial Data Synchronization as part of availability group creation. • Users should consider the storage used for these database backups and restorations. • The backup process has high bandwidth requirements for storage.
Availability Group Creation Times • Synchronous and asynchronous availability group creation at 80, 800, 4,000 km
Summary AlwaysOnAvailability Groups provide protection at database level • Synchronous – commit mode • Asynchronous – commit mode • Powerof the EMC VNX to host mission critical SQL Server 2012 environments FAST Cache • significantly boost performance • Incredibly low SQL Server datafile latency <3 ms FAST Cache increased SQL Server throughput by x4 (TPS/IOPS) while maintaining a very low latency of <3ms