1. Maximizing Your VMware Infrastructure with Scale Out Storage September 14, 2011

2. 2 Introduction Shared storage is a key enabler for virtualization, but also a key obstacle to successful projects VMware and Coraid complement each other to: –Automate storage operations –Reduce complexity –Reduce capital costs with scale out economics Using VMware storage features with Coraid is simple and powerful Automate Reduce Complexity Scale Out Reduce CAPEX and OPEX

3. 3 About Coraid 3 Ethernet SAN technology: EtherDrive® –5-8x price performance advantage vs legacy storage –Radically simplified, elastic SAN topology Founder – inventor of PIX, LocalDirector Coraid was bootstrapped in Linux market starting 2004, built business with 1400+ customers and multi-million run rate Customers in 40+ Countries 100% Channel-driven model $35m funding, experienced exec team 6x Growth in 18 Months 1,400+ Customers

4. 4 Agenda 1.The Changing Role of Storage in the Virtualized Data Center 2.Automating Storage Operations with VMware vSphere 3.Scaling Out to Reduce Complexity and Costs 4.Getting Started with vSphere and Coraid

5. 5 Storage is a Key Enabler for Virtualization Shared Storage

6. 6 …But also an Obstacle Server Server-related Apps, Power, Cooling, etc Increasing Storage Costs Physical Virtual $

7. 7 Efficiency Problems Plague Storage Admins 50 – 249 TB250TB – 1PB1PB+ Storage Under Management Average Number of Admins Source: Enterprise Strategy Group, 2010

8. 8 Scale Out Compute Stresses Storage Performance 8 Bottleneck: Dynamic Virtual Workloads Server Cluster with VMotion Extremely Complex SAN Management Chaotic Data Layout on Drives: Head Contention

9. 9 Agenda 1.The Changing Role of Storage in the Virtualized Data Center 2.Automating Storage Operations with VMware vSphere 3.Scaling Out to Reduce Complexity and Costs 4.Getting Started with vSphere and Coraid

10. 10 VMware’s Answer: Storage Automation If storage is complex, automate the key operations –Smart placement of VMs to storage based on utilization and performance –Manage performance SLAs for each VM –Non-disruptive migration to address capacity or performance issues as they appear –Replicate VMs to secondary site for data protection vSphere 5 significantly increases storage automation features Storage vMotion Storage I/O Control VAAI Storage DRS* Profile Driven Storage* vSphere Replication* vSphere Storage Features * New in vSphere 5

11. 11 Storage I/O Control Overview: –Set per VM “shares” of access to a shared datastore –Throttle lower priority VMs when contention exists –Contention defined as exceeding a configurable latency threshold Benefits: –Set up SLAs for use of storage resources –Addresses “noisy neighbor” problem 1. VM requests more resources 2. Other VMs are starved for resources 3. w/ I/O controls, can give VIP VMs preferential access

12. 12 Storage DRS Overview –Tier storage based on performance characteristics (i.e. datastore cluster) –Initial storage placement based on datastore utilization –Proactive recommendations to migrate VM files based on utilization or latency Benefits –Maintain virtual machine SLAs –Manage storage as a pool of resources Tier 1Tier 2Tier 3 High IO Throughput

13. 13 VMware Site Recovery Manager Site Recovery Manager automates the Disaster Recovery process NEW: vSphere Replication: Simple, cost-efficient storage replication across sites NEW: Automated Failback: –Manage reversal of replication –Apply recovery plan in reverse direction vCenter Server Site Recovery Manager vCenter Server Site Recovery Manager Main Site vSphere New in 2011: Failback New in 2011: vSphere Replication DR Site

14. 14 Agenda 1.The Changing Role of Storage in the Virtualized Data Center 2.Automating Storage Operations with VMware vSphere 3.Scaling Out to Reduce Complexity and Costs 4.Getting Started with vSphere and Coraid

15. 15 Coraid’s Answer: Remove Complexity EtherDrive: Dynamic Virtual Workloads Server Cluster with vMotion™ AoE EtherDrive Storage Arrays EtherDrive Benefits Ethernet (1Gb / 10Gb) Massively Parallel 5-8x Price Performance Advantage Faster than Fibre Channel Massively parallel 1/5 th the Cost with off-the-shelf hardware Operational Simplicity: Eliminates complex topologies and multipathing Simple recovery – Zero Hour Support Scale-out No controller bottleneck Grow in-line with business demand

16. 16 Modular, Scale-Out Architecture One-Tier-for-All Benefits Single building block to match any data requirement Non-disruptively add new storage capacity to the network Scale performance linearly with distributed processing architecture Mix drive types and configuration for fine-grain performance optimization Coraid Ethernet SAN VMware ExchangeVDI SQL Exchange VDI SSD SAS SATA

17. 17 SAN Evolution Savings potential: 20% of IT Budget IT Budget Complexity Price-Performance 2x storage capacity Improve performance Decrease OPEX Move to Ethernet and elastic cloud architecture Coraid Value Proposition 20% FICON/ESCON Fibre Channel FCoE iSCSI Ethernet

18. 18 Traditional Storage: Complex in 1:1 Configs StepsFibre Channel 1Plug in physical HBA 2Load HBA specific firmware 3Install MIPO driver 4Configure storage port connections 5Capture WWN (will need this later) 6Perform LUN discovery 7Log into LUN (requires storage access) 8 Zone HBA to storage port (MIPO requires zone for each path) 9Configure NPIV (if Vmotion required) 10Configure storage 11Mask Initiator (requires WWN) 12Go to the HBA and perform a LUN discovery 13Mount disk 13 steps = Hours HBA MPIO Server Fibre Channel Switch Controller 1Controller 2 Controller Network (FC, SAS, IB) Ethernet Switch Users Disk Subsystem BA

19. 19 Network (AoE) Server App OS HBA Server Cluster App OS App OS HBA Parallel File System Server HBA EtherDrive 19 Configuring Coraid LUNs automatically appear as locally attached LUN masking for 1:1 Server/Storage VLANs for Cluster, Virtual OS, or Parallel File System Mask or VLAN BB B Mask A A HBA Server Virtualization OS Server App OS App OS App OS App OS App OS App OS Mask or VLAN C CCC DEF FFF EEE DDD

20. 20 Protocol Summary iSCSI/FC/FCoEAoE Topology ConnectionConnectionless Transport IO Session/Serial delivery IO TCP scatter/gather Not required Disk IO, Ethernet Frames Multi-Path Multipath Driver Manual Setup Not required Automatic Dropped Data Recovery iSCSI: TCP with Retransmit FC: Link Flow Control, SCSI timeout AoE Correlation Timeout AoE Retransmit Out of Order Data iSCSI: TCP scatter/gather FC: Prevented via Link Level Flow Control In order arrival not mandated Overhead Fibre Channel provides 2-3x higher performance than iSCSI AoE is the most direct and fastest SAN protocol

21. 21 Agenda 1.The Changing Role of Storage in the Virtualized Data Center 2.Automating Storage Operations with VMware vSphere 3.Scaling Out to Reduce Complexity and Costs 4.Getting Started with vSphere and Coraid

22. 22 Shared Storage as a Local Disk

23. 23 Scheduling Snapshots

24. 24 Configuring Storage I/O Control Enable Storage I/O Control for each datastore Set the congestion threshold (30 ms by default) –When device latencies are greater than threshold, vSphere sets IOPS limits on VMs and changes device queues on the hosts Latency threshold recommendations based on drive type: –SAS 20–30ms –SSD 10-15ms –SATA 30-50ms

25. 25 Configuring Storage DRS Create “datastore clusters” –Aggregates individual datastores –Use storage with similar performance and protection characteristics Configure thresholds for utilization and I/O latency: –Utilization threshold is between 50% and 100% –I/O latency defaults to 15 ms Set Storage DRS to make migration recommendations or to automate migrations

26. 26 Summary Shared storage is a key enabler for virtualization, but also a key obstacle to successful projects VMware and Coraid complement each other to: –Automate storage operations –Reduce complexity –Reduce capital costs with scale out economics Using VMware storage features with Coraid is simple and powerful Automate Reduce Complexity Scale Out Reduce CAPEX and OPEX