1. PRESENTATION TITLE GOES HERE DAS to SAN -- iSCSI Offers a Compelling Solution Presented by: Jason Blosil, NetApp and Gary Gumanow, Dell

2. Ethernet Storage Forum Members Compellent Dell EMC HP Intel Juniper Networks Microsoft NetApp Panasas Sun The SNIA Ethernet Storage Forum (ESF) focuses on educating end-users about Ethernet-connected storage networking technologies. 2

3. Webcast Presenter 3 Jason has over 13 years of Finance and Marketing experience with manufacturing and technology firms. For the last 9 years, he has worked in product management and product marketing for companies within the data storage industry. His expertise includes server based storage and RAID, as well as external storage solutions. Jason currently works for NetApp in Product Marketing, specializing in iSCSI based solutions. Jason Blosil Product Marketing, NetApp Gary Gumanow Product Line Manager, Dell Gary Gumanow has over 25 years of experience in IT management, systems integration, product management, and strategic product planning. Gary is currently responsible for product marketing of Dell’s EqualLogic storage arrays. Prior to Dell he spent ten years at Intel where he brought over 20 Ethernet products to market. Gary holds two patents and has authored many papers on networking and server platform architecture.

4. Today’s Webinar What we’ll cover today… Describe characteristics and components of Direct Attached Storage (DAS) vs Storage Area Networks (SAN) and why iSCSI SANs are an ideal first step to greater data center efficiency through Ethernet based SANs You are an… IT managers looking to deploy SANs for the first time IT managers rethinking their existing SAN infrastructure in favor of IP SAN We hope you enjoy this webinar 4

5. Future Events Two upcoming iSCSI SIG webinars: March 3 rd – Optimized Storage Environments April 7 th - Disaster Recovery/Cloud/Backup Storage Networking World – Spring 2010 Orlando Sign up for these tutorials when attending: iSCSI SANs - Ideal Applications, Large and Small iSCSI - A lossless Ethernet Fabric with DCB 5

6. Agenda Characteristics & Limitations of DAS Characteristics & Benefits of SANs Why iSCSI for SANs 6

7. Buying Storage with DAS Storage purchase includes server hardware with disk capacity Capacity requirement is a guess – so is the right server Typical use is for a single application As capacity requirements increase, so do the number of servers “I need more storage... …I’ll buy another server.” 7

8. Server Components Motherboard Disk drive Network interface RAID controller I/O cable Fan * Power supply * * Commonly redundant in high-end server platforms Single Points of Failure 8

9. DAS Options - JBOD Advantages Greater expandability / higher density storage Redundant components at the JBOD Possible server cluster & failover Disadvantages Server clustering is complicated Server & I/O path still not redundant 9

10. Additional Challenges with DAS Limited capacity in server chassis Storage inefficiency - islands Software / firmware updates Backup and restore Site to site failover Limited server virtualization capabilities Tape Drive VM1 VM2 10

11. VOTE #1 – DAS USAGE 11

12. Storage Comparison 12 DASNASSAN Application Server File System RAID File System RAID Application Server RAID File System

13. SAN Storage Components Storage network adapters SAN switch Storage system Redundant controllers Redundant hot-swap power & cooling units Expandable I/O ports Integrated disk bays or separate disk shelf (JBOD) Controller 1 Controller 2 PS1PS2PS3 Passive Midplane 13

14. What SANs Deliver Value of Storage Area Networks Improved reliability and reduced cost of backup Improved scalability of storage capacity and performance Simplified storage provisioning Improved data availability Top reasons for deploying a SAN Back-up Storage consolidation Server virtualization Satisfy demands for additional capacity Performance Disaster recovery New project or application deployment 14

15. SAN Benefits - Reliability Redundant components No single point of failure RAID and redundancy More spindles with SAN Redundant RAID and cables Backup and recovery is universal Multi-pathing (MPIO) Fault-tolerance Load balancing 15

16. SAN Benefits - Serviceability Modular design Hot swap of components Software updates are non- disruptive Redundant data paths across network CLR 1CLR 2 PS1PS2PS3 16

17. SAN Benefits – Resource Mobility Virtual Machines (VMs) stored as files Hypervisors aware of VMs on other servers Permit movement of VM for load balancing or server to server and site failover VM Files 1 2 3 VM1 VM2 VM3 Hypervisor VM2 17

18. SAN Benefits - NetBoot Network drive appears to server as a local drive Benefits: No special purpose hardware Broad OS support Lowers server costs Boot volumes protected Improved performance Simplified OS updates / management Improved disk efficiency Easy to scale 18 Boot Volumes

19. 19 Network Boot w/ Rapid Cloning LUN cloning reduces capacity required for common boot images Master boot image is replicated with space efficient copies Clones created in seconds/minutes Benefits: Reduced storage capacity requirements Rapid server deployment Rapid server scaling and redeployment Master Boot LUN Cloned Boot LUNs

20. SAN Benefits – Backup and Restore Reduce complexity and increase efficiency Important in virtual server environments Single point backup Reduces network congestion to host Snapshot and disk to disk replication Tape Drive SAN Storage 20

21. SAN Benefits – Performance & Scalability Service multiple applications with single storage pool More spindles for better IOP performance High performance networks with multiple paths Port bonding for IP traffic – increase overall bandwidth Easily add capacity online Capacity allocation and resizing of LUNs in increments less than a drive 21

22. VOTE #2 – SAN OBSTACLES 22

23. Perceived Obstacles to Deploying SANs Complexity Difficult to setup and configure Footprint SANs can require more equipment Management Requires high touch administration Cost All of that redundancy comes with a price iSCSI Simplifies the Environment 23

24. iSCSI SAN Reduces Complexity Tape Drive VM1 VM2 Tape Drive VM1 VM2 DASiSCSI SAN iSCSI Storage 24

25. Setup - DAS vs iSCSI SAN Install RAID Driver Install RAID management software (optional) Create volume Format volume Install iSCSI Driver Install storage management software (optional) Create LUN on storage Map drive letter to storage LUN IP address Format LUN 25 DASiSCSI SAN

26. iSCSI OS Network Boot Support 26 OSInitiatorBoot Microsoft Native S/W, 3rd Party HBA HBA, S/W Red Hat Native S/W, 3rd Party HBA HBA, S/W Oracle Native S/W, 3rd Party HBA HBA, S/W SUSE Native S/W, 3rd Party HBA HBA, S/W IBM (AIX) Native S/W, Native HBA HBA, S/W Sun (Solaris) Native S/W, 3rd Party HBA HBA HP (HPUX) Native S/W No VMware Native S/W, 3rd Party HBA HBA Novell (Netware) Native S/W No

27. iSCSI Performance Options Software Initiator + Standard NIC Software initiator runs on host CPU Low cost (Free download) May offer highest performance, but highest CPU overhead About 85% of iSCSI deployments TCP/IP Offload Adapter Lower host CPU overhead Added cost for adapter, but uses OS iSCSI initiator iSCSI HBA CPU overhead similar to FC adapter Highest cost solution 27

28. DAS vs SAN – Cost Compare (6TB capacity) Storage Server - $8,000 est. (tower) / $13,000 est. (rack) 2 Intel Xeon Processors / 8GB memory each Redundant power supplies RAID Controller / cables / disks Network Adapter (4 port) Microsoft Server 2003 / Symantec backup JBOD - $7,000 est. Redundant power Disks iSCSI Storage System - $13,000 est. Redundant controllers & power Disks 28

29. Why IP SAN (iSCSI)? Mature standard (2004) Looks like a local SCSI disk Leverages IP Expertise Economies of scale Scalability / Performance Improved TCO vs DAS 29 IP SAN

30. VOTE #3 – ISCSI USAGE 30

31. 31 Questions & Answers

32. 32 To download this Webcast after the presentation, go to http://www.snia.org/about/socialmedia/ http://www.snia.org/about/socialmedia/

33. Ethernet Storage Forum Members Compellent Dell EMC HP Intel Juniper Networks Microsoft NetApp Panasas Sun The SNIA Ethernet Storage Forum (ESF) focuses on educating end-users about Ethernet-connected storage networking technologies. 33