i Shared Product Overview Agenda About

i. Shared™ Product Overview

Agenda ■ About Wide Area File Services (WAFS) ■ Server Consolidation – Objectives and Pitfalls ■ i. Shared Solution – – – Performance Data Reduction Branch Office Services Data Integrity Scalability Business Continuity ■ i. Shared for Mobile or Home-based Users ■ Why is i. Shared Different? ■ Summary 2

Why is WAFS Important? ■ Remote Server & Storage Problems – Data and storage growth at the branch – hard to manage ■ ■ ■ – Increased storage growth Lack of control – compliance issues (SOX), versioning Data at risk – poor backup processes (managing tapes) Server management issues – costly, risky & inefficient ■ ■ ■ Limited IT expertise in the branch Costly to administer and expand Problems maintaining and fixing ■ Collaboration problems – Sharing files between sites is TOO cumbersome – – Slow performance – CAD files, diagnostic images, Excel spreadsheets & word documents, etc Versioning control – managing last and best 3

Server Consolidation Objectives Streamlined, consolidated branch office IT environment without sacrificing performance or introducing risk Regional Office Lower IT total cost of ownership at the branch office Branch Office WAN Enterprise-class, well managed storage & apps in the Data Center 4

Server Consolidation Pitfalls Performance problems at the branches and more traffic on the WAN Regional Office Branch Office WAN Increased management overheads and file integrity risks at the Data Center 5

i. Shared Solution ■ Deliver on promise of Server Consolidation – – ■ Lower costs / complexity via storage, server, and backup consolidation Remove servers from the Branch Office Eliminate problems associated with Server Consolidation and Collaboration: 1. Provide LAN-like performance at Branch Offices – Leverage unique WAFS WAN optimization for industry’s highest performance from centralized servers 2. Reduce impact on WAN – Use data reduction and compression to minimize WAN traffic 3. Eradicate data integrity risks – Take advantage of unique file-aware caching, locking and distributed filesystem 4. Overcome manageability challenges – Centralize IT services, backup & management functions and software distribution 6

i. Shared Product Characteristics ■ Scalable solution – Scales to hundreds of branch offices and offers range of form factors for branches of 1 -500 users ■ Hardware independent – Native Windows or Linux-based appliance implementations – Qualified servers – Software-based deployment option ■ Data Center, Branch Office, mobile or homebased 7

i. Shared Models i. Shared Appliances i. Shared Software TN-50 “Mini” TN-100 TN-300 Qualified Server Platforms Appliance Profile Small Office/Home Office (<5 users) Medium Office (6 -50 users) Large Office (51 -500 users) Various Memory (min/max) 1/2 GB 2/4 GB 4/4 GB 2/4 GB 1 x 160 GB 2 x 250 GB w/RAID 2 x 500 GB w/RAID 2 x 250 GB+ w/RAID 50 GB 100 GB 300 GB 100 GB to 1 TB Windows No Yes Yes 1 x Gb. E 2 x Gb. E Set-top Box 2 U Rack Mount Various Hard Drive Cache Storage Operating System Redundancy Network Form Factor 8

i. Shared Enables the Consolidated Network Step 1 “Branch Office in a Box” 1 • Drop-in Appliance solution to Server Consolidation problems • Virtual storage, IT services, Wide Area File Services, WAN Optimization, and ECDN • Transparent, remotely managed 2 Step 2 LAN-like performance at the branch office • Fast access to centralized or remote files via WAFS • Slashes latency • Optimizes CIFS, TCP, & speeds application performance 4 Step 2: Provide Branch Office IT Services • Local handling of print, domain controller, DNS/DHCP, SMS, etc. • Single point of remote management for central admin WAN Branch Office Data Center 3 Step 2: Reduce WAN traffic • File-aware differencing, compression, and disk-based data reduction, pre-population & content distribution IT 5 Step 2: Eliminate data integrity & compliance risk • Safe and scalable centralized storage • “File-aware” distributed file system • Unique file-locking ensures integrity during saves • No per-site data mirroring at Data Center 9

Problems caused by Server Consolidation and Collaboration 1. Microsoft file access performance problems – Folders and file opens, saves are very slow – CIFS over the WAN is very poor combination 2. Increased WAN traffic – Impact to Windows collaboration and customer critical applications (ERP, CRM, Vo. IP, etc) ? 3. Unexpected management overhead 4. Potential risks – From file integrity to business continuity 10

i. Shared WAFS Implementation Overcomes Consolidated Network Performance Issues ■ Addresses file sharing performance problems inherent in CIFS oven the WAN – Windows Common Internet File System – Designed for LANs which have low latency, high bandwidth ■ i. Shared WAFS WAN optimization: – Uses an optimized Transport that reduces “chattiness” of Microsoft CIFS – Leverages TCP acceleration and overcomes “slow-start” for even better WAN performance – Uses unique caching and compression technology to reduce what does need to be sent over the WAN 11

i. Shared Technology: Components of the WAFS Performance Solution ■ ■ ■ WAN-Optimized WAFS Transport File-aware and Application-intelligent Caching TCP Flow Compression Wide-Dictionary Compression TCP Acceleration Incorporates native CIFS technology from Microsoft WAN – Future-proof technology investments – Complete end-to-end security ■ Local Branch Office IT Services 12

i. Shared Performance Impact: WAFS Acceleration Time to open a 5 MB Word file 1 122 seconds Standard Network Share i. Shared: Cold Cache i. Shared Warm Cache 11 seconds 3 seconds Time to save a 6. 7 MB CAD file 2 192 seconds Standard Network Share i. Shared 6 seconds 13

i. Shared Performance Impact: TCP Acceleration 3. 0 for New HTTP 80 seconds Native Protocol i. Shared: Cold Cache i. Shared Warm Cache FTP 11 seconds 8 seconds 179 seconds Native Protocol i. Shared: Cold Cache i. Shared Warm Cache 11 seconds 6 seconds Share. Point 180 seconds Native Protocol i. Shared: Cold Cache i. Shared Warm Cache 25 seconds 16 seconds All testing done on 15 MB files; T 1 (1. 54 Mbps) with 80 ms latency 14

i. Shared Performance Technology: WAN-Optimized WAFS Transport ■ Six different techniques for file acceleration including: – – Data streaming Read-ahead File-aware differencing Clustered I/O ■ Eliminates hundreds / thousands of CIFS and NFS ■ ■ messages going back and forth across the WAN Eliminates redundant data transfer Seamlessly interoperates with industry-standard CIFS and NFS file sharing protocols 15

i. Shared Performance Technology: TCP Acceleration ■ ■ Local acknowledgements to TCP messages Transparent WAN re-transmissions Large window sizes Connection pooling eliminates TCP "slow start" Data Center Remote Office IT local acknowledgements, larger many slow acknowledgements, small payload 16

i. Shared Data Reduction Technology: Caching and Compression ■ File-aware caching – – File Differencing on writes/updates/repeat access Sends only the changes Delivers faster response and improved bandwidth utilization Self-managing cache ensures best performance for frequently accessed data ■ Application-intelligent caching – Extensions for Microsoft Exchange (MAPI attachment caching) – HTTP (static web pages) ■ Dictionary-based Compression – Transmits references to repeated data blocks instead of data – Compression ratios of up to 100: 1 17

Dictionary-based Compression ■ Each end of the link maintains a ‘dictionary’ of datastreams sent and/or seen – New datastreams catalogued in the dictionary with a ‘tag’ assigned ■ Subsequent transfers of a common datastream don’t require the physical data to be transferred Data Center – Only a ‘tag’ telling the receiver where to locate the datastream in the dictionary Tag Sent Tag Rc’d Remote Office IT 1001100110111101001110001101111 011010010100101010011111101111 Datastream requested 1001100110111101001110001101111 011010010100101010011111101111 Datastream delivered 18

i. Shared Branch Office IT Services: SMS, Domain Controller, Print, DNS/DHCP ■ Supports branch office workers – Resolves change in application delivery infrastructure – Provides Print Services to replace local print servers without spooling over the WAN – Allows DNS/DHCP and Domain Controller services without requirement for local servers ■ Provides single point of branch office IT administration – Centralized Management via Web GUI – Optimized SMS software upgrade/patch distribution 19

i. Shared Deployment: Central Management / Transparent Operations ■ Centralized Management – – – – Web-based Configuration Centralized monitoring & logging Device health reporting Pre-population Management Bandwidth Efficiency Graphing Inclusion / Exclusion Lists Bandwidth throttling Appliance software upgrade ■ Transparent Operations – Leverages existing Windows infrastructure investments – Fits natively and seamlessly into the enterprise – Compatible with Microsoft security 20

Distributed Filesystem & Single Instance Storage Cache Ensure Data Integrity & Scalability ■ Distributed filesystem – 100% coherency via lock/lease management – Asynchronous write-back with synchronous logging to RAID disk – Ensures data integrity and survives WAN disruptions ■ Single Instance Storage Caching – Coherent, read/write LRU RAID-backed caching at edge ■ No data “mirroring” required at datacenter – Cache can be pre-populated for frequently used data ■ No need for external agents or applications ■ No additional complexity, management, or point of failure 21

Disaster Recovery and High Availability Features Ensure Business Continuity ■ Site-specific High Availability – Failover Unit mirrored via a private network connection – State and cache automatically and transparently transferred ■ Network-wide Disaster Recovery Support – Remotely connected and synchronized datacenter units – Operation restored transparently to the remote appliances and branch office users if primary datacenter fails – Preserves user performance by leveraging the cached data in the branch office appliances ■ Hardware-based High-availability features – RAID – Redundant power/cooling 22

i. Shared Mobiliti Solution for Mobile or Remote Workers Backup ■ Files & registry to network servers or removable media, large Outlook PST files in seconds ■ Adaptive file-level differencing ■ Automated on system startup/shutdown, real time or scheduled Virtual Network ■ Replicates network environment onto mobile computers ■ Same mapped drives, same network files, same links to network files ■ Delta synchronizes changes and resolves conflicts on reconnection File Synchronization ■ 2 -way delta synchronization between PCs and file servers or between Windows file servers ■ Sophisticated configuration options for automation, conflict management, and network detection 23

What Makes i. Shared Different: Performance, Compliance and Flexibility ■ Performance – Unmatched performance vs. all competition on both reads and writes ■ Enterprise integration with Microsoft – Complete Microsoft compatibility and integration with client and server environments – Microsoft alliance ensures compatibility with key security and protocol schemes today and in the future – Other WAFS solutions break Microsoft Security policies ■ Product configurations include software only option – Leverage purchasing agreements / service contracts with a preferred hardware vendor – Enables additional high-availability options such as hotswappable drives 24

What Makes i. Shared Different: Enterprise Availability and Scalability ■ Data integrity and Business Continuity – Unique file-aware design ensures complete integrity and consistency, even in the event of WAN disruption – File management not present in other WAFS solutions ■ Lock not maintained ■ Risky during saves ■ Scalability – Field proven, 3 rd party certified scalability to hundreds of remotes, and > 500 users per remote appliance – Does not require bloated cache at the Data Center ■ Other WAFS solutions maintain a matching cache for each remote appliance 25

i. Shared Summary ■ Great user experience at every location – Overcome Microsoft file access performance problems and challenges to branches – WAN optimization, TCP acceleration, caching and compression working in concert ■ Minimize impact on the WAN – Reduce WAN traffic ■ Management – Manage centrally – Deal with change in application delivery infrastructure ■ Eliminate risk associated with distributed files and applications – Enterprise-class, well managed storage in the Data Center – Locking and integrity between sites during saves – Business continuity 26

Thank you.