© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) Module 3.5

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 2 Content Addressed Storage (CAS) Upon completion of this module, you will be able to:  Describe the features and benefits of a CAS based storage strategy.  List the physical and logical elements of CAS.  Describe the storage and retrieval process for CAS data objects.  Describe the best suited operational environments for CAS solutions.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 3 Lesson: CAS Description and Benefits Upon completion of this lesson, you be able to:  Define CAS.  Describe the key attributes of CAS.  List the features and benefits of CAS.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 4 What is Content Addressed Storage (CAS)?  Object-oriented, location-independent approach to data storage.  Repository for the “Objects”.  Access mechanism to interface with repository.  Globally unique identifiers provide access to objects.  Extensible metadata that enables automated data management practices and applications.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 5 What Is Fixed Content? Electronic Documents Contracts, claims, etc. and attachments Financial spread sheets CAD/CAM designs Presentations Digital Records Documents –Checks, securities trades –Historical preservation Photographs –Personal / professional Geophysical –Seismic, astronomic, geographic Digital Assets Retained For Active Reference And Value Leverage Historical Value Improve Service Levels Generate New Revenues Rich Media Medical –X-rays, MRIs, CTI Video –News / media, movies –Security serveillance Audio –Voic –Radio

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 6 Challenges of Storing Fixed Content  A significant amount of newly created information falls into the category of fixed content.  Fixed content is growing at more than 90% annually.  Often, long-term preservation is required (years-decades).  Simultaneous multi-user online access is preferable to offline, or near-line storage.  New requirements and service level agreements have created the need for faster access to records.  Need for location independent data, enabling technology refresh and migration.  New regulations require retention and data protection.  Traditional storage methods are inadequate.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 7 Shortcomings of Traditional Archiving Solutions  Tape is slow, and standards are always changing.  Optical is expensive, and requires vast amounts of media in order to store data of any size.  Both solutions require 3 rd party media management.  Many times companies retire tape products without warning.  Many times recovering files from tape and optical is time consuming.  Data on tape and optical is subject to media degradation.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 8 Benefits of CAS  Immutability and authentication  Location independence  Single instance storage  Faster record retrieval  Record-level retention, protection, and disposition  Technology independence  Online (like Disk)  Optimized TCO  Scalability

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 9 Lesson: Summary Key points covered in this lesson:  CAS Definition  CAS Description  Benefits

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 10 Lesson: Elements of CAS Upon completion of this lesson, you will be able to:  Describe the Physical Elements of CAS.  Describe the Logical Elements of CAS.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 11  Storage devices (CAS Based)  Servers (to which storage devices get connected)  Client Physical Elements of CAS API ServerClient CAS-based Storage

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 12 Logical Elements of CAS  The Logical Elements of CAS include the Object-Level Access Protocols. CAS API Metadata 39HLTTT2H0404EU6M4A9MUR7TE4 Content Address

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 13 Lesson Summary Key points covered in this lesson:  Physical Elements of CAS  Logical Elements of CAS

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 14 Lesson: Data Object Storage and Retrieval Upon completion of this lesson, you will be able to:  Describe how data gets stored in a CAS environment.  Describe how data is retrieved from a CAS environment.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 15 How CAS Stores a Data Object API Application Server Client CAS Object ID Client presents data to API to be archived 1 Unique Content Address is calculated 2 Object is sent to CAS via CAS API over IP 3 CAS authenticates the Content Address and stores the object 4 Acknowledgement returned to application 5 Object-ID is retained and stored for future use 6

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 16 How CAS Retrieves a Data Object Application Server Client CAS Object is needed by an application 1 CAS authenticates the request and delivers the object 4 Application finds Content Address of object to be retrieved 2 Retrieval request is sent to the CAS via CAS API over IP 3 API Object ID

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 17 Lesson: Summary Key points covered in this lesson:  How data gets stored in a CAS environment.  How data is retrieved from a CAS environment.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 18 CAS Healthcare example, Radiology PACS Solutions Acquisition Station Procedure room Image Review and Analysis on Multiple Workstations Viewing room Onsite office Surgical suite Offsite Images acquired and moved Short-term Online Image Cache Most recent studies accessible in milliseconds Long-term Online Image Archive Entire patient history accessible in seconds

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 19 Financial Example: CAS Solution Check images maintained in tier 1 storage for 60 days then migrated via HSM to “active archive”

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 20 Module Summary Key points covered in this module:  Benefits of CAS based storage strategy.  Overview of physical and logical elements of CAS.  Storing and retrieving data from CAS.  CAS application examples.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 21 Check Your Knowledge  What are the key features of a CAS implementation?  What are the benefits of a CAS Storage Strategy?  What are 3 business applications that would benefit from CAS technology?  What are the logical elements of a CAS system?  How does data get stored in a CAS environment?

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 22 Apply Your Knowledge  After completing this topic, you should be able to describe the features of a Centera CAS solution.

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 23 Effective Information Archive Must Address… Business  Cost  Access  Availability  Compliance IT  Backups  Consolidation  Disaster recovery  Ease of management  Compliance  Scalability  Focus needs to stay on transactional information Secure Simple Affordable

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 24  Protect information at an object level  Safeguard access  Enforce retention and disposition intrinsically in storage layer  Address business continuity and disaster recovery  Provide online access and assured authenticity  Work with any application or any platform  Self-manage and self-heal  Be future-proof  Avoid archiving multiple copies of the same information  Consolidate information silos into a unified archive  Manage rapid growth in information without matching costs  Provide the best overall total cost of ownership Requirements for an Effective Information Archive Secure Simple Affordable

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 25 Centera  Purpose-built for information archiving  More than 1,200 customers  400+ partners—works with any application from virtually any platform  More than 30 PB shipped EMC Centera Centera 4-Node for departmental use and midsize enterprises The World’s Most Simple, Affordable, and Secure Repository for Information Archiving Secure Simple Affordable

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 26 Universal Access Makes Archiving Easy and… Centera Anywhere, any time, any application, from virtually any platform Centera API NFS CIFSFTP HTTP Emulation Simple

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 27 Centera Nodes Disk Drives Processor Card Power Supply Cooling Tunnel

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 28 Content Mirroring Self-managed private LAN Storage nodes Network switch Switch Power rails / ATS Simple ‘       ‘  

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 29 Self-Healing Storage nodes   ‘‘ Power rails / ATS ‘     Self-managed private LAN Network switch Switch Simple

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 30 Self-Healing Storage nodes   ‘‘ Power rails / ATS ‘      ‘ Self-managed private LAN Network switch Switch Simple

© 2006 EMC Corporation. All rights reserved. Content Addressed Storage (CAS) - 31 Self-Managing and Configuring No complex storage-area networking management No filesystem management No LUN / RAID Group carving or allocation A “black box” configuration Simple