IBM LTO products: a guide for the midmarket whitepaper
Upcoming SlideShare
Loading in...5
×

Like this? Share it with your network

Share
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
358
On Slideshare
358
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
3
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. IBM Systems and Technology GroupSeptember 2009 IBM LTO products: a guide for the midmarket
  • 2. IBM LTO products: a guide for the midmarketPage 2 Introduction Contents While disk storage has evolved greatly over the years, tape continues to be an integral part of the storage hierarchy. For example, IBM studies show that our 2 Introduction clients store from four to 15 times more data on tape than disk. The reasons 3 What are the benefits of LTO in provide substantiation for why tape storage is so popular. Compared to disk general and IBM LTO in particular? storage, tape is: 5 The IBM difference 9 IBM, LTO and the midmarket • Cost-effective 11 IBM financing for your midmarket • Uses less energy needs • Is removable and portable 12 Overview of IBM LTO tape storage • Can hold high volumes of data products • Has a long life, and 18 Environmental considerations • Is ideally suited for information availability, retention, security and compliance 20 Why IBM storage solutions? Faced with an information explosion that means the need for more and affordable 21 Conclusion storage, IT managers, trying to optimize space, storage and people can find IBM 21 For more information tape storage the solution to many of your problems. The following information will help you understand the advantages of choosing IBM as your vendor for Linear Tape-Open (LTO) storage products.
  • 3. IBM LTO products: a guide for the midmarketPage 3 What are the benefits of LTO in general and IBM LTO in particular? IBM LTO technology has evolved through four generations, with two more planned. LTO is an open tape architecture developed by a consortium of three world-class storage producers, including IBM.. LTO solutions have many advantages over other types of storage. For example, LTO provides highly scalable tape backup that accommodates a wide range of system formats. It easily integrates into current operating environments, and our roadmap protects your investment today and in the future. The LTO Ultrium format offers exceptional investment protection. As a truly open tape solution, the Ultrium format has gained widespread industry acceptance from leading tape drive, media, and automation companies. Simplified product planning means faster cycle time for new features IBM offers a complete family of solutions comprising tape drives and small- medium- and large tape automation solutions that use the Ultrium ultra- high-capacity recording format. This family delivers exceptional performance, widespread availability, and a lower-price data storage solution: • High reliability levels. When you entrust your data to a storage medium, you want the very highest levels of reliability. For more than 55 years — longer than any other major storage vendor — IBM has been leading the way in tape storage technology • High capacity. Up to 1.6 TB compressed or 800 GB of native capacity data can fit on a single compact cartridge • High data transfer rate. Sustained data transfer rates of up to 120 MB/second are supported in the IBM LTO 4 generation
  • 4. IBM LTO products: a guide for the midmarketPage 4 Our LTO Ultrium solutions are designed to grow with your needs, across platforms and operating systems, and in fact, IBM has invented much of today’s most advanced storage technology Did you know that: • IBM introduced the first tape drive in 1952 and the first disk drive in 1956. The IBM LTO-based Ultrium format tape drives are simply the latest IBM storage developments to leverage this unparalleled track record of innovation and expertise. • The IBM Ultrium format technology leverages earlier IBM innovations as building blocks for enhancement. • The dramatic increases in linear and track density, and the use of multi- track, linear-serpentine recording are natural extensions of existing IBM tape technologies. • The enhancements in tape track and magneto-resistive (MR) head technology leverage the high number of concurrent channels and track density characteristics of the LTO specifications. • The error correction code (ECC) used in the IBM Ultrium tape products is powerful enough to ensure reliable recovery of data even with the loss of a track or head. The high efficiency ECC is based on the same architecture as existing IBM tape technologies • When you choose IBM, you have immediate access to an end-to-end solution whatever the requirement. From individual tape drives to ultra-scalable libraries to disk, IBM has a solution for your needs.
  • 5. IBM LTO products: a guide for the midmarketPage 5 The IBM difference IBM has superior quality and reliability specifications for its media, drives and automation. For example, “IBM LTO-4 media specifications go well beyond standard LTO specifications. Here are some examples of the quality and reliability that we build into our products. IBM media is built to rigorous IBM specifications IBM media undergoes far more testing than any other tape media, even non-IBM branded media manufactured in the same plant. • As an example, IBM Media undergoes Environmental Durability Tests at all “ five corners” of the temperature and humidity extremes. It is our belief that only IBM puts media through its entire life cycle (300 complete full file passes*) at each point (Warm/Wet, Hot/Wet, Hot/Dry, Cold/Dry and Cold/Wet). Many other vendors may take cartridge samples through each extreme point, but may not put the cartridge through its entire life cycle at each data point. • Commonality of Format does not imply commoditization. LTO Consortium Certification is not a statement of quality. Certification only promises interchangeability and capacity specification at a minimum quality. IBM has superior quality and reliability specifications for its media, drives and automation. For example, IBM LTO4 media specifications go well beyond standard LTO specifications by ensuring that the media will be capable of adhering to and be covered by warranty to the following specifications: – 300 full file passes – 1 million head passes – 20,000 short section durability passes at all environments – 20,000 load/unload cycles
  • 6. IBM LTO products: a guide for the midmarketPage 6 (Note: Full File Pass is a process that fills an entire tape. A full file pass of an IBM LTO4 cartridge requires sixteen tracks to be written from one end of tape to the other and repeating this process 56 times to completely fill the 800 GB cartridge. Other vendors may consider a full file pass to be simply one “round trip” from beginning of tape to end of tape and back. There are 28 “round trips” in a full file pass. • IBM Media is used as the Master Standard Reference Tape at the Measurement Assurance Corporation, the third party that performs compliance testing for the LTO consortium. The Master Standard Reference Tape is the tape media that all other vendors are compared against. Being chosen as the MSRT is an indication of predictability and consistency from cartridge to cartridge so that the standard does not change. IBM has been the MSRT supplier for all four LTO generations. • IBM has the most extensive suite of stress tests built over years of tape media development for stress testing media in real and extreme customer environments. While the content of this test suite is proprietary, the history and experience we have in continuing to develop our testing methods means we have discovered how to solve problems that other vendors haven’t even discovered are problems.
  • 7. IBM LTO products: a guide for the midmarketPage 7 IBM Media is designed for increased reliability, performance, stability and durability • The IBM LTO cartridge uses an ultra-thin dual coating system which provides increased durability and stability. Ensuring an ultra-thin magnetic layer is critical to the life of a cartridge, as the higher areal density media requires a very low background signal noise to ensure that data, once written, will not become altered due to signal-to-noise loss. This Dual Coat Process was developed by our media manufacturing partner Fujifilm, and this thin magnetic coat, as a result, delivers long shelf life and durability. • The IBM LTO cartridge has LTO CM (cartridge memory) chip. During the media (unload/load) cycles, the CM 8KB memory chip uses a radio frequency interface that eliminates any need for a physical power or signal connection between the cartridge and the drive. It holds information about data location, usage/error logs, and user areas. It provides a quick reference to the cartridge’s index and usage information, facilitates problem diagnosis and helps with failure prediction, minimizes load time, and provides fast access to and high-speed restoration from files and data sets regardless of their location on the tape cartridge. • Includes improved PEN substrate which is very stable under changing environmental conditions • Uses dual servo tracks for extremely fine placement control and redundancy in the event of tape damage • Uses advanced slitting technology • Results in maximum edge quality, ensuring superior reliability, enhanced performance and reduced debris
  • 8. IBM LTO products: a guide for the midmarketPage 8 IBM Drives and IBM Media are designed and developed together One cannot overstate the significance in building a cartridge to work with a particular drive, or a drive with a particular cartridge. And, IBM drives are found in tape libraries from SUN (STK), Dell, ADIC and many others. • IBM LTO Tape drives employ specific patented technologies, which further enhance the capabilities of IBM’s LTO media when used together: – Patented Magneto Resistive flat lapped head design – Helps reduce tape wear by decreasing the tape to head contact found in typical tape drives. IBM LTO tape is kept in place with minimal friction using normal air pressure to keep the tape in proper contact with the head read and writes elements. This head design helps improve performance, accuracy and reliability of reads and writes and helps to reduce tape media and drive head wear. – Patented surface control guiding system – Allows for less debris generation and increased performance. The flat lapped heads and surface control guidance system help contribute to overall high data integrity in the IBM LTO tape drives. – Grooved Roller Surface Control Guiding – Helps to stabilize the lateral movement of tape across the head, reducing the amount of re-reads or writes that might occur if the tape path weren’t so stable. The two inner most rollers are actually grooved, which causes air to “bleed-out” from underneath the surface of the tape, allowing more precise guiding of the tape without having to rely upon edge guiding like done on many other systems.
  • 9. IBM LTO products: a guide for the midmarketPage 9 IBM, LTO and the midmarket With smaller, more agile rivals on one side and larger, more powerful ones on the other, medium companies such as yours must respond rapidly in a changing, competitive environment. Current market data shows that medium businesses face an array of challenges specific to their unique position in the marketplace. Security issues, for example, remain a top priority, while the need for real-world business intelligence has become a top driver of new technology implementation. Companies must ensure product and services differentiation to compete in an ever-changing marketplace and be nimble enough to adapt to those changes. Other market trends shaping the business landscape, such as information on demand or virtualization solutions, are also on the medium company’s radar — although many businesses lack the resources to move in those directions on their own. Medium-sized companies need to compete at the highest level, maintain business models and support systems flexible enough to prioritize and capture the most valuable opportunities — and do all this with fewer resources than larger enterprises. Also, organizations worldwide are required by law to store, manage and safeguard more of their data than even before. Meeting these goals requires some creativity and the right technology partner. More than ever, medium companies are recognizing the advantage of technology solutions to help them win in the marketplace.
  • 10. IBM LTO products: a guide for the midmarketPage 10 IBM has renewed its commitment to addressing the needs of midsize businesses (those with 100 to 1000 employees). We know that factors such as simplicity, scalability and cost are critical considerations for smaller enterprises. That’s why IBM offerings for midsize business conform to a set of strict requirements that helps ensure usability, easy acquisition and implementation, flexibility and faster return on investment. For the majority of midsize businesses, the term “enterprise IT” brings to mind two words: expensive and complex. But IBM LTO solutions for midsize businesses are geared to ensuring that companies like yours can have all the power, performance, security and reliability they need with a variety of products that help meet data back up and restore needs — at an affordable cost, and with plenty of room to grow. IBM has a complete portfolio of solutions for midsize businesses that include hardware, software, middleware, services and financing options.
  • 11. IBM LTO products: a guide for the midmarketPage 11 IBM financing for your midmarket needs Highlights IBM Global Financing, the lending and leasing business segment of IBM, has designed financing options that can help clients in the midmarket defer upfront Did you know? The tale of the tape investment costs for IBM hardware, software and services, thereby conserving IBM tape storage has many reasons for cash for other more pressing business priorities. IBM Financing Advantage usage, whether in general or specific offers fast and simple financing at competitive rates, with simplified Web-based to LTO. What makes LTO the right fit processes to deliver credit, price and contracts in less than one hour. and the ideal fit is listed here: For more information about IBM Global Financing’s offering for financing the Energy consumption technology needs of midsize companies, visit IBM’s medium business financing A study of a midsize business storage solutions site. scenario found that a disk system can cost 290 times more in power and cooling than a tape system.1 As a rule, tape drives and libraries consume far less energy than disk drives and bays, and tape cartridges require no energy at all when stored.
  • 12. IBM LTO products: a guide for the midmarketPage 12 Overview of IBM LTO tape storage products Highlights The following are descriptions of LTO Ultrium tape drives, libraries and autoloaders in our LTO portfolio. Price IBM System Storage TS2240 Tape Drive Express Model A study of a midsize business storage scenario found that a disk system The IBM System Storage TS2240 Tape Drive Express Model is an external could cost 23 times more in total cost drive incorporating the fourth generation of IBM LTO technology in a half-high than a tape system. 2 Hardware, energy form factor. This is an external stand-alone or rack-mountable unit, similar to consumption and floor space are previous models of the TS2230 and is the entry point for the IBM Ultrium tape typically lower with tape. product family. The TS2240 supports encryption of data with a 3 Gbps SAS connection. In addition, the TS2240 can read and write LTO Ultrium 3 Data The low cost per GB of tape storage is Cartridges and read LTO Ultrium 2 Data Cartridges. The TS2240 Tape Drive approximately four cents per GB for an provides an excellent migration path from digital linear tape (DLT or SDLT), LTO-4 cartridge,3 and that facilitates 1/4-in., 4 mm, or 8 mm tape drives. keeping multiple copies of the data for backup, recovery and archiving Cartridge capacity 800 GB native physical capacity purposes. Interface 3 Gbps SAS Max. drive data rate Up to 120 MB/sec native Removable disk cartridges cost approximately $1.45 per GB 4 Automated tape and virtual tape IBM System Storage TS2340 Tape Drive Express Model libraries with advanced backup and The IBM System Storage TS2340 Tape Drive Express Model is an external archive management software reduce drive incorporating the fourth generation of IBM LTO™ technology in a full high or eliminate the need for IT staff, form factor. This is an external stand-alone or rack-mountable unit, similar to allowing “people costs” required for previous models of the IBM 3580 and is the entry point for the IBM Ultrium managing and maintaining disk- or tape product family. The TS2340 supports encryption of data and offers a 3 Gbps tape-based data protection solutions SAS connection. In addition, the TS2340 can read and write LTO Ultrium 3 to be roughly the same.5 Data Cartridges and read LTO Ultrium 2 Data Cartridges. Cartridge capacity 800 GB native physical capacity Interface LVD SCSI, 3 Gbps SAS Max. drive data rate Up to 120 MB/sec native
  • 13. IBM LTO products: a guide for the midmarketPage 13 IBM System Storage TS2900 Tape Autoloader Highlights The IBM System Storage TS2900 Tape Autoloader is a single-drive, low profile automated tape solution and the first entry automation solution for small- to mid- Security market tape environments. The TS2900 leverages the technology of IBM half- Encryption of data can safeguard high LTO tape drives to help create a high-capacity tape storage solution suited information unwittingly lost or for handling backup and archival data storage for the Windows®, Linux and physically stolen. IBM tape drive other open system environments. encryption is included in LTO generation 4 at no additional cost. Number of Drives 1 IBM tape drive encryption was first to Maximum Number of Cartridges 9 market and it has been securing Maximum System Capacity 7.2 TB Native; 14.4 TB with 2:1 customer’s information on tape (2:1 Compression) compression since 2007. Supported Platforms IBM Power™ Systems, IBM System x™, Intel® and other The impact of hardware encryption on open systems server platforms. tape LTO drive performance is expected to be typically less than one percent.6
  • 14. IBM LTO products: a guide for the midmarketPage 14 IBM System Storage TS3100 Tape Library Express Model Highlights The IBM TS3100 Tape Library Express Model is well–suited for handling backup, save and restore and archival data–storage needs for small to medium– Reliability size environments. With one Ultrium Full-High or up to two Ultrium Half–High Disaster recovery best practices tape drives and 24 tape cartridge capacity, the IBM TS3100 model is designed dictates that a copy of data be stored to leverage LTO technology to help cost-effectively handle growing storage at an offsite location.7 Tape is both requirements. removable and transportable for offsite storage. • Designed to support cost-effective backup, save and restore and archival storage in sequential or random access mode with a standard bar-code reader LTO drives are specified with a Mean- • IBM Ultrium 4 technology is designed to support encryption of data with 3 Gbps SAS and continues to support write-once, read-many (WORM) operations Time-Between-Failure rate (MTBF) of 250,000 hours at 100% duty cycle. This • Designed to offer outstanding capacity, performance and reliability for midrange and network tape–storage environments in a 2U form factor with 24 data metric is 700 percent more than the cartridge slots and a mail slot MTBF of tape technologies created a decade ago. * • Remote library management through a standard Web interface supports flexibility and greater administrative control of storage operations The latest LTO-4 Ultrium tape drives announced in early 2007 hold eight Number of Drives 1 Full High or times the capacity of the first LTO tape 1-2 Half High drive launched in 2000: up to 1.6TBs of Maximum Number of Cartridges 24 compressed data, IBM has 38.4 TB Maximum System Capacity successfully tested and projected to (2:1 Compression) enable the eight-terabyte (TB) tape Supported Platforms IBM System p™, IBM System i™, cartridge of the future. Eight TBs of IBM System x™ and other open data is equivalent to the text in eight systems million books, which would require 57 miles of bookshelves. All in a single cartridge! Capacities are a result of lab tests and are subject to change. *
  • 15. IBM LTO products: a guide for the midmarketPage 15 IBM System Storage TS3200 Tape Library Express Model The IBM System Storage TS3200 Tape Library Express Model is designed for backup, save and restore, and archival data-storage needs for small to medium-size environments. The TS3200 is an external 4U standalone or rack-mountable unit that incorporates up to two Full High Ultrium 4 or Ultrium 3 tape drives or up to four Half High Ultrium 4 or Ultrium 3 tape drives and 48 tape cartridge slots. • Designed to support cost-effective backup, save and restore and archival storage in sequential or random access mode with a standard bar code reader • IBM Ultrium 4 technology is designed to support encryption of data with 3 Gbps SAS and continues to support WORM operations • Designed to offer outstanding capacity, performance and reliability for midrange and network tape-storage environments in a 4U form factor with 48 data cartridge slots and a mail slot • Remote library management through a standard Web interface supports flexibility and greater administrative control of storage operations Number of Drives Up to 2 Full High tape drives Up to 4 Half High tape drives Maximum Number of Cartridges 48 data cartridges Maximum System Capacity 76.8 TB compressed, Up to 38.4 (2:1 Compression) TB native Supported Platforms System i™, System p™, System x™, System z™, HP, Sun, UNIX® and Windows® servers
  • 16. IBM LTO products: a guide for the midmarketPage 16 IBM System Storage TS3310 Tape Library The IBM System Storage TS3310 Tape Library is a modular, scalable tape library designed to address the tape storage needs of rapidly growing companies who find themselves space and resource constrained with tape backup and other tape applications. Designed around a 5U high modular base library unit, the TS3310 is designed to scale vertically with expansion for LTO tape cartridges, drives and redundant power supplies. The base library module, model L5B, is the entry point for the product family. It contains all of the necessary robotics and intelligence to manage the 5U high library system, which houses up to 41 cartridges (35 storage slots and 6 Input/ Output slots) and two LTO generation 4 and/or generation 3 tape drives. The TS3310 model L5B can be expanded with the addition of expansion units, the model E9U. Number of Drives Up to 18 (max 2 drives for the base Model L5B library and 4 drives in each expansion unit Model E9U) Maximum Number of Base Model L5B: 35 storage and 6 Cartridges I/O. Expansion module, Model E9U: 92 storage or 80 storage and 12 I/O Maximum System Capacity Over 644.8 TB in a 41U configuration (2:1 Compression) or 56 TB in a Model L5B base library Supported Platforms OS/400® V5R2, V5R3, or later; AIX 5L™ V5.1, V5.2, V5.3, or later; Sun Solaris 8 and 9; Microsoft® Windows® 2000; Microsoft Windows 2003; HP- UX 11.0, HP-UX 11.11 and HP-UX 11.232; Linux distributions: Red Hat Enterprise Linux version 4; SUSE Linux Enterprise Server 9
  • 17. IBM LTO products: a guide for the midmarketPage 17 IBM System Storage TS3500 Tape Library The IBM System Storage TS3500 Tape Library (TS3500 tape library) combines IBM automation and drive technology to provide a highly scalable, automated tape library for IBM System z and open systems backup and archive in midrange to enterprise environments. Number of Drives 12 per frame (192 per library) Maximum Number of Cartridges 20,087 LTO, Maximum System Capacity 32.1 PB LTO at 2:1 (2:1 Compression) compression, Supported Platforms IBM AIX®; IBM OS/400®; IBM i; Windows® 2000; Windows Server® 2003; Linux; Sun Solaris; and HP-UX. IBM z/ OS® (only with 3592 drives and additional hardware)
  • 18. IBM LTO products: a guide for the midmarketPage 18 Environmental considerations IBM is committed to environmental leadership in all of its business activities, from its operations to the design of its products and use of its technology. IBM’s corporate policy on environmental affairs, first issued in 1971, is supported by the company’s global environmental management system. This is a key element of IBM efforts to achieve results consistent with environmental leadership and ensures that the company is vigilant in protecting the environment across all of its operations worldwide. Here are some examples of IBM “green” efforts and recognition for them: • Recently, IBM was named the top company for climate change strategy and practices in a report released by the Ceres investor coalition. The report analyzed climate change governance practices at 63 of the world’s largest retail, pharmaceutical, technology, apparel and other consumer-facing companies. • Between 1990 and 2007, IBM saved 4.6 billion kWh of electricity consumption, avoided nearly 3.1 million metric tons of CO2 emissions (equal to 45 percent of the company’s 1990 global CO2 emissions) and saved over $310 million through its annual energy conservation actions alone. • IBM’s procurement of renewable energy and RECs increased from 11 million kWh in 2001 to 455 million kWh in 2007, which accounted for 8.5% of IBM’s total 2007 global electricity purchases. • To further extend these achievements IBM set a “second generation” goal to reduce CO2 emissions associated with IBM’s energy use by 12 percent between 2005 and 2012 through energy conservation, use of renewable energy and funding RECs.
  • 19. IBM LTO products: a guide for the midmarketPage 19 IBM can help midsize organizations become more environmentally friendly with a suite of offerings called Green IT solutions. These solutions, designed for midmarket businesses, will help our clients to: • Reduce operational and energy costs • Make their IT environments more energy-efficient • Control and manage their power consumption and usage • Dispose of old, unwanted IT assets in an environmentally friendly manner. For more information on environmental management at IBM, go to ibm.com/ ibm/environment/. For more information on IBM’s energy and environmental solutions for a smarter planet, see ibm.com/ibm/green/index.shtml
  • 20. IBM LTO products: a guide for the midmarketPage 20 Why IBM storage solutions? IBM Storage solutions provide the capabilities needed to help organizations reduce cost and mitigate risks while managing continued information growth and service level demands. Dynamic environments, such as Cloud Computing and Service Oriented Architecture, require scalable, always on information services delivered by a robust information infrastructure foundation. Storage is as important to a dynamic infrastructure as servers and networks. Because of the explosion of information in most data centers, storage can be more challenging to tame than server resources, but the payoff can be worth the effort. IBM Information Infrastructure solutions can play a critical role in projects impacting resiliency, security, energy efficiency, virtualization, asset management, and service management. IBM Information Infrastructure is an initiative that helps clients meet the challenges of today’s information explosion by helping to improve competencies in four critical areas: • Information availability • Information security • Information retention • Information compliance IBM Information Infrastructure and System Storage solutions can help you manage information growth more effectively, dramatically improve service levels, lower costs, mitigate risks, and extract new intelligence for business insight.
  • 21. IBM LTO products: a guide for the midmarketPage 21 Conclusion This white paper has examined the reasons that make IBM a top vendor of LTO storage products. IBM offers superior quality and reliability specifications for its media, drives and automation — IBM media is used as the Master Standard Reference Tape in the industry. Finally, IBM uses an extensive suite of stress tests built in over 55 years of tape media development. As a result, our products offer performance and reliability that stand the test of time. For more information To learn more about IBM LTO tape storage products, please contact your IBM marketing representative or IBM Business Partner, or visit the following Web sites: ibm.com/systems/storage/tape/index.html ibm.com/systems/storage/resource/pguide/index.html ibm.com/partnerworld/pwhome.nsf/weblook/mkt_bpic_innovation_centers.html
  • 22. © Copyright IBM Corporation 2009 IBM Corporation New Orchard Road Armonk, NY 10564 U.S.A. Produced in the United States of America September 2009 All Rights Reserved IBM, the IBM logo, ibm.com AIX, WebSphere and z/OS are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. If these and other IBM trademarked terms are marked on their first occurrence in this information with a trademark symbol (® or ™), these symbols indicate U.S. registered or common law trademarks owned by IBM at the time this information was published. Such trademarks may also be registered or common law trademarks in other countries. A current list of IBM trademarks is available on the Web at “Copyright and trademark information” at ibm.com/legal/ copytrade.shtml Other product, company or service names may be trademarks or service marks of others. 1 The Clipper Group, Inc., “Disk and Tape Square Off Again,” February 13, 2008. 2 Ibid. 3 Based on current average internet purchase price (May 2009), of a single LTO-4 cartridge holding up to 1.6TBs with 2:1 data compression. 4 “Disk and Tape Square Off Again.” 5 SYLVATICA, “The Best Practices for backup and long- term data retention”, 2009. 6 IDEAS Comp, “Accelerating Performance and Expand- ing Tape’s Role for Lower TCO”, August 2007. 7 “The Best Practices for backup and long-term data retention”, 2009. * Sylvatica white paper, “The evolving role of disk and tape in the data center: Best Practices for backup and long-term data retention,” by Debbie Beech. July 2009. SGW01068-USEN-00