IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 50

Administrator Getting the most from your systems SSDs Are Integral to Enterprise Storage Infrastructures BY JIM UTSLER T hanks to its use in popular devices such as cell phones, MP3 players and laptop computers, flash memory is quickly becoming a common consumer-storage medium. Many people use small, dedicated flash drives to carry files. Little wonder, then, why companies are curious how flash memory, in one form or another, can fit into their IT infrastructures and benefit their larger, overall business goals. The easy answer might be flash memory is faster than hard-drive disks (HDDs) and can process more transactions with higher I/O throughput. HDDs have been at the center of enterprise storage for around 50 years, and they’re not going away. This is in part because of the relative per GB costs of HDDs versus those of flash-based solid-state disks (SSDs). Although the gap is closing, SSDs still cost more than comparatively sized HDDs. Recent advances in storage technology are making SSDs a viable complement to HDD-based storage conf igurations. This is especially tr ue in hightransaction, small-data environments, where time from query to response has to be faster than that allowed by spinning hard disks. As a result, any higher up-front costs associated with SSDs can be justified by the technology’s unique characteristics, beyond those typically associated with HDDs. A Few Bytes of Data Most enterprises continue to rely on HDD as their pr imar y storage medium. In many cases, it’s a perfectly suitable way for organizations to save, store and access data. “The world’s largest supercomputers, which have very high throughput requirements, actually work with the cheapest, slowest disks you can find,” says Clod Barrera, chief technical strategist of IBM System 50 SEPTEMBER/OCTOBER 2009 Storage*. “They stripe the data across many disks, and in combination, when aggregated together, the performance is very good.” This is fortunate since the need for more storage capacity is increasing. For example, there’s a growing desire to capture data from and serve data to Web clients, including Web 2.0 applications that support social-networking sites. Similarly, the banking industry is seeing an increase in online banking and ATM transactions, which contribute to this growth in storage-capacity needs. Other contributors include an increase in data-object sizes, particularly related to image and video applications; regulatory requirements to retain and maintain data for extended periods of time; and the replication of data for disaster-recovery and business-resiliency purposes. Over the years, HDD manufacturers have been keeping the costs of drives relatively constant while increasing their capacity, using technologies such as Tunnel Magnetoresistive-read heads, bit-patterned media and heat-assisted magnetic recording. These magnetic recording advances promise to extend areal, or surface, densities, and keep HDDs on their declining price curve. Continued development in these technologies indicate ongoing areal-density compound-growth rates from 30 percent to 50 percent, according to Barrera, further pushing down HDD per GB price points. As he explains, “The cost of the drive itself doesn’t go down, but the cost of storage in dollars per gigabyte does.” This allows enterprises to economically deploy many HDDs to increase data-query response times for large data files. When it comes to smaller data files, however, that notion is upended. For example, to find a single record in an HDD environment, many actions must take place, including engaging the appropriate ibmsystemsmag.com/mainframe

IBM Systems Magazine, Mainframe digital edition - September/October 2009

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe digital edition - September/October 2009

IBM Systems Magazine, Mainframe digital edition - September/October 2009
Table of Contents
Editor's Desk: IBM Makes it Easy to be Green
Focus on Storage: System z, DS8000 and Tivoli Provide a Complete Encryption Package
Trends: CICS Transaction Server 4.1 Helps Organizations, Compete, Comply and Control
Case Study: Transzap Consolidates its Oracle Databases in a Virtualized Linux on Mainframe Environment
Cover Story: IBM Poughkeepsie Green Data Center Showcases a Dynamic Infrastructure
Feature: IBM Study Reveals the System z10 Provides a Cheaper, Easier-to-Manage Cloud Solution
Feature: Women in IT Team Up to Succeed
Developer: Process XML Documents Within COBOL and DB2
SSDs Are Integral to Enterprise Storage Infrastructures
Product News
Advertiser Index
Stop Run: Gordon Bruce Talks His Way Into a High-Profile IT Gig
Reference Point
2010 Mainframe Buyer's Guide
COMPANY SHOWCASES: Learn more about some of the companies that develop and sell products for the mainframe
PRODUCT + SERVICE LAUNCHES: Get in-depth descriptions of some products in the guide
SUCCESS STORIES: These real-world examples show how mainframe business partners bring real value to companies
USING THE PRODUCT + SERVICE DIRECTORY: How to navigate the listings
Product + Service Directory: Hardware Listings
Product + Service Directory: Software Listings
Product + Service Directory: Services Listings
Product + Service Directory: Education Listings
INDEXES
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Intro
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - IBM Systems Magazine, Mainframe digital edition - September/October 2009
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Cover2
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 1
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Table of Contents
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 3
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 4
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 5
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 6
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 7
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Editor's Desk: IBM Makes it Easy to be Green
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 9
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Focus on Storage: System z, DS8000 and Tivoli Provide a Complete Encryption Package
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 11
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 12
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 13
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 14
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 15
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Trends: CICS Transaction Server 4.1 Helps Organizations, Compete, Comply and Control
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 17
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 18
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 19
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 20
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 21
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Case Study: Transzap Consolidates its Oracle Databases in a Virtualized Linux on Mainframe Environment
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 23
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 24
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 25
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 26
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 27
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Cover Story: IBM Poughkeepsie Green Data Center Showcases a Dynamic Infrastructure
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 29
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 30
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 31
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 32
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 33
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 34
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 35
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Feature: IBM Study Reveals the System z10 Provides a Cheaper, Easier-to-Manage Cloud Solution
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 37
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 38
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 39
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 40
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 41
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Feature: Women in IT Team Up to Succeed
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 43
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 44
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BRC1
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BRC2
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 45
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Developer: Process XML Documents Within COBOL and DB2
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 47
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 48
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 49
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - SSDs Are Integral to Enterprise Storage Infrastructures
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 51
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 52
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 53
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Product News
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Advertiser Index
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Stop Run: Gordon Bruce Talks His Way Into a High-Profile IT Gig
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Cover3
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Cover4
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Reference Point
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - RF2
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - 2010 Mainframe Buyer's Guide
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BGCover2
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG1
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG2
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG3
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG4
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG5
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - COMPANY SHOWCASES: Learn more about some of the companies that develop and sell products for the mainframe
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG7
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG8
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG9
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG10
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG11
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG12
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG13
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - PRODUCT + SERVICE LAUNCHES: Get in-depth descriptions of some products in the guide
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG15
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - SUCCESS STORIES: These real-world examples show how mainframe business partners bring real value to companies
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG17
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG18
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - USING THE PRODUCT + SERVICE DIRECTORY: How to navigate the listings
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Product + Service Directory: Hardware Listings
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG21
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Product + Service Directory: Software Listings
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG23
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG24
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG25
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG26
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG27
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG28
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG29
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG30
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG31
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG32
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG33
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG34
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG35
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG36
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BG37
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Product + Service Directory: Services Listings
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - Product + Service Directory: Education Listings
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - INDEXES
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BGCover3
IBM Systems Magazine, Mainframe digital edition - September/October 2009 - BGCover4
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