IBM Systems Magazine, Mainframe - March/April 2015 - (Page 48)

ADMINISTRATOR MAKING DB2 ZIP With IBM's zHyperWrite How IBM zHyperWrite improves performance N ew and expanding workloads-including applications running in the cloud and support for analytics, social media and mobile device access to business applications-increasingly demand more from enterprise mainframe systems. They drive the need for improvements in security and the processing demands that requires. These workloads bombard IT systems with requests for information and provide new data to existing business applications. Harry M. Yudenfriend is an IBM Fellow with IBM Systems, Storage I/O Technology. Peter G. Sutton is an IBM Distinguished Engineer with IBM Systems. Calline Sanchez is Storage Systems Development vice president, High End Storage Development with IBM Systems. The corresponding, everincreasing I/O activity is stressing the current IT systems' capability to respond. Mobile users generate additional transactions that flow from systems of engagement to systems of record. Both often reside on the mainframe. At the same time, accelerating database transactions is good for business. Consistently fast transactions yield higher user productivity and greater user satisfaction. IBM's zHyperWrite* storage technology was introduced in the IBM DS8870 storage subsystem for accelerating DB2* transactions on the mainframe when using IBM's HyperSwap* technology. zHyperWrite technology became available in December 2014 with the DS8870 7.4 firmware release and corresponding software exploitation PTFs for z/OS* V2.1 (APARs OA45662, OA45125 and OA44973), and for DB2 10 and DB2 11 (APAR PI25747). zHyperWrite technology speeds the DB2 log writes by eliminating a majority of the time required for the synchronous replication 48 // MARCH/APRIL 2015 Figure 1: Banking Workload Transactional Execution Time WORKLOAD PERCENT OF TIME DB2 server time 5 Lock/latch and page latch 2 to 4 Sync I/O 60 to 65* Dispatcher latency 20 to 25 TCP/IP 4 to 6 *Write to the DB2 log Figure 2: zHyperWrite With DB2 Batch Updates

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe - March/April 2015

Table of Contents
Editor's Desk: Transforming today
IBM Perspective: Move at the speed of z
SHARE Outlook: Celebrating 60 years of people and enterprise computing
TechBits: A mixed bag for cyber security
Partner PoV: Take advantage of data virtualization to boost business intelligence
Trends: Workload-specific open-source solutions offer flexibility for success
Currents: IBM zEnterprise Systems leads in uptime and reliability, ITIC survey finds
R&D: Bluemix makes it easy to build applications securely and quickly in the cloud
IT Today: Is your infrastructure prepared for cloud, analytics, mobile, security and social?
Cover Story: Transforming IBM Systems: Senior VP Tom Rosamilia leads a technology sea change at IBM
Feature: Finding Insightful Information: IBM offers cost-effective solutions to keep mobile analytics on the mainframe
Feature: Propel Your Cloud Infrastructure: Transformational IBM Spectrum Accelerate brings software-defined high-function storage
Tech Showcase: Today's flexible training options fit time and budget constraints
Administrator: How IBM zHyperWrite improves performance
Solutions: Alignia; Intelligent Capping for zEnterprise; MegaCryption 6.4.1; JES2RSS; zOSEM 6.2; SecureData z/Protect 4.3.0; DR/DFI 4.5
Stop Run: An IBM Distinguished Engineer bonds with his family while visiting US historical sites
Reference Point - Global Events, Education, Resources for Mainframe
2015 Mainframe Solutions Edition Product Index

IBM Systems Magazine, Mainframe - March/April 2015