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WebSphere Replication Server for Z/OS Using Q Replication

2006
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Release : 2006
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Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis WebSphere Replication Server for Z/OS Using Q Replication by : Nagraj Alur

Download or read book WebSphere Replication Server for Z/OS Using Q Replication written by Nagraj Alur. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt: This IBM Redbooks publication provides detailed instructions and scripts for managing failover and switchback in a WebSphere Replication Server for z/OS bidirectional Q replication environment for the z/OS platform. A typical business scenario is used to showcase the bidirectional failover/switchback implementation. This book also includes a WebSphere MQ shared disk and WebSphere MQ shared queue high availability scenario for the source system in a Q replication environment involving unidirectional replication. Key considerations in designing and implementing such environments are discussed. This book is aimed at an audience of IT architects and database administrators (DBAs) responsible for developing high-availability solutions on the z/OS platform. Please note that the additional material referenced in the text is not available from IBM.

WebSphere Replication Server for Z/OS Using Q Replication

2006 Distributed databases
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Release : 2006
Genre : Distributed databases
Kind : eBook
Book Rating : 129/5 ( reviews)

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Book Synopsis WebSphere Replication Server for Z/OS Using Q Replication by : Nagraj Alur

Download or read book WebSphere Replication Server for Z/OS Using Q Replication written by Nagraj Alur. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt:

IBM InfoSphere Replication Server and Data Event Publisher

2010-08-18 Computers
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Release : 2010-08-18
Genre : Computers
Kind : eBook
Book Rating : 554/5 ( reviews)

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Book Synopsis IBM InfoSphere Replication Server and Data Event Publisher by : Pav Kumar-Chatterjee

Download or read book IBM InfoSphere Replication Server and Data Event Publisher written by Pav Kumar-Chatterjee. This book was released on 2010-08-18. Available in PDF, EPUB and Kindle. Book excerpt: Design, implement, and monitor a successful Q replication and Event Publishing project with IBM InfoSphere Replication Server and Data Event Publisher using this book and eBook.

Understanding and Using Q Replication for High Availability Solutions on the IBM z/OS Platform

2014-02-11 Computers
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Release : 2014-02-11
Genre : Computers
Kind : eBook
Book Rating : 207/5 ( reviews)

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Book Synopsis Understanding and Using Q Replication for High Availability Solutions on the IBM z/OS Platform by : Cecile Madsen

Download or read book Understanding and Using Q Replication for High Availability Solutions on the IBM z/OS Platform written by Cecile Madsen. This book was released on 2014-02-11. Available in PDF, EPUB and Kindle. Book excerpt: With ever-increasing workloads on production systems from transaction, batch, online query and reporting applications, the challenges of high availability and workload balancing are more important than ever. This IBM® Redbooks® publication provides descriptions and scenarios for high availability solutions using the Q Replication technology of the IBM InfoSphere® Data Replication product on the IBM z/OS® platform. Also included are key considerations for designing, implementing, and managing solutions for the typical business scenarios that rely on Q Replication for their high availability solution. This publication also includes sections on latency analysis, managing Q Replication in the IBM DB2® for z/OS environment, and recovery procedures. These are topics of particular interest to clients who implement the Q Replication solution on the z/OS platform. Q Replication is a high-volume, low-latency replication solution that uses IBM WebSphere® MQ message queues to replicate transactions between source and target databases or subsystems. A major business benefit of the low latency and high throughput solution is timely availability of the data where the data is needed. High availability solutions are implemented to minimize the impact of planned and unplanned disruptions of service to the applications. Disruption of service can be caused by software maintenance and upgrades or by software and hardware outages. As applications' high availability requirements evolve towards continuous availability, that is availability of the data 24 hours a day and 7 days a week, so does the Q Replication solution, to meet these challenges. If you are interested in the Q Replication solution and how it can be used to implement some of the high availability requirements of your business scenarios, this book is for you.

InfoSphere Data Replication for DB2 for z/OS and WebSphere Message Queue for z/OS: Performance Lessons

2012-12-22 Computers
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Release : 2012-12-22
Genre : Computers
Kind : eBook
Book Rating : 952/5 ( reviews)

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Book Synopsis InfoSphere Data Replication for DB2 for z/OS and WebSphere Message Queue for z/OS: Performance Lessons by : Miao Zheng

Download or read book InfoSphere Data Replication for DB2 for z/OS and WebSphere Message Queue for z/OS: Performance Lessons written by Miao Zheng. This book was released on 2012-12-22. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the impact of workload and database characteristics on the performance of both DB2®, MQ, and the replication process is useful for achieving optimal performance.Although existing applications cannot generally be modified, this knowledge is essential for properly tuning MQ and Q Replication and for developing best practices for future application development and database design. It also helps with estimating performance objectives that take these considerations into account. Performance metrics, such as rows per second, are useful but imperfect. How large is a row? It is intuitively, and correctly, obvious that replicating small DB2 rows, such as 100 bytes long, takes fewer resources and is more efficient than replicating DB2 rows that are tens of thousand bytes long. Larger rows create more work in each component of the replication process. The more bytes there are to read from the DB2 log, makes more bytes to transmit over the network and to update in DB2 at the target. Now, how complex is the table definition? Does DB2 have to maintain several unique indexes each time a row is changed in that table? The same argument applies to transaction size: committing each row change to DB2 as opposed to committing, say, every 500 rows also means more work in each component along the replication process. This RedpaperTM reports results and lessons learned from performance testing at the IBM® laboratories, and it provides configuration and tuning recommendations for DB2, Q Replication, and MQ. The application workload and database characteristics studied include transaction size, table schema complexity, and DB2 data type.

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