Posted by Trevor Eddolls on Wednesday, November 23, 2011 - 249 views
Zero downtime is a goal that many companies are striving for. It sounds so straighforward, and yet it’s not that simple to achieve – especially when it involves the continuous availability of large, high-volume databases. One of the inherent problems is that data replication for high-availability is filled with many nuances that need to be addressed for a successful deployment, including maintaining sub-second latency, active/active considerations, scalability options, conflict detection/resolution, recovery, exception processing, and verifying that the source/target are synchronized properly.
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Posted by Trevor Eddolls on Saturday, October 22, 2011 - 250 views
The Guide Share Europe (GSE) UK Annual Conference is taking place on 1-2 November at Whittlebury Hall, Whittlebury, Near Towcester, Northamptonshire NN12 8QH, UK.
Sponsors this year include IBM, Computacentre, EMC, Attachmate, Suse, CA, Novell, Compuware, Intellimagic, RSM Partners, Velocity Software, and Zephyr. And there will be 30 vendors in the associated exhibition.
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Posted by Trevor Eddolls on Saturday, June 25, 2011 - 252 views
After years of sliding my security card in the lock and entering the machine room/data centre and seeing the mainframes in there change from Sci-Fi-style boxes with flashing lights to more mundane-looking boxes. From seeing simple DASD with less capacity than the memory stick in this laptop be replaced with cache controllers and more sophisticated data storage devices. It always seemed that there were plenty of mainframes around and any normal person (me) was constantly being offered tours round installations. So it comes as a bit of a shock when a youngster clearly has no idea what a mainframe looks like or what it does!
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Posted by Trevor Eddolls on Sunday, June 19, 2011 - 279 views
IBM celebrating its 100th birthday makes you think you should write its age in Roman numerals – which is what I did in the title. How does a venerable old organization avoid being put out to grass and stay ahead of the business game? How does it become synonymous with cloud computing, smarter planet, and data analytics? I guess the answer is by completely re-inventing itself.
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Posted by Mike on Saturday, April 9, 2011 - 322 views
Exploiting recent hardware enhancements that IBM added into its System z mainframe servers, enterprise software provider BMC has updated its line of performance tuning products to help customers get more from the latest version of the DB2 database.
BMC has upgraded 23 of its mainframe service management applications so that they will support version 10 DB2 databases running on System z9 and z10 mainframe servers, noted Robin Reddick, BMC director of marketing for mainframe service management.
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Posted by Mike on Sunday, February 13, 2011 - 457 views
Now I’m not here to tell you what software to buy and what to ignore, but if you haven’t had a look at IBM’s Transactional Analysis Workbench software yet, I think you should. It’s one of those pieces of software that kind of joins up the dots and allows you to see the bigger picture when you thought there was a performance problem. It can help identify performance issues in one subsystem – CICS, IMS, DB2, MQ, or even z/OS itself – when the symptoms of the problem are appearing in a completely different subsystem.
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Posted by Trevor Eddolls on Sunday, February 6, 2011 - 884 views
It’s so easy to forget, or just take it as read, that mainframes have been able to successfully run with five nines availability for well over a decade. What that means is achieving 99.999 percent of scheduled uptime. In other words, it means that unscheduled downtime is less than five and half minutes in a year! Now that kind of amazing performance is something that boxes running other operating systems can only dream of. Some are working towards that level of availability, but others (you know who I’m thinking of here) aren’t even close.
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Posted by Trevor Eddolls on Sunday, December 12, 2010 - 264 views
On 6 December, CA announced that CA Mainframe Chorus and CA Mainframe Chorus for DB2 Database Management were available. As it’s so close to the Christmas festivities, I thought I’d introduce this blog with a Christmas-cracker-style pun – well, it is that time of year!
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