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David t's Blog Posts Tagged 'high availability' (7)

High Availability for DB2 DPF

DB2 LUW partitioned databases haven't been called DPF, the Database Partitioning Feature, since 2007.  However, a lot of people still use the term.  That's not a bad thing, but they tend to search…

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Added by david t on August 29, 2011 at 2:06pm — No Comments

Building Time-Delayed Targets with Data Replication

 

Most replication products talk a lot about how great high-speed data replication is.  Naturally, I agree :)  It's great. However, if something ever corrupts your source data, you'll likely see an ugly side of speed - your target gets all the source's corrupt data with sub-second latency.  What a pain.  You have no time to prevent the mirrored corruption. That might leave both source and target unusable. And that's especially frustrating if your target is supposed to be a…

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Added by david t on August 10, 2011 at 10:30pm — No Comments

IBM's New Active-Active Solution for DB2 and IMS on z/OS

IBM has a new availability solution, GDPS active-active continuous availability (GDPS/A-A), that offers an unlimited distance between data centers, cross-site workload monitoring, automated workload balancing, and recovery time objectives measured in seconds.  I have a few highlights here.  Full details can be found in…

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Added by david t on May 24, 2011 at 6:00pm — No Comments

pureScale, Q Replication, and Active-Active Databases

IBM has an excellent new white paper on developerWorks about using Q Replication for active-active databases with DB2 pureScale.  It covers everything from basic terminology and set up to why WebSphere MQ adds value to active-active replication.  I like this paper for two reasons.  First, it's the most complete documentation IBM has for using Q Replication with DB2 puresScale. …

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Added by david t on May 11, 2011 at 6:00pm — No Comments

2010's 10 Most Popular Data Replication Topics for DB2

These are the ten topics that I felt were the most popular with the sales teams and customers I worked with in 2010. As with last year's list, this year's based solely on my own experience. No way I'm going to try to reconcile my colleagues' opinions and come up with a composite list :)  There are just too many opinions around for that.  I'll stick with mine, start at the top, and work…

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Added by david t on January 8, 2011 at 1:00am — No Comments

Disaster Recovery, High Availability, and Continuous Availability - What's the Difference?

Last month I posted a video that gave a brief overview of how data replication is used for continuous availability. I then got ask why I used the term continuous availability instead of high availability or disaster recovery. "What's the difference?" Well, while these solutions have a lot of overlap and can usually be built from some of the same components, they can have different objectives. Different objects can…
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Added by david t on September 7, 2010 at 12:30am — 1 Comment

2009's 10 Most Popular Replication Features for DB2

While preparing for what's likely to be coming my way in 2010, I thought about the topics I spent the most time on in 2009. I eventually wound up with a list of 10 that I felt were the most popular with the sales teams and customers I worked with. I thought I had a pretty good list :) so I emailed it to my collegues to get their impression. Naturally, everyone had at least a slightly different list and, when there was overlap, everyone wanted a slightly different order. Go… Continue

Added by david t on January 17, 2010 at 10:00pm — No Comments

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