Now that many sites are migrating to DB2 V8 performance topics related to this new version are gaining popularity. Although there have been a large number of improvements made to DB2 in terms of scalability, application porting, security, and continuous availability, there are also some things you'll need to prepare your systems for.Luckily, IBM has just updated its very useful redbook titled DB2 UDB for z/OS Version 8 Performance Topics (SG24-6465). This redbook was initially published in April 2005, but was updated with new V8 performance information...
Sunday, 26 February 2006
Monday, 20 February 2006
Can You Write a Redbook?
Posted on 08:08 by Unknown
If you've been working with mainframes for any period of time you have almost certainly become familiar with the IBM redbook. These are supplemental manuals that IBM writes and distributes free-of-charge. They can be on just about any technical topic.Well, when I said IBM writes them, I should have been more clear. IBM guides the writing of them and solicits its customers to help out. It does this via residencies. A residency is an intensive, multi-week work effort where small teams explore and document product implementation, integration and operations....
Wednesday, 15 February 2006
VSAM Demystified
Posted on 14:27 by Unknown
VSAM is used "under the covers" of every DB2 page set. VSAM is also used as the storage mechanism by some IMS databases. It is also used to store a lot of mainframe data outside the control of any DBMS. But there is a lot of confusion about what exactly VSAM is, how it can be used, and how it differs from a DBMS.I wrote an article for IDUG Solutions Journal titled On VSAM and DB2 that offers some high-level details on the differences between the two. But if you are looking for a great, in-depth publication on VSAM there is a great redbook you...
Friday, 10 February 2006
Evaluating DB2 Tool Vendors
Posted on 21:14 by Unknown
Although the most important aspect of DB2 tool selection is functionality and the way it satisfies your organization’s needs, the nature and stability of the vendor that provides the product is also important. So, of course, you will need to be sure that the tool you are evaluating meets your functional specifications. And in this day and age you should really do the investigative work required to find out the real level of support for DB2 V8 that is in the GA version of the tool. Most vendors have implemented V8 in stages, so be sure the features...
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