VSAM Application Performance and Tuning Courses and other IT courses from TEKsystems Education Services

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Course Code:	MV 102
Course Abstract:	This course covers VSAM performance and tuning techniques. Topics include; the 3 types of VSAM file KSDS, RRDS, ESDS, buffer allocations and considerations for faster access to VSAM data sets, options for data placement and index positioning and maintaining a VSAM data set based on its historical usage and performance.
Audience:	This course is designed for data processing personnel involved with the development and/or maintenance of systems using the virtual storage access method (VSAM).
Duration:	4 days
Learning Outcomes:	Upon completion of this course, the participant will be able to: > Identify Control Intervals & Control Areas, CIDF, RDF > Recognize the 3 types of VSAM file KSDS, RRDS, ESDS > Apply insertions into a KSDS VSAM file, CI splits and CA splits > Properly define a VSAM data set by determining which options to select based on the projected usage and size of the data set > Identify buffer allocations and considerations for faster access to VSAM data sets > Recognize the usage, options, pros, and cons of alternate indexes > Utilize the options for data placement and index positioning > Use the LISTCAT to monitor the performance of a VSAM data set > Properly maintain a VSAM data set based on its historical usage and performance
Course Topics:	IDCAMS Define Cluster Attributes BUFFERSPACE CISIZE FREESPACE IMBED REPLICATE KEYRANGES ORDERED REUSE SHAREOPTIONS Buffer Usage STRNO BUFSP BUFND BUFNI Random and/or sequential processing considerations DEFINE and JCL options and usage Space Utilization CISIZE considerations and recommendations FREESPACE and SPLITS considerations and recommendations Alternate Indexes Spanned alternate indexes Alternate index RECORDSIZE considerations Effect of alternate indexes on buffering UPGRADE option pros and cons Data placement and Cluster Positioning Index and data placement considerations DASD seek considerations IMBED and REPLICATE combinations Monitoring What to look for in a LISTCAT When to look at a LISTCAT (new clusters and production clusters)
Prerequisites:	The participant should have a basic knowledge of VSAM and some familiarity with access method services IDCAMS, DEFINE, and LISTCAT functions.

VSAM Application Performance and Tuning Course

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