The VM/SP HPO 3880-23 Performance Results
Original Publication Date: 1986-Apr-30
Included in the Prior Art Database: 2007-Mar-30
Software Patent Institute
Robinson, B.: AUTHOR [+3]
When new hardware is made available, there are many questions that need answering regarding how to use the product, and how installa- tions would benefit by installing the product. To understand the 3880-23 in VM, two different installations installing 3880-23 storage controllers were studied to show how performance was affected by the new controllers. The performance data presented here shows how the installations were measured, and their measurement results. Each installation was con- figured differently, each used the cache for different purposes, and each used different means to measure the effects of the 3880-23. These dif- ferent environments should provide some reference points for installa- tions considering a 3880-23. Installations about to install a 3880-23 should look carefully at the dif- ferent techniques, and decide which methods will work most effectively for their own environment. Performance measurements were produced by the progam product YM Monitor. Analysis Program' (VMMAP, program number 5664-191), and the Program Product 'VM Performance Planning Facility' (VMPPF, program number 5664-179). VMMAP and VMPPF both provide service times for the 110 and will show the per- formance of the I/O Subsystem with different DASD configurations.
Washington Systems Center Gaithersburg, MD Technical Bulletin
The VMISP HPO 3880-23 Performance
GG66-0247-00 April 1986
The information contained in this document has not been submitted to any formal IBM test and is distributed on an "as is" basis without any warranty either expressed or implied. The use of this information or the implementation of any of these techniques is a customer responsibility and depends on the customer's ability to evaluate and inte- grate them into the customer's operational environment. While each item may have been reviewed by IBM for accuracy in a specific situation, there is no guarantee that the same or similar results will be obtained elsewhere. Customers attempting to adapt these techniques to their own environments do so at their own risk.
Performance data contained in this document was determined in a specific production environment; and therefore, the results which may be obtained in other operating envi- ronments may vary significantly. Users of this document should verify the applicable data for their specific environment.
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0 Copyright International Business Machines Corporation 1986
This publication presents results from two different installations that have installed a 3880-23 in VM/CIMS interactive environments.
The purpose of this publication is to:
Show results from production environments that have installed 3880-23's.
Show how VMIHPO installations ca...