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Performance Improvements at Point Of Sale - A Guide to Getting the most out of your 4690 System. It is clear that many of the IBM 4690 POS applications could use an overhaul. But who has the time? And where would one start? |
| Terminal Snapshot Dump |
| Application Serviceability Pack |
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Overview - Brief Description of Feature Terminal Snapshot Dump is an InSight Terminal Agent feature that quickly writes selective terminal memory areas to a file on the controller without restarting terminal. Included in the dump are various InSight trace and log histories and optional application data areas. Multiple options exist to trigger a snapshot dump:
Problem - What Problem Does the Feature Solve? Full terminal dumps have been the primary way to collect problem determination information for diskless 4690 terminals. Extensive debug logging is not really an option because of the write burden that logging from many terminals puts on the 4690 controllers and the fact that 4690 controllers have no disk write caching. Also, full terminal dumps are often interrupted by store associates eager to get terminals back online and so they often are not available. Finally, interpretation of full terminal dumps often requires IBM involvement. The snapshot dump feature was designed and developed to help solve these issues and to make it much more likely for customers to get to InSights trace information when needed. Solution - Short Description of How the Feature Works The following are characteristics of the snapshot dump facility:
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