Patent Number: 
Section: claims

1. A method for preparing a captured trace, the captured trace being stored for later use, of I/O workload activity experienced on one or more data storage volumes included with a data storage system for being analyzed by a computerized trace analysis process, the method comprising the steps of:preparing the captured trace for being analyzed by categorizing information from the captured trace into categories related to (i) components in the data storage system experiencing the traced workload activity and (ii) information type including response times and task events;using the categories for access to trace-related information for trace analysis by the computerized trace analysis process; andpresenting the categorized trace-related information on a user screen. 2. The method of claim 1, wherein a summary file summarizing the captured trace is created including the categories information and the summary file is used for the access to trace-related information by the computerized trace analysis process. 3. The method of claim 2, the method of claim 1, wherein the category of information type includes I/O activity. 4. The method of claim 2, wherein the category of components includes logical volume representation of the data storage volumes. 5. The method of claim 2, wherein the computerized trace analysis process includes communication to the trace capture process for being responsive to the act of a trace being captured. 6. The method of claim 2, wherein the computerized trace analysis process includes communication to the trace capture process for being responsive to the act of a trace being captured. 7. The method of claim 1, wherein the category of information type includes I/O activity. 8. The method of claim 1, wherein the category of components includes logical volume representation of the data storage volumes. 9. The method of claim 1, wherein the computerized trace analysis process includes communication to the trace capture process for being responsive to the act of a trace being captured. 10. The method of claim 9, wherein the category of components includes logical volume representation of the data storage volumes. 11. A computer program product available from computer readable medium for preparing a captured trace, the captured trace being stored for later use, of I/O workload activity experienced on one or more data storage volumes included with a data storage system for being analyzed by a computerized trace analysis process, the computer program product when loaded into a computer system, causing the computer system to execute the steps of:preparing the captured trace for being analyzed by categorizing information from the captured trace into categories related to (i) components in the data storage system experiencing the traced workload activity and (ii) information type including response times and task events;using the categories for access to trace-related information for trace analysis by the computerized trace analysis process; andpresenting the categorized trace-related information on a user screen. 12. The program product of claim 11, wherein a summary file summarizing the captured trace is created including the categories information and the summary file is used for the access to trace-related information by the computerized trace analysis process. 13. The program product of claim 11, wherein the category of information type includes I/O activity. 14. The program product of claim 11, wherein the category of components includes logical volume representation of the data storage volumes. 15. The program product of claim 11, wherein the computerized trace analysis process includes communication to the trace capture process for being responsive to the act of a trace being captured. 16. A system for preparing a captured trace, the captured trace being stored for later use, of I/O workload activity experienced on one or more data storage volumes included with a data storage system for being analyzed by a computerized trace analysis process, the system including:a data storage system including one or more data storage volumes;a computer in communication with the data storage system including program logic for carrying out the computer-executed steps of:preparing the captured trace for being analyzed by categorizing information from the captured trace into categories related to (i) components in the data storage system experiencing the traced workload activity and (ii) information type including response times and task events;using the categories for access to trace-related information for trace analysis by the computerized trace analysis process; andpresenting the categorized trace-related information on a user screen. 17. The system of claim 16, wherein a summary file summarizing the captured trace is created including the categories information and the summary file is used for the access to trace-related information by the computerized trace analysis process. 18. The system of claim 16, wherein the category of information type includes I/O activity. 19. The system of claim 16, wherein the category of components includes logical volume representation of the data storage volumes. 20. The system of claim 16, wherein the computerized trace analysis process includes communication to the trace capture process for being responsive to the act of a trace being captured.