Disk performance analysis manner of large-sized data based system

摘要

(57) Abstract Topic The invention in this application physical, in order to analyze performance problem, logical and, at all level of data retention, it is something which offers the tool which can have the very large-scale database (VLDB22, 26) database manager analyze (DBA). Solutions Regarding the invention in this application, retention of information is monitored at 3 level. The database file (42) and the file system file (48), it is individual disk drive (50). Activity of each retention level and the parameter which shows performance are picked with the interval where it is chosen, are retained (45 and 58). The analysis tool makes the time window DBA CHOOSE, in order to evaluate database performance in the range, is offered (from 52 and 130 166). This analysis tool has had logical of the database of the monitor target and the map (60) of physical arrangement, while displaying with the technique which can understand I/O activity easily, it makes between both level of the physical structure move with logical it participates in the retention of the data in DBA.