摘要:
An approach to improving performance of a target system is disclosed. The approach may involve determining how similar a target system being considered is to other systems in use by other clients. For each of these other separate systems, the approach may involve determining the differences between the performance of the target system and the performance of the separate system, accounting for the level of similarity. A report can be generated that identifies performance values of the target system that are outside an acceptable range, which is based on the performance of the other separate systems. Based on this report, the administrator of the target system can consider configuration changes and upgrades to improve performance of the target system.
摘要:
Various embodiments for optimizing automated system-managed storage (SMS) operations in a computing storage environment. An execution of at least one automatic class selection (ACS) routine is monitored to determine at least one frequently used instruction. The ACS routine is modified for at least one predetermined time interval. The at least one frequently used instruction is moved to a higher execution priority of the modified ACS routine.
摘要:
In one embodiment, a system includes a first storage including track-managed storage and cylinder-managed storage, logic adapted for receiving a request to allocate a target data set on the first storage, logic adapted for determining a size of a source data set on a second storage, wherein data from the source data set will be copied to the target data set, logic adapted for comparing the determined size of the source data set to a break point value to determine if the target data set is to be stored to the track-managed storage or the cylinder-managed storage of the first storage, logic adapted for receiving the data from the source data set, and logic adapted for storing the data from the source data set to the target data set in either track-managed storage or cylinder-managed storage of the first storage based on the comparison.
摘要:
Various embodiments for retaining diagnostic information for data in a computing storage environment are provided. In one such embodiment, a diagnostic component associated with a base data set via a catalog association record is initialized. The diagnostic component configured to retain base data set-specific diagnostic information retrievable by the computing storage environment to assist in error diagnosis.
摘要:
According to one embodiment, a test system includes a data collection module adapted for collecting data from a test system, a storage module adapted for storing the collected data in an organized format, the data including problem data, associated configuration information, associated performance information, and activity data, an analysis module adapted for analyzing the collected data to define at least two activity zones by correlating the problem data, the associated configuration information, the associated performance information, and the activity data, the at least two activity zones including a safe zone where the test system operates normally and a danger zone where the test system is susceptible to operational problems, and an adjustment module adapted for adjusting available resources and/or workload of the test system to cause the test system to operate in the danger zone thereby increasing a likelihood of fault occurrence for testing purposes.
摘要:
A method for optimizing a plurality of volume records stored in cache may include monitoring a volume including multiple data sets, wherein each data set is associated with a volume record, and each volume record is stored in a volume record data set. The method may include tracking read and write operations to each of the data sets over a period of time. The method may further include reorganizing the volume records in the volume record data set such that volume records for data sets with a larger number of read operations relative to write operations are grouped together, and volume records for data sets with a smaller number of read operations relative to write operation are grouped together. A corresponding apparatus and computer program product are also disclosed.
摘要:
A method for selectively generating trace data is disclosed. Such a method includes executing a first module on a processor. The processor is operably coupled to a memory storing the first module and one or more branch modules. The method further includes detecting the execution of an instruction of the first module to execute a branch module. In response to detecting execution of the instruction, traces of branch modules subsequently executed by the processor are generated. Upon detecting a return of execution by the processor to the first module, the generation of traces is terminated and a trace report is generated. A corresponding apparatus and computer program product are also disclosed herein.
摘要:
A method for reducing the data analysis overhead on a production system is disclosed herein. In one embodiment, such a method includes replicating production data from a primary site to a remote site. A control data set containing information for directing analysis of the production data is generated at the primary site and replicated to the remote site. At the remote site, the method includes analyzing the production data as directed by the control data set by making use of time on a CPU located at the remote site. Analysis may involve executing a diagnostic routine and/or generating a log file documenting the results of the analysis. A corresponding apparatus, system, and computer program product are also disclosed and claimed herein.
摘要:
Various embodiments for adaptive reorganization of a virtual storage access method (VSAM) data set are provided. In one exemplary embodiment, upon each control interval (CI) split of a plurality of CI splits occurring over a period of time, historical data including a key value for a record causing each CI split is recorded in a data repository. The historical data is analyzed with a predictive algorithm to determine an amount of free space to be allocated to each of a plurality of control intervals generated pursuant to the adaptive reorganization. The predictive algorithm allocates a greater percentage of the free space to a first location of the VVDS having a larger proportion of historically placed key values than a second location of the VVDS having a smaller proportion of the historically placed key values.
摘要:
An approach to providing auto recovery of data sets in volumes. When an error condition results from an attempt to access an unintentionally deleted data set, an event is generated and sent to other systems with access to the volume in which the data set existed. The volume is also locked to prevent corruption during the recovery process. A system that has the unintentionally deleted data set open retrieves location information for the data set from control blocks in the system's memory. This location information is used to build a new entry for the data set in the VTOC for the volume. When the data set is thus recovered, the data set is validated, the lock removed, and the data set is made available to the systems sharing the volume.