Dell Products Inc.

Emc IP Holding Company LLC

Dominick J Santangelo

Keyur B Desai

Vishal Tiwary

Divya Chukkapalli

Systems and methods for on-site filtering and prioritizing logged data prior to transmission to a support server are described. An analyzer application executing on the same system as a filesystem application may retrieve a core file dump in response to an unexpected behavior. An actively running thread at the time of the unexpected behavior may be identified, and thread relationship rules are used to generate a list of related threads based on sharing a common resource with the actively running thread. A relevance factor may be determined for each of the sub-components of the related threads based on a positioning within a hierarchical tree of the related threads. Log files from the sub-components may then be selected for a support file bundle, based on the relevance factors and the file sizes of the log files fitting within a size limit, then transmitted to the support server.

System and method to dynamically prioritize debug log collection for improved network transmission

One example method includes determining a hazard value such as a Weibull hazard function value for an operation such as a recovery operation. Enablement and disablement of a read ahead cache are performed based on the hazard value. The hazard value is representative of whether accesses to a file, such as a backup, being recovered or read are sequential or random. The read ahead cache is enabled when the accesses are sequential or sufficiently sequential.

Managing restore workloads using a hazard function

One example method includes determining a modulus such as a Weibull modulus for a recovery operation. Enablement and disablement of a read ahead cache are performed based on the modulus. The modulus is a linearization of a cumulative distribution function, where failures correspond to non-sequential accesses and successes correspond to sequential accesses.

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Raleigh, NC, United States of America

Dominick J Santangelo