×

Method and system for monitoring and analyzing quality of service in a storage system

  • US 9,542,346 B2
  • Filed: 01/14/2014
  • Issued: 01/10/2017
  • Est. Priority Date: 01/14/2014
  • Status: Active Grant
First Claim
Patent Images

1. A machine implemented method, comprising:

  • collecting quality of service (QOS) data for a plurality of storage volumes from a storage operating system of a storage system having a plurality of resources;

    wherein a processor executable performance manager collects the QOS data from the storage operating system and the QOS data includes a response time in which each of the plurality of storage volumes respond to an input/output (I/O) request;

    a wait time for each I/O request at each of the resources of the storage system; and

    a number of visits for each I/O request at each of the resources of the storage system;

    generating an expected range for future QOS data based on the collected QOS data, where the expected range is a range of measured performance activity of a workload over a period of time for predicting future QOS data behavior of the storage volumes;

    monitoring QOS data for each storage volume for determining whether a currently collected QOS data for each storage volume is within the expected range; and

    determining that a resource of the storage system is in contention between any of the plurality of storage volumes resulting in a storage volume becoming a victim due to overuse by another storage volume based on a dynamic threshold value defined by the expected range.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×