International Business Machines Corporation

Ashmi Ashokkumar Chokshi

Prasenjit Sarkar

Soumitra Sarkar

David Lynn Merbach

Glen Hattrup

Sandeep Gopisetty

Sumant Padbidri

An apparatus, system, and method are disclosed for detecting entity changes in a storage area network. A discovery module probes a plurality of entities of the storage area network to detect an event in response to a policy, stores attributes of the probed entities, and reports the event with a probe event reference. A monitor module receives a self-announced event reference of the event if an entity communicates the event. A configuration module records the event as an initiated event reference if the event is initiated by an administrator. An event manager synthesizes a report of the event from the event references.

Detecting entity changes in a storage area network environment

A detectibility service for a storage infrastructure manager (SIM) operating on a storage area network (SAN) is disclosed directed to addressing a situation where there may be multiple sources of duplicate or contradictory information to the SIM about the presence and condition of an element in the SAN. The service can account for both authoritative as well as nonauthoritative sources of information in a SAN, which participate in the discovery process scanning for SAN elements. Both authoritative and nonauthoritative sources of information can be used to report a given SAN element during a probe, taking advantage of the more efficient processing of information from authoritative sources to override information from nonauthoritative sources regardless of the order in which the various scans may occur.

Detecting missing elements in a storage area network with multiple sources of information

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Santa Clara, CA, United States of America

Ashmi Ashokkumar Chokshi