Dell Products Inc.

Ananthakrishnan Anirudhan

Deepak Vokaliga

Santoshkumar Konnur

Shruti Asmita

An example methodology includes, by a computing device, receiving a request to migrate a logical unit number (LUN) from a source array to a target array and, responsive to a determination that the LUN is a large LUN, dividing the large LUN into a plurality of partitions, creating a number of sessions corresponding to the plurality of partitions, wherein each session of the created sessions is operable to migrate data from a partition of the plurality of partitions, and initiating the created sessions to start copying data from the respective partitions in parallel. The method may also include, by the computing device, responsive to a determination that the LUN is not a large LUN, creating a single session operable to migrate data from the LUN and initiating the single session to start copying data from the LUN.

Systems and methods for improved migration of large LUNs

A port manager is configured to implement adaptive port ceiling assignment for background Input/Output (I/O) operations between heterogeneous storage arrays. The port manager generates a set of test I/O operations, applies the I/O operations to a port under test, determines a response time to complete the I/O operations on the port under test, and compares the response time of the current test with response times of a set of previous tests. Based on the test values, the port manager identifies a throughput inflection point for the port under test, which is used to set a maximum throughput of the port under test. The adaptive ceiling for the port under test is then set based on the maximum throughput times a ceiling percentage threshold value. The determined adaptive ceiling value is then used to prospectively limit background I/O operations on the port under test.

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Bengaluru, India

Ananthakrishnan Anirudhan