Selecting a primary storage device

摘要

In a method for determining a primary storage device and a secondary storage device for copies of data, one or more processors determine metrics data for at least two storage devices in a computing environment. The one or more processors adjust the metrics data. The one or more processors determine an I/O throughput value based on the adjusted metrics data for each of the at least two storage devices. The one or more processors compare the determined I/O throughput values for each of the at least two storage devices. The one or more processors select a storage device of the at least two storage devices with the lowest determined I/O throughput as a primary storage device.

主权项

1. A method for determining a primary storage device and a secondary storage device for copies of data, the method comprising the steps of:
one or more processors determining metrics data for at least two storage devices located on different servers in a computing environment, wherein the metrics data includes: (i) a read data blocks rate for each respective storage device, the read data blocks rate for a respective storage device being a rate at which data is read from the respective storage device by the storage device's respective server, (ii) a written data blocks rate for each respective storage device, the written data blocks rate for a respective storage device being a rate at which data is written to the respective storage device by the storage device's respective server, and (iii) network traffic metrics including packet transmission information for one or more devices that send network communications associated with the respective storage devices; the one or more processors adjusting the metrics data using a predefined weighting factor for the read data blocks rates, a predefined weighting factor for the written data blocks rates, and a predefined weighting factor for the network traffic metrics, wherein the predefined weighting factor for the written data blocks rates is higher than the predefined weighting factor for the read data blocks rates; the one or more processors determining an I/O throughput value based on the adjusted metrics data for each of the at least two storage devices; the one or more processors comparing the determined I/O throughput values for each of the at least two storage devices; and the one or more processors selecting a storage device of the at least two storage devices with the lowest determined I/O throughput as a primary storage device.