Post by Colm Keegan (thank you)
The term “noisy neighbor” in the storage context refers to a rogue virtual machine (VM) that periodically monopolizes storage I/O resources to the performance detriment of all the other VM “tenants” in the environment. This phenomenon can become more pervasive as VM density per host increases in data center environments. Unless the proper safeguards are implemented, predictable application performance becomes very difficult to attain, resulting in end user dissatisfaction and a loss of confidence in IT’s ability to provide a reliable service.
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