Storage device performing asynchronous event reporting, computer system and event reporting method thereof

An event reporting method for a storage device running a plurality of virtual machines to support multi-tenant services, the event reporting method comprising:

• setting, by a host device, a workload threshold for each of the plurality of virtual machines on the storage device;
• monitoring a workload of each of the plurality of virtual machines by counting read commands or write commands sent to the storage device;
• and
• sending an asynchronous event interrupt for at least one of the plurality of virtual machines regardless of whether a request is received from the host device when the at least one of the plurality of virtual machines exceeds the workload threshold.

A computer system configured to operate in a client environment, the computer system comprising:

• a storage device configured to store or read data, and store driving conditions of the computer system in response to a read command, write command, or setting command;
• and
• a host device configured to set a count threshold of read commands or write commands of the storage device through the setting command,
• wherein the storage device includes,
• a non-volatile memory device configured to store the data, and
• a storage controller configured to store the count threshold according to the setting command, generate a read/write count per unit time by monitoring the read commands or the write commands, and send an event interrupt to the host device based on the read/write count per unit time and the count threshold.