Control method of data storage system for restarting expander

摘要

The present disclosure discloses a data storage system and a control method thereof. The data storage system includes a plurality of data storage devices, a temporary memory device and an expander. The control method includes: detecting, by the expander, if a flag is in a first status after the expander is restarted; sending, by the expander, a first command to all the data storage devices if the first status is detected. The first status indicates that all the data storage devices are ready for linking and operation.

主权项

1. A control method for a data storage system, the data storage system having a plurality of storage devices, a temporary memory device and an expander, the control method comprising:
detecting whether a flag is in a first status by the expander after the expander is restarted, wherein the flag is stored in the temporary memory device; when the flag is in the first status, simultaneously sending a first command to all the data storage devices by the expander; and when the flag is not in the first status, performing the steps of:
sending the first command to each of the data storage devices in sequence by the expander, wherein the expander waits until each data storage device becomes ready before proceeding to a next data storage device in the sequence;setting the flag to the first status in response to all the data storage devices being ready; andstoring the flag into the temporary memory device.