Delay of power off to write data from volatile to non-volatile memory of a solid state drive

    公开(公告)号:US11294442B2

    公开(公告)日:2022-04-05

    申请号:US16482970

    申请日:2017-02-01

    Abstract: In an example, a method, non-transitory machine-readable storage medium, and apparatus is described for preserving data in a solid state drive in the event of an unclean shutdown of the host computing system. A controller of the host computing system detects an unclean shutdown that initiates a power down of the host computing system, In response to the detecting the controller asserts a first signal that signals the solid state drive to write data in a volatile memory of the solid state drive to a non-volatile memory of the solid state drive, The controller then initiates a timer to count down a predefined delay period after the asserting. Upon an expiration of the timer, the controller asserts a second signal that instructs a power supply of the host computing system to power off.

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