Storage device and storage system
AssigneeSamsung Electronics Co., Ltd.
InventorsKwang-Kyu Bang, Young-Min Kim, Kwan-Bin Yim
Life of this patent
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Abstract
Provided is a storage device including a power management integrated circuit chip; multiple non-volatile memories configured to receive power from the power management integrated circuit chip; and a controller configured to control the non-volatile memories, wherein the controller checks a state of the power during a read operation and a write operation on the non-volatile memories and, when a power failure is detected in at least one of the non-volatile memories, implements a power failure detection mode regarding the read operation and the write operation on all of the non-volatile memories.
Claims17
A storage device, comprising:
- a power management integrated circuit chip;
- a plurality of non-volatile memories configured to receive power from the power management integrated circuit chip;
- and
- a controller configured to control the non-volatile memories,
- wherein the controller checks a state of the power during a read operation and a write operation on the non-volatile memories and, when a power failure is detected in at least one of the non-volatile memories, implements a power failure detection mode regarding the read operation and the write operation on all of the non-volatile memories,
- wherein the controller detects power failure when a read voltage and a write voltage provided to the non-volatile memories are temporarily interrupted, transmits an alarm signal to a host when power failure is detected in at least one of the non-volatile memories, and transmits an alarm cancellation signal to the host when power failure is not detected in all of the non-volatile memories after the alarm signal is transmitted.
A storage system, comprising:
- a plurality of storage devices each comprising a power management integrated circuit chip, a non-volatile memory receiving power from the power management integrated circuit chip, and a controller configured to control the non-volatile memory;
- and
- a host configuring a multiple interface communication with the storage devices,
- wherein the host checks a state of the power during a read operation and a write operation on the non-volatile memories included in the storage devices and, when a power failure is detected in at least one of the non-volatile memories, implements a power failure detection mode regarding the read operation and the write operation on all of the non-volatile memories,
- wherein the host selects some of the storage devices as a selected plurality of storage devices by controlling a channel of the multiple interface communication, and
- checks the state of the power regarding the non-volatile memory of each of the selected plurality of storage devices.
A storage system, comprising:
- a plurality of storage devices each comprising a power management integrated circuit chip, a non-volatile memory receiving power from the power management integrated circuit chip, and a controller configured to control the non-volatile memory;
- a contact module capable of mounting the storage devices;
- and
- a host configured to communicate with the storage devices,
- wherein the host switches a state of the power to a test mode while a read operation and a write operation are being performed on non-volatile memories included in the storage devices and collects information regarding whether to implement a power failure detection mode regarding the read operation and the write operation on the non-volatile memories.
Dependencies are inferred from the claim text.