Storage device, storage system and logging method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsJong-Sung NA, Seona CHO, Kyungduk LEE, Sohyun HAN
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Abstract
Disclosed is a storage device, the device comprising, a nonvolatile memory device configured to store data; and a storage controller configured to perform logging for a selected memory area of the nonvolatile memory device in response to a specific event based on receiving a telemetry request from a host, and transmit log data collected by the logging in response to the telemetry request, the storage controller including a logging module configured to sample distribution data of a voltage range corresponding to the event type during the logging and provide the sampled distribution data as the log data.
Claims20
A storage device, the device comprising:
- a nonvolatile memory device configured to store data;
- and
- a storage controller configured to
- perform logging for a selected memory area of the nonvolatile memory device in response to a specific event based on receiving a telemetry request from a host, and
- transmit log data collected by the logging in response to the telemetry request,
- the storage controller including a logging module configured to sample distribution data of a voltage range corresponding to the event type during the logging and provide the sampled distribution data as the log data.
A storage system, comprising:
- a storage device including a nonvolatile memory device and configured to collect log data by performing logging on the nonvolatile memory device;
- and
- a host device configured to communicate with the storage device through a network and obtain the log data by transmitting a telemetry request to the storage device,
- wherein the host device is configured to control the storage device to log a cell distribution in a voltage range corresponding to some of data states of a selected memory area using a set feature command, and provide the log data as log data.
A logging method of a storage device having a nonvolatile memory device, comprising:
- receiving a set feature command provided from a host;
- setting a logging policy to log distribution data of a voltage range corresponding to some data states of the nonvolatile memory device according to the set feature command;
- and
- performing logging for the nonvolatile memory device according to the set logging policy,
- wherein the some of the data states is determined according to an event occurring in a storage state.
Dependencies are inferred from the claim text.