Samsung Electronics Co., Ltd.

Skhynix Inc.

Min Kyung Choi

Heejae Jeong

Yu-Na Park

Ji Yeun Kang

Deok-Sang Yun

Jae-Ho Jang

Sang-In Lee

Hee Jae Jeong

Ji Hyeoung Lee

Seung-Mok Lee

Byung Min Ha

Hae Lyong Song

Young Mi Yoon

Embodiments of the present disclosure relate to a memory system and an operating method thereof. A memory system may include a memory device and a memory controller configured to, when receiving from the host a flush command instructing to flush data cached in a data cache to the memory device, flush first data cached in the data cache, the first data having a size smaller than a size of the reference write unit, to the memory device, write a first parity associated with the first data to a parity memory block, update a value of a parity location pointer indicating a location where the first parity is written, and set a parity write flag indicating whether the parity at the location pointed by the parity location pointer is valid.

Memory system and operating method thereof for flushing data in data cache with parity

A method of operating a controller that controls an operation of a semiconductor memory device including a meta area, a normal area, and a state area, includes sensing a turn-on of a memory system including the controller, checking a last state flag among at least one or more state flags stored in the state area, and determining whether to perform a reclaim operation on meta data stored in the meta area based on the checked state flag.

Controller and method of operating under sudden power interruption

Embodiments of the disclosed technology relate to a memory system, and a memory controller and a method of operating the same. In performing a recovery operation after occurrence of sudden power off (SPO), by determining whether to delete, from a memory device, journaling information associated with data stored in a target open memory block based on the state of the memory device, thereby preventing unnecessary data movement in a situation where the number of free memory blocks included in the memory device is insufficient, and maintaining the number of free memory blocks included in the memory device to a predetermined value or more.

Memory system, memory controller and method for minimizing data loss using recovery operations in sudden power loss events

Remote controller

Measuring instrument for air pollution

Air purifier

A memory system and an operating method thereof are provided. The memory system includes a buffer memory storing a plurality of meta-slices constituting meta-data, and a memory controller marking meta-slices being updated, among the plurality of meta-slices stored in the buffer memory, as dirty meta-slices, generating journal data including update information corresponding to the dirty meta-slices, and flushing the journal data together with one of the dirty meta-slices to a non-volatile memory device.

Memory system and operating method thereof

Air conditioner

Transmitter-receiver for air conditioner

Growing community of inventors

Seoul, South Korea

Min Kyung Choi