Samsung Electronics Co., Ltd.

Sungjong Seo

Woojoong Lee

Hyeongjun Kim

Yeongjin Gil

Hobin Woo

Junbeom Yeom

Jongmin Kim

Jaewook Kim

Hyunjoon Cha

Sungdo Moon

Sunghwan Yun

Kitae Lee

Jongwoo Hong

An electronic device in an example embodiment may include a communication interface configured to receive an original file, a memory, and a processor. The processor may generate bit information corresponding to uppercase and lowercase letters included in a filename of the original file. The processor may generate a case insensitive (CI) filename in which the filename of the original file is expressed by characters of a first type. The processor may encrypt the CI filename and may calculate a first hash value corresponding to the encrypted CI filename. The processor may record filename metadata including at least one of the encrypted CI filename, a length of the encrypted CI filename, the first hash value, and the bit information, in the memory. The processor may search for a target file to be found based on the filename metadata.

Operation method and electronic device for generating and using filename metadata including encrypted case insensitive filename

An electronic device is provided. The electronic device includes a storage, and a processor configured to execute a storage device manager function, when the storage device manager function is executed, check a free space on a file system, as a result of the checking of the free space, determine whether the free space of the storage is less than or equal to a first reference ratio, when the free space of the storage is less than or equal to the first reference ratio, select and compress data having a use frequency less than or equal to a predetermined use frequency, manage the compressed data by using a list, and reserve and process a block secured by the compression on the file system.

Electronic device for selectively compressing and decompressing files based on free space and use frequency

An electronic device includes: a memory including a storage; and a processor operatively connected to the memory, wherein the processor is configured to: based on a request to delete a file, identify use attribute information about the file requested to be deleted; based on information related to an extension of the file requested to be deleted that being stored in the memory, update the information related to the extension of the file requested to be deleted, based on the use attribute information; and configure an attribute of the extension of the file requested to be deleted, based on the updated information related to the extension of the file requested to be deleted and a hotness condition of the storage.

Electronic device and storage management method using same

An electronic device includes: a storage device including multiple segments configured to store data; a buffer memory configured to store segment attributes corresponding to the multiple segments, respectively; and one processor electrically connected to the storage device and the buffer memory. The one processor is configured to: determine, based on two or more parameters related to a data requested to be written, a data attribute; store the data requested to be written in a segment of the multiple segments, the segment being corresponding to the data attribute among the multiple segments; store a segment attribute of the segment, which is determined based on the data attribute in the buffer memory; update the data attribute, based on a data modification time of the data requested to be written; and update the segment attribute, based on the updated data attribute.

Electronic device and method for performing garbage collection

An electronic device is provided. The electronic device includes a storage device configured to include a first partition, a second partition, and a third partition, and a processor configured to configure the second partition as a first volume and the third partition as a second volume, and attach or detach the second volume to or from a file system to manage a storage space of the storage device.

Electronic device and operation method of electronic device for managing storage space

An electronic device may include a storage, a memory, and a processor configured to read or write a file from or to the memory. The memory may include a lower file system for compressing and storing a file by using a first partition of the storage and an upper file system for decompressing and storing a file by using a second partition of the storage and/or the lower file system. The processor may copy, to an upper file system of the memory, a first file having an access number greater than a certain level by decompressing the first file in the lower file system, and may control a stackable file system to read the first file from the upper file system and to provide the first file to the application layer based on a request from the application layer being detected with respect to the copied first file.

Electronic device and method of electronic device operating file system using data compression and memory partition

Provided is an electronic device including a file system, a memory, and a processor. The memory stores at least one instruction that instructs, when executed, the processor to receive a request for access to a file or directory stored in a user data area of the file system. In response to the reception of the request, first information associated with the file or directory is store in the memory, and the size of the file or directory is displayed using the first information. When the first information is information associated with the file, the information indicates the size of the file. When the first information is information associated with the directory, the information indicates a sum of the sizes of all subdirectories and all files included in the directory.

Electronic device and method for acquiring size of file or directory stored in file system

A method for initializing a storage is provided. The method includes comparing a size of a disk partition of the storage with a size of a filesystem image recorded on the storage, and reconfiguring the filesystem image in a dynamic manner if the disk partition size is larger than that of the filesystem image, wherein the filesystem image may include a metadata area composed of metadata blocks and a data block area composed of file data blocks, and wherein the data block area may include in sequence a first free block area composed of only file data blocks where data is not recorded, and a file data area composed of at least one file data block where data is recorded. Various other embodiments are possible.

Method and electronic device for initializing storage

Disclosed is a method of analyzing fragmentation of an electronic device, which comprises: receiving information on at least one allocation unit of a memory; and calculating fragmentation ratio information on the basis of the received information on at least one allocation unit.

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Suwon-si, South Korea

Sungjong Seo