摘要:
A method of controlling a hybrid hard disk drive. The method includes receiving a read command from a host; searching metadata of a file to be read; determining whether the metadata satisfies a predetermined setup condition; and if the metadata satisfies the setup conditions, copying the file to be read, from a first storage device and storing the file in a second storage device.
摘要:
Apparatuses and methods for redirecting data writes are disclosed. In one embodiment a controller may be configured to receive a command including write data and address data identifying a target zone of a data storage medium; determine whether the target zone contains sufficient available data sectors to store the write data; and record the write data to a common area of a different zone when the target zone does not contain sufficient available data sectors, the common area available to store data when a target zone lacks sufficient available data sectors. In another embodiment, a method may comprise receiving a write command identifying a target zone of a data storage medium; determining whether the target zone contains sufficient available data sectors to store the write data; and recording the write data to a common area of a different zone when the target zone does not contain sufficient available data sectors.
摘要:
Methods and apparatus for cache flush control and write re-ordering in a data storage system are provided. A cache flush control method includes cache flushing information stored in a cache memory to a first storage apparatus of a plurality of storage apparatuses included in a data storage system when a cache flush condition is generated, and performing a write command in a second storage apparatus of the plurality of storage apparatuses which has a write speed lower than the first storage apparatus according to information stored in the first storage apparatus processed with the cache flush.
摘要:
A data storing location managing method including generating an access frequency of a storing area accessed in a first storage apparatus according to a command received, copying data stored in the storing area of the first storage apparatus to a storing area of a second storage apparatus when the access frequency of the storing area of the first storage apparatus is greater than a reference value, and replacing location information of the storing area of the first storage apparatus with location information of the storing area of the second storage apparatus.
摘要:
Provided are a data storage medium accessing method of accessing a data storage medium of a data storage device according to a virtual address (VA), the data storage device to access the data storage medium according to the VA, and a computer readable recording medium having recorded thereon a program to access the data storage medium accessing method. The data storage medium accessing method includes the operations of converting a logical block address (LBA) included in a command received from a host into a VA and converting the VA into a real address of a data storage medium included in a data storage device, and accessing the data storage medium using the real address, wherein the VA is an address that is based on a reserved block of the data storage medium in a data write operation, wherein the reserved block is a valid block that is ready to have data written thereto, and wherein a current location of a head included in the data storage device during the data write operation is set according to the reserved block.
摘要:
A method of controlling a hybrid hard disk drive includes receiving a write command from a host; extracting metadata of a file to be written, determining whether the metadata satisfies a predetermined set condition, and storing the file to be written in a first storage device when the metadata satisfies the set condition.
摘要:
A data storing location managing method including generating an access frequency of a storing area accessed in a first storage apparatus according to a command received, copying data stored in the storing area of the first storage apparatus to a storing area of a second storage apparatus when the access frequency of the storing area of the first storage apparatus is greater than a reference value, and replacing location information of the storing area of the first storage apparatus with location information of the storing area of the second storage apparatus.
摘要:
Methods and apparatus for cache flush control and write re-ordering in a data storage system are provided. A cache flush control method includes cache flushing information stored in a cache memory to a first storage apparatus of a plurality of storage apparatuses included in a data storage system when a cache flush condition is generated, and performing a write command in a second storage apparatus of the plurality of storage apparatuses which has a write speed lower than the first storage apparatus according to information stored in the first storage apparatus processed with the cache flush.
摘要:
Disclosed are an apparatus and method for recycling areas of a data storage device by relocating data. In one embodiment, a method may comprise selecting a first storage area based on a quantity of obsolete data in the first storage area, moving valid data from the first storage area to a second storage area, and setting memory spaces corresponding to the first storage area as available memory for storing other data. Another embodiment may further comprise selecting a physical address-based move operation or a logical address-based move operation based on a number of sets of contiguous valid memory spaces in the first storage area, wherein the physical address-based move comprises moving data based on physical data addresses, and logical address-based moved comprises moving data based on logical block addresses.
摘要:
Disclosed are an apparatus and method for recycling areas of a data storage device by relocating data. In one embodiment, a method may comprise selecting a first storage area based on a quantity of obsolete data in the first storage area, moving valid data from the first storage area to a second storage area, and setting memory spaces corresponding to the first storage area as available memory for storing other data. Another embodiment may further comprise selecting a physical address-based move operation or a logical address-based move operation based on a number of sets of contiguous valid memory spaces in the first storage area, wherein the physical address-based move comprises moving data based on physical data addresses, and logical address-based moved comprises moving data based on logical block addresses.