Solid state device with improved sustained data writing speed

A data storage apparatus comprising:

• a non-volatile memory (NVM) comprising:
• a first NVM portion that includes a plurality of first cell types, wherein the first NVM portion comprises:
• a first sub-portion that is allocated to store file management data;
• and
• a second sub-portion that is allocated to store payload data,
• a second NVM portion that includes a plurality of second cell types;
• and
• a controller coupled to the NVM, the controller configured to:
• receive a plurality of payload data and a plurality of file management data;
• store the plurality of file management data at the NVM, wherein storing the plurality of file management data comprises:
• determining whether there is space available for storing data at the first sub-portion of the first NVM portion;
• storing one or more file management data at the first sub-portion of the first NVM portion, when there is space available for storing data at the first sub-portion of the first NVM portion;
• and
• storing one or more file management data at the second NVM portion, when there is no space available for storing data at the first sub-portion of the first NVM portion;
• and
• store the plurality of payload data at the NVM, wherein storing the plurality of payload data comprises:
• determining whether there is space available for storing data at the second sub-portion of the first NVM portion;
• storing one or more payload data at the second sub-portion of the first NVM portion, when there is space available for storing data at the second sub-portion of the first NVM portion;
• and
• storing one or more payload data at the second NVM portion, when there is no space available for storing data at the second sub-portion of the first NVM portion.

A method for operating a data storage apparatus, comprising:

• receiving data, at a controller coupled to a non-volatile memory (NVM), wherein the NVM comprises:
• a plurality of first cell types comprising:
• a first plurality of addresses allocated to store only file management data;
• and
• a second plurality of addresses allocated to store only payload data wherein payload data does not include File Allocation Table (FAT) data;
• and
• a plurality of second cell types comprising a third plurality of addresses;
• determining whether the received data includes payload data or file management data;
• storing the received data at one or more addresses from the first plurality of addresses, when the received data includes file management data;
• and
• storing the received data at one or more addresses from the second plurality of addresses, when the received data includes payload data.

A method for operating a data storage apparatus, comprising:

• receiving data, at a controller coupled to a non-volatile memory (NVM), wherein the NVM comprises:
• a plurality of first cell types comprising:
• a first plurality of addresses allocated to store file management data;
• and
• a second plurality of addresses allocated to store payload data;
• and
• a plurality of second cell types comprising a third plurality of addresses;
• determining whether the received data includes payload data or file management data;
• storing the received data at one or more addresses from the first plurality of addresses, when the received data includes file management data, wherein storing the received data at one or more addresses from the first plurality of addresses, when the received data includes file management data, comprises:
• determining whether there is space available for storing data at the first plurality of addresses;
• storing the received data at one or more addresses from the first plurality of addresses, when there is space available for storing data at the first plurality of addresses;
• and
• storing the received data at one or more addresses from the third plurality of addresses, when there is no space available for storing data at the first plurality of addresses;
• and
• storing the received data at one or more addresses from the second plurality of addresses, when the received data includes payload data, wherein storing the received data at one or more addresses from the first plurality of addresses, when the received data includes payload data, comprises:
• determining whether there is space available for storing data at the second plurality of addresses;
• storing the received data at one or more addresses from the second plurality of addresses, when there is space available for storing data at the second plurality of addresses;
• and
• storing the received data at one or more addresses from the third plurality of addresses, when there is no space available for storing data at the second plurality of addresses.

A data storage apparatus comprising:

• means for non-volatile storing of data comprising:
• means for first non-volatile storing of data, wherein the means for first non-volatile storing of data includes a plurality of first cell types, the means for first non-volatile storing of data, comprising:
• a first plurality of addresses allocated to store file management data;
• and
• a second plurality of addresses allocated to store only payload data, wherein payload data does not include File Allocation Table (FAT) data;
• and
• means for second non-volatile storing of data, wherein the means for second non-volatile storing of data includes a plurality of second cell types, the means for second non-volatile storing of data, comprising a third plurality of addresses;
• and
• means for controlling the means for non-volatile storing of data, wherein the means for controlling the means for non-volatile storing of data includes:
• means for receiving data;
• means for determining whether the received data includes payload data or file management data;
• means for storing the received data at one or more addresses from the first plurality of addresses, when the received data includes file management data;
• and
• means for storing the received data at one or more addresses from the second plurality of addresses, when the received data includes payload data.