Patent ID: 11874770
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The data storage device of claim 7, wherein the memory includes a list of flash blocks dedicated for L2PTT storage, wherein the data storage controller memory further includes a mapping unit page location index, and wherein the serial initialization operation includes the data storage controller configured to:
determine, with the mapping unit page directory, a set of mapping unit pages staged in the mapping unit staging page,
process the mapping unit page directory, and
for each mapping unit page index included in the mapping unit page directory,
determine whether a record in the mapping unit page location index has been initialized,
when the record in the mapping unit page location index has not been initialized, initialize the record, in the mapping unit page location index, with a relative index of a corresponding flash block in the list of flash blocks dedicated for L2PTT storage, and
copy content of a mapping unit page from a location of the mapping unit page, in the mapping unit staging page, to a corresponding location in the indexless L2PTT.