US 12,008,252 B2
Data storage device with data padding and safe and efficient alignment of data zones with data containers
Scott Burton, Westminster, CO (US); Daniel J. Wade, Boulder, CO (US); and Eric B. Smith, Denver, CO (US)
Assigned to WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US)
Filed by WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US)
Filed on Jun. 27, 2022, as Appl. No. 17/850,945.
Prior Publication US 2023/0418493 A1, Dec. 28, 2023
Int. Cl. G11B 20/18 (2006.01); G06F 3/06 (2006.01); G11B 20/12 (2006.01)
CPC G06F 3/064 (2013.01) [G06F 3/0607 (2013.01); G06F 3/0619 (2013.01); G06F 3/0674 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A data storage device, comprising:
one or more disks;
an actuator mechanism configured to position one or more heads proximate to a recording medium of the one or more disks; and
one or more processing devices, configured to:
detect a criterion for inserting padding on a recording medium proximate to one or more data containers to be written to the recording medium, the data containers configured for assigning a plurality of logic blocks to the data containers, the logic blocks configured to store data to be written in an interleaved pattern across a plurality of sectors based on a distributed sector encoding scheme,
wherein detecting the criterion comprises detecting a mismatch in size between at least a portion of a zone and an integer number of one or more of the data containers in which to write the at least a portion of the zone; and
insert, in response to detecting the criterion, one or more mapping indicators to a mapping of the recording medium to indicate one or more padding blocks proximate to the one or more data containers on the recording medium,
wherein the one or more processing devices are further configured such that:
inserting the one or more mapping indicators to the mapping of the recording medium comprises inserting one or more indications of one or more designated defects to the mapping.