US 12,405,867 B2
Crash-based raid data storage system
Nikhith Ganigarakoppal Kantharaju, Hassan (IN); Richa Kumari, Bangalore (IN); Abhijit Shashikant Mirajkar, Bangalore (IN); and Ajay Sukumaran Nair Syamala Bai, Bangalore (IN)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Aug. 2, 2023, as Appl. No. 18/229,293.
Prior Publication US 2025/0045177 A1, Feb. 6, 2025
Int. Cl. G06F 11/16 (2006.01); G06F 12/02 (2006.01)
CPC G06F 11/1666 (2013.01) [G06F 12/023 (2013.01); G06F 2201/805 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A crash-based Redundant Array of Independent Disk (RAID) data storage system, comprising:
a chassis;
a plurality of storage subsystems that are housed in the chassis;
an operating system that is provided in the chassis and coupled to the plurality of storage subsystems; and
a software Redundant Array of Independent Disk (RAID) subsystem that is provided in the chassis, coupled to the plurality of storage subsystems, and configured to:
reserve, during a runtime mode of the operating system, a RAID driver telemetry storage portion of a RAID logical storage subsystem provided by at least one storage device in the plurality of storage subsystems;
initialize, in response to the operating system entering a crash dump mode from the runtime mode, respective controller devices in each of the plurality of storage subsystems; and
store, in the RAID driver telemetry storage portion of the RAID logical storage subsystem provided by the at least one storage device using the respective controller device for that storage device and during the crash dump mode of the operating system, RAID driver telemetry data generated by the software RAID subsystem.