Patent ID: 11874740
Assignee: DELL PRODUCTS L.P.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The computer-implemented method of claim 3, wherein the second defined system failure is any of:
a double disk failure in a RAID-5 disk layout of non-volatile back-end storage, where the first data storage system services new writes by writing new data to healthy non-volatile back-end storage, and where the first data storage system has existing data stored on failed non-volatile back-end storage that cannot be read or recovered; and
a metadata corruption of metadata used to access stored data on non-volatile back-end storage, where the metadata used to access the stored data is corrupted and cannot be used to retrieve the stored data, and where the metadata is used to map a logical address to its corresponding physical address on non-volatile back-end storage.