Mark Steven Day is a prominent inventor based in Saratoga, CA (US). He has made significant contributions to the field of computing, particularly in file system technologies. With a total of 14 patents to his name, Day has established himself as a key figure in innovation.

Latest Patents

One of his latest patents is titled "File system support for rolling keys." This application relates to a key rolling process for a file system of a computing device. The key rolling process allows for files to be transparently re-encrypted in a background process while still allowing applications to access files being re-encrypted. During re-encryption, a portion of the file is decrypted using a current key for the file and re-encrypted using a new key for the file. During re-encryption, the portion of the file can be relocated to another location in memory. Metadata associated with the file can be updated to include information pertaining to the location of the re-encrypted portion. The metadata can also be updated to include information pertaining to how much of the file has been re-encrypted with the new key and how much of the file remains encrypted with the current key.

Another notable patent is the "Method and apparatus for relocating an active file system journal." This invention describes relocating a file system journal within a partitioned memory space. In one embodiment, a method involves relocating an active file system journal, which includes writing the changes for relocating the metadata structures into the new file system journal before the file system journal is activated. This ensures that journaling remains active during relocation and the corresponding file system remains consistent throughout the process.

Career Highlights

Mark Steven Day is currently employed at Apple Inc., where he continues to innovate and develop new technologies. His work has had a significant impact on the efficiency and security of file systems in computing devices.

Collaborations

Throughout his career, Day has collaborated with notable colleagues, including Donald J Brady and Deric S Horn. These collaborations have further enhanced his contributions to the field.

Conclusion

Mark Steven Day is a distinguished inventor whose work in file system technologies has paved the way for advancements in computing. His innovative patents and contributions to Apple Inc. highlight his importance in the tech industry.

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