Facebook Assigned Two Patents

Efficient storage and retrieval of resources for rendering structured documents
Facebook, Inc., Menlo Park, CA, has been assigned a patent (9,521,184) developed by Jiang, Changhao, San Jose, CA, and Ellingsen, Erling Alf, Mountain View, CA, for a “efficient storage and retrieval of resources for rendering structured documents.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “In one embodiment, a method includes accessing local storage on a computing device to render a structured document. The structured document corresponds to a first domain or sub-domain and includes an inline-frame element that corresponds to a second domain or sub-domain. The local storage includes one or more first local-storage slots that are reserved for resources associated with the first domain or sub-domain and one or more second local-storage slots that are reserved for resources associated with the second domain or sub-domain. The method further includes loading one or more resources for rendering the structured document from the first local-storage slots and loading one or more resources for rendering the structured document from the second local-storage slots.“

The patent application was filed on March 6, 2014 (14/199,850).

Storage drive remediation in RAID system
Facebook, Inc., Menlo Park, CA, has been assigned a patent (9,519,545) developed by Niewczas, Mateusz Marek, Menlo Park, CA, for a “storage drive remediation in a RAID system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Techniques, systems, and devices are disclosed for remediating a failed drive in a set of drives, such as a RAID system, without having to physically replace the failed drive. After receiving a signal of an error indicating a specific physical portion on a storage drive in the set of storage drives has caused the drive to fail, the system can unmount the drive from the filesystem while other drives continue to operate. Next, the system can identify one or more files in the filesystem that have associations with the specific physical portion on the failed drive. Next, the system can remount the drive onto the filesystem and subsequently delete the identified files from the filesystem. The system can then perform a direct I/O write to the specific physical portion on the failed drive to force reallocation of the specific physical portion to a different area on the failed drive. The system can also power-cycle the drive before this remediation, e.g., to determine if this remediation can be avoided.“

The patent application was filed on November 11, 2014 (14/538,703).