Dell Products Inc.

Itay Dar

Jacob Cherian

Noa Neria

Michael Estrin

A system and method for efficient inode enumeration is disclosed. The system and method for enumerating inodes, comprises locating one or more inode files associated with the file system. For each of the one or more inode files, determining a physical address range for each inode within the inode file. The system and method further comprises creating a list of the physical address range for each of the inodes within the one or more inode files. The system and method comprises sorting the list based on physical addresses of the inodes.

System and method for efficient inode enumeration

A method and a system for detecting an occurrence of an auto-commit operation applied to files managed by a file server compliant with write-once-read-many (WORM) rules. The method includes: allocating a plurality of non-overlapping predefined time ranges starting from a newest-changed-files time range and ending at an oldest-changed-files time range, wherein the time ranges add up to an auto-commit period associated with the auto-commit operation; repeatedly updating a count of files whose file-change-time is associated respectively with one of the allocated time ranges, wherein the updating is carried out every time the predefined time range lapses; and detecting, every time the time range lapses, an occurrence of an auto-commit operation applied to at least one of the files stored on the volume within a duration of the time range since the updating, whenever the count of the files associated with the oldest-changed-files time range is non-zero.

Method and system for scan-free detection of auto-committed files in a write-once-read-many storage devices

In accordance with embodiments of the present disclosure, a storage system may include a storage array comprising one or more storage resources, a processor communicatively coupled to the storage array, and a de-duplication module comprising instructions embodied on a computer-readable medium communicatively coupled to the processor. The de-duplication module may be configured to, when read and executed by the processor: generate a fingerprint for an item of data stored on the storage array; identify a partition for the fingerprint; associate the partition with a hardware instance selected from a plurality of hardware instances, wherein each particular hardware instance comprises one or more information handling resources; and query the selected hardware instance to determine if the fingerprint exists on the hardware instance.

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Rishon Lezion, Israel

Itay Dar