Resource reservation for storage system metadata updates

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United States of America Patent

PATENT NO 9965196
SERIAL NO

14518157

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Storage systems track free blocks using various data structures and maps. For instance, free block maps may contain data blocks with values that indicate whether a block is free or not. When an operation results in a block being freed, the relevant data block in the maps must be written during an I/O operation to update the value. Large numbers of updates my occur after an operation that frees a large numbers of blocks, which can lead to performance degradation. Accordingly, disclosed are systems and methods for deferring updating of free block data tracking structures using logs.

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Patent Owner(s)

  • NETAPP INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Khandelwal, Rajesh Sunnyvale, US 29 699
Pattabiraman, Jayalakshmi Sunnyvale, US 7 48
Singh, Rohit Cary, US 37 180
Yang, Jungsook Mountain View, US 1 20

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