View source for 20250173310. Storage System Data (Hitachi Vantara, .)

= STORAGE SYSTEM AND DATA PROCESSING METHOD =

'''Abstract''':
a processor uses a snapshot virtual device as a storage destination for data of a primary volume and a snapshot volume, compresses data stored in the snapshot virtual device and stores the compressed data in a compression virtual device, and stores the data stored in the compression virtual device in a storage device. when a write request is received from a host, the processor switches, according to a size of an address range of a write destination, between overwriting processing of overwriting an area on the snapshot virtual device which is allocated to large-size data and new allocation processing of allocating a new area on the snapshot virtual device to the address range of the write destination for small-size data, and compresses a plurality of pieces of small-size data stored in the new area and collectively stores the plurality of pieces of small-size data in the compression virtual device.

'''Inventor(s)''': [[:Category:Yoshihiro YOSHII of Tokyo  JP|Yoshihiro YOSHII]], [[:Category:Takashi NAGAO of Tokyo  JP|Takashi NAGAO]], [[:Category:Tomohiro YOSHIHARA of Tokyo  JP|Tomohiro YOSHIHARA]]

'''CPC Classification''': [[:Category:CPC_G06F16/128|G06F16/128]] ({Details of file system snapshots on the file-level, e.g. snapshot creation, administration, deletion  (use of snapshots for error detection or correction , )})


[[Category:Patent Applications]]
[[Category:Hitachi Vantara, Ltd.]]
[[Category:CPC_G06F16/128]]
[[Category:Yoshihiro YOSHII of Tokyo  JP]]
[[Category:Takashi NAGAO of Tokyo  JP]]
[[Category:Tomohiro YOSHIHARA of Tokyo  JP]]

[https://wikipatents.org/index.php?search=20250173310+rejection&title=Special%3ASearch&wprov=acrw1_-1 Search for rejections for patent application number 20250173310]


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