ZFS 的 dedupe 工具

Slashdot 上看到 ZFS 也在發展 block-level dedupe 的工具:「ZFS Gets Built-In Deduplication」。這東西應該已經有一票軟體專利在前面阻撓,尤其是 SAN 廠商手上應該都有不少這類型的專利...

Block-level Data Deduplication 指的是重複的 block 區塊可以用 reference 紀錄,而非複製完整的 block。等到有修改時再複製修改,也就是 Copy-on-write

在維基百科的頁面記載了:

ExaGrid's patented byte-level deduplication (content aware), NEC's HydraStor (Content Aware Deduplication Technology) , IBM's ProtecTier, Quantum, EMC/Data Domain, Symantec NetBackup PureDisk, EMC Avamar, Sepaton, FalconStor VTL, SIR, FDS (Virtual Tape Library, Single Instance Repository, and File Deduplication System) are some notable names.

應該會有人跳出來告吧?還是 SunOracle 手上跟這些廠商有神秘的 agreement?

Leave a Reply

Your email address will not be published. Required fields are marked *