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AssigneeHitachi Global Storage Technologies Netherlands B. V.
InventorsZvonimir Z. Bandic, Cyril Guyot, Tomohiro Harayama, Hitoshi Kamei, Takaki Nakamura, Timothy Tsai
Estimating the term…
A method and a storage system are provided for implementing a sustained large block random write performance mechanism for shingled magnetic recording (SMR) drives in a redundant array of inexpensive disks (RAID). A Solid State Drive (SSD) is provided with the SMR drives in the RAID. The SSD is used in a hot spare mode, which is activated when a large block random-write event is identified for a SMR drive in the RAID. In the hot spare mode, the SSD temporarily receives new incoming writes for the identified SMR drive. Then the identified SMR drive is updated from the SSD to restore the state of the identified SMR drive, and operations continue with normal writing only using the SMR drives in the RAID.
A method for implementing a sustained large block random write performance mechanism for shingled magnetic recording (SMR) drives in a redundant array of inexpensive disks (RAID) comprising:
An apparatus for implementing a sustained large block random write performance mechanism for shingled magnetic recording (SMR) drives in a redundant array of inexpensive disks (RAID comprising:
A data storage system comprising:
Dependencies are inferred from the claim text.