Invention Grant
- Patent Title: Storage apparatus configured to manage a conversion table according to a request from a host
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Application No.: US17008529Application Date: 2020-08-31
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Publication No.: US11341042B2Publication Date: 2022-05-24
- Inventor: Mitsunori Tadokoro
- Applicant: KIOXIA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KIOXIA CORPORATION
- Current Assignee: KIOXIA CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Kim & Stewart LLP
- Priority: JPJP2020-049112 20200319
- Main IPC: G06F12/02
- IPC: G06F12/02 ; G06F12/0871 ; G06F13/16 ; G06F12/0831

Abstract:
A storage apparatus includes a storage device that stores a table mapping a logical address to a physical address and a controller that manages the table and controls write of data to and read of data from the storage device according to a request from a host. The controller allocates, in a memory, a cache area for temporarily storing a part of the table, and a write buffer area for storing a part of the table that has been updated by the host and is to be written to the storage device, upon receipt of a request that requires update of the table from the host, determines whether a first part of the table to be updated is in the write buffer area, and upon determining that the first part is in the write buffer area, updates the first part in the write buffer area according to the request.
Public/Granted literature
- US20210294738A1 STORAGE APPARATUS, CONTROL METHOD, AND STORAGE SYSTEM Public/Granted day:2021-09-23
Information query