DATA STORING APPARATUS, AND DATA STORING METHOD

摘要

A data storage apparatus includes a processor that executes a process. the process includes: storing data sequentially input by sequentially repeating overwriting in blocks not determined as protection targets among a plurality of blocks in a storage area of a storage unit, each block having an upper limit in number of data rewrites; registering, upon detection of a protection trigger for giving an instruction to protect data, protection information for giving an instruction to protect data and block information indicating a block that stores data obtained a predetermined time before the detection of the protection trigger, in stored data; and managing, as blocks to be protected, blocks from the block that stores the data obtained the predetermined time before the detection to a block that stores data upon detection of a termination trigger for giving an instruction to terminate protection.

主权项

1. A data storage apparatus comprising:
a processor that executes a process, the process comprising:
storing data sequentially input by sequentially repeating overwriting in blocks not determined as protection targets among a plurality of blocks in a storage area of a storage unit, each block having an upper limit in number of data rewrites;registering, upon detection of a protection trigger for giving an instruction to protect data, protection information for giving an instruction to protect data and block information indicating a block that stores data obtained a predetermined time before the detection of the protection trigger, in stored data; andmanaging, as blocks to be protected, blocks from the block that stores the data obtained the predetermined time before the detection to a block that stores data upon detection of a termination trigger for giving an instruction to terminate protection.