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Endurance enhancement scheme using memory re-evaluation

專利號(hào)
US11176036B2
公開日期
2021-11-16
申請(qǐng)人
International Business Machines Corporation(US NY Armonk)
發(fā)明人
Charles J. Camp; Timothy J. Fisher; Aaron D. Fry; Nikolas Ioannou; Ioannis Koltsidas; Roman A. Pletka; Sasa Tomic
IPC分類
G06F12/00; G06F12/02
技術(shù)領(lǐng)域
memory,block,may,in,or,be,storage,retire,volatile,stripe
地域: NY NY Armonk

摘要

An apparatus, according to one embodiment, includes non-volatile memory configured to store data, and a controller and logic integrated with and/or executable by the controller, the logic being configured to: determine, by the controller, that at least one block of the non-volatile memory and/or portion of a block of the non-volatile memory meets a retirement condition, re-evaluate, by the controller, the at least one block and/or the portion of a block to determine whether to retire the at least one block and/or the portion of a block, indicate, by the controller, that the at least one block and/or the portion of a block remains usable when a result of the re-evaluation is not to retire the block, and indicate, by the controller, that the at least one block and/or the portion of a block is retired when the result of the re-evaluation is to retire the block.

說明書

The processor system 700 shown in FIG. 7 includes a Random Access Memory (RAM) 714, Read Only Memory (ROM) 716, and an I/O adapter 718. According to some embodiments, which are in no way intended to limit the invention, I/O adapter 718 may include any of the embodiments described above with reference to I/O adapter 218 of FIG. 2. Referring still to processor system 700 of FIG. 7, the aforementioned components 714, 716, 718 may be used for connecting peripheral devices such as storage subsystem 720 to the bus 712. In some embodiments, storage subsystem 720 may include a similar and/or the same configuration as data storage system 220 of FIG. 2. According to an example, which is in no way intended to limit the invention, storage subsystem 720 may include non-volatile data storage cards, e.g., having Flash memory cards, RAM, ROM, and/or some other known type of non-volatile memory, in addition to RAID controllers as illustrated in FIG. 2.

With continued reference to FIG. 7, a user interface adapter 722 for connecting a keyboard 724, a mouse 726, a speaker 728, a microphone 732, and/or other user interface devices such as a touch screen, a digital camera (not shown), etc., to the bus 712.

Processor system 700 further includes a communication adapter 734 which connects the processor system 700 to a communication network 735 (e.g., a data processing network) and a display adapter 736 which connects the bus 712 to a display device 738.

權(quán)利要求

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