公开(公告)号：US09696916B2

公开(公告)日：2017-07-04

申请号：US14862241

申请日：2015-09-23

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G06F3/06 ,  G06F12/02 ,  G11C16/34

CPC classification number: G06F3/0616 ,  G06F3/0619 ,  G06F3/0656 ,  G06F3/0659 ,  G06F3/0679 ,  G06F3/0688 ,  G06F12/0246 ,  G11C16/349 ,  G11C16/3495

Abstract: The present disclosure relates to examples of reducing memory write operations using coalescing memory buffers. In one example implementation according to aspects of the present disclosure, a method comprises computing a difference between a current state of data of at least one block of a storage device to which data is to be written and a state that would result from the write operation. The method further comprises populating at least one of one or more coalescing memory buffers with difference information associated with the difference and to be used to update an associated one of the blocks. Additionally, the method comprises selectively writing the difference information in the coalescing memory buffers to the storage devices, based on a determination of fullness of the coalescing memory buffers. The coalescing memory buffers are separate from the storage devices.

公开(公告)号：US20160342472A9

公开(公告)日：2016-11-24

申请号：US14821020

申请日：2015-08-07

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G06F11/10 ,  G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0613 ,  G06F3/0616 ,  G06F3/064 ,  G06F3/065 ,  G06F3/0659 ,  G06F3/0661 ,  G06F3/0688 ,  G06F3/0689 ,  G06F11/1072 ,  G06F11/1076 ,  G06F11/108 ,  G06F12/00 ,  G06F12/0246 ,  G06F13/1668 ,  G06F2211/1073 ,  G06F2211/1092 ,  G06F2211/1095 ,  G11C29/52

Abstract: The present disclosure relates to techniques for providing data redundancy after reducing memory writes. In one example implementation according to aspects of the present disclosure, a storage controller receives a storage command for providing data redundancy in accordance with a first data redundancy scheme. The storage controller then translates the storage command for providing the data redundancy in accordance with a second data redundancy scheme.

公开(公告)号：US09323666B2

公开(公告)日：2016-04-26

申请号：US14862195

申请日：2015-09-23

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G11C7/00 ,  G06F12/02

CPC classification number: G06F3/0616 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/0649 ,  G06F3/0652 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/0673 ,  G06F11/1072 ,  G06F12/023 ,  G06F12/0246 ,  G06F2212/1044 ,  G06F2212/7201 ,  G06F2212/7202 ,  G06F2212/7205 ,  G06F2212/7211 ,  G11C14/009 ,  G11C16/10 ,  G11C16/14 ,  G11C16/26 ,  G11C16/349 ,  G11C16/3495 ,  G11C17/00 ,  G11C29/04 ,  G11C29/52

Abstract: The present disclosure relates to examples of controlling recycling of blocks of memory. In one example implementation according to aspects of the present disclosure, a method comprises determining whether to reclaim one or more blocks of a memory. The method further comprises allocating at least one of the blocks to be written in accordance with the equalizing, in response to the determining, and selected from a subset of the blocks, wherein a respective lifetime factor is below a threshold set prior to the allocating.

Abstract translation: 本公开涉及控制存储器块的再循环的示例。 在根据本公开的方面的一个示例实现中，一种方法包括确定是否回收存储器的一个或多个块。 该方法还包括响应于确定并从块的子集中选择来分配要写入的块中的至少一个，其中相应的寿命因子低于在分配之前设置的阈值。

公开(公告)号：US20160062684A1

公开(公告)日：2016-03-03

申请号：US14936638

申请日：2015-11-09

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G06F3/06

CPC classification number: G06F3/0616 ,  G06F3/0608 ,  G06F3/064 ,  G06F3/0641 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2212/1036 ,  G06F2212/1044 ,  G06F2212/401 ,  G06F2212/7204 ,  G06F2212/7205 ,  G06F2212/7206

Abstract: A method including increasing spare space in a storage subsystem including a flash memory, wherein the storage subsystem includes compressed data stored in the flash memory; extending a lifetime of the storage subsystem to achieve a stored selected minimum lifetime, based at least in part as a result of the increasing spare space; identifying at least one aspect associated with the lifetime of the storage subsystem; and delaying, based at least upon one identified aspect, at least one operation that reduces the lifetime of the storage subsystem, wherein the delaying at least one operation includes delaying a command that initiates the at least one operation.

Abstract translation: 一种包括增加包括闪速存储器的存储子系统中的备用空间的方法，其中所述存储子系统包括存储在所述闪存中的压缩数据; 至少部分地由于增加的备用空间而延长存储子系统的寿命以实现存储的所选择的最小寿命; 识别与所述存储子系统的寿命相关联的至少一个方面; 并且至少基于一个识别的方面延迟至少一个减少存储子系统的寿命的操作，其中所述延迟至少一个操作包括延迟启动所述至少一个操作的命令。

公开(公告)号：US20160011974A1

公开(公告)日：2016-01-14

申请号：US14862195

申请日：2015-09-23

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G06F12/02

CPC classification number: G06F3/0616 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/0649 ,  G06F3/0652 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/0673 ,  G06F11/1072 ,  G06F12/023 ,  G06F12/0246 ,  G06F2212/1044 ,  G06F2212/7201 ,  G06F2212/7202 ,  G06F2212/7205 ,  G06F2212/7211 ,  G11C14/009 ,  G11C16/10 ,  G11C16/14 ,  G11C16/26 ,  G11C16/349 ,  G11C16/3495 ,  G11C17/00 ,  G11C29/04 ,  G11C29/52

Abstract: The present disclosure relates to examples of controlling recycling of blocks of memory. In one example implementation according to aspects of the present disclosure, a method comprises determining whether to reclaim one or more blocks of a memory. The method further comprises allocating at least one of the blocks to be written in accordance with the equalizing, in response to the determining, and selected from a subset of the blocks, wherein a respective lifetime factor is below a threshold set prior to the allocating.

公开(公告)号：US09170742B2

公开(公告)日：2015-10-27

申请号：US14201020

申请日：2014-03-07

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G06F12/02 ,  G06F3/06 ,  G11C16/34

CPC classification number: G06F3/0616 ,  G06F3/0619 ,  G06F3/0656 ,  G06F3/0659 ,  G06F3/0679 ,  G06F3/0688 ,  G06F12/0246 ,  G11C16/349 ,  G11C16/3495

Abstract: A system, method, and computer program product are provided for reducing write operations in memory. In use, write operations to be performed on data stored in memory are identified. A difference is then determined between results of the write operations and the data stored in the memory. Difference information associated with the difference is stored in the memory. To this end, the write operations may be reduced, utilizing the difference information.

Abstract translation: 提供了一种用于减少存储器中的写入操作的系统，方法和计算机程序产品。 在使用中，识别对存储在存储器中的数据执行的写入操作。 然后在写入操作的结果和存储在存储器中的数据之间确定差异。 与差异相关的差异信息存储在存储器中。 为此，可以利用差异信息来减少写入操作。

公开(公告)号：US09165682B2

公开(公告)日：2015-10-20

申请号：US14247399

申请日：2014-04-08

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G11C7/02 ,  G11C29/04 ,  G11C16/34 ,  G06F12/02

CPC classification number: G06F3/0616 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/0649 ,  G06F3/0652 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/0673 ,  G06F11/1072 ,  G06F12/023 ,  G06F12/0246 ,  G06F2212/1044 ,  G06F2212/7201 ,  G06F2212/7202 ,  G06F2212/7205 ,  G06F2212/7211 ,  G11C14/009 ,  G11C16/10 ,  G11C16/14 ,  G11C16/26 ,  G11C16/349 ,  G11C16/3495 ,  G11C17/00 ,  G11C29/04 ,  G11C29/52

Abstract: In operation, respective lifetime expectancy scores are calculated for each of a plurality of blocks of a memory based on a respective count percentage of free space of each of the blocks. The blocks are recycled based on at least some of the life expectancy scores. A total amount of the blocks that are re-written is minimized while equalizing lifetime expectancy score variation between the blocks.

Abstract translation: 在操作中，基于每个块的自由空间的相应计数百分比，为存储器的多个块中的每一个计算各自的寿命期望得分。 基于至少一些预期寿命得分来回收块。 重新写入的块的总量被最小化，同时平均块之间的预期寿命得分变化。

公开(公告)号：US10318181B2

公开(公告)日：2019-06-11

申请号：US15472878

申请日：2017-03-29

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G06F12/02 ,  G06F3/06

Abstract: Methods, systems and computer-readable storage media for increasing spare space in a storage subsystem including a flash memory, extending a lifetime of the storage subsystem to achieve a stored selected minimum lifetime based at least in part as a result of the increasing spare space, and identifying at least one aspect associated with the lifetime of the storage subsystem. The storage subsystem may include compressed data stored in the flash memory.

公开(公告)号：US10230406B2

公开(公告)日：2019-03-12

申请号：US14594165

申请日：2015-01-11

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Hao Zhong ,  Yan Li ,  Radoslav Danilak ,  Earl T. Cohen

IPC: H03M13/00 ,  H03M13/37 ,  G11C11/56 ,  G11C16/10 ,  G11C16/26 ,  H03M13/11 ,  G06F11/10 ,  G06F3/06 ,  G11C29/52

Abstract: A Solid-State Disk (SSD) controller uses LDPC decoding to enable flash memory accesses with improved latency and/or error correction capabilities. With SLC flash memory having a BER less than a predetermined value, the SSD controller uses a 1-bit read (single read) hard-decision LDPC decoder to access the flash memory. If the hard-decision LDPC decoder detects an uncorrectable error, then the SSD controller uses a 1.5-bit read (two reads) erasure-decision LDPC decoder to access the flash memory. With flash memory having a raw BER between two other predetermined values, the SSD controller omits the use of the hard-decision LDPC decoder and uses only the erasure-decision LDPC decoder to access the flash memory. Variations of the SSD controller similarly access MLC flash memory. Some SSD controllers dynamically switch between hard-decision and erasure-based decoders based on dynamic decoder selection criteria.

公开(公告)号：US09489303B2

公开(公告)日：2016-11-08

申请号：US15138064

申请日：2016-04-25

Applicant: Seagate Technology LLC

Inventor： Radoslav Danilak

IPC: G11C11/00 ,  G06F12/02 ,  G11C16/14 ,  G11C16/10 ,  G11C16/26 ,  G11C29/52 ,  G06F11/10 ,  G11C14/00 ,  G11C17/00

CPC classification number: G06F3/0616 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/064 ,  G06F3/0649 ,  G06F3/0652 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/0673 ,  G06F11/1072 ,  G06F12/023 ,  G06F12/0246 ,  G06F2212/1044 ,  G06F2212/7201 ,  G06F2212/7202 ,  G06F2212/7205 ,  G06F2212/7211 ,  G11C14/009 ,  G11C16/10 ,  G11C16/14 ,  G11C16/26 ,  G11C16/349 ,  G11C16/3495 ,  G11C17/00 ,  G11C29/04 ,  G11C29/52

Abstract: The present disclosure relates to examples of controlling recycling of blocks of memory. In one example implementation according to aspects of the present disclosure, a method comprises determining whether to reclaim one or more blocks of a memory. The method further comprises allocating at least one of the blocks to be written in accordance with the equalizing, in response to the determining, and selected from a subset of the blocks, wherein a respective lifetime factor is below a threshold set prior to the allocating.