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公开(公告)号：US09501242B2
公开(公告)日：2016-11-22
申请号：US14606078
申请日：2015-01-27
Applicant: International Business Machines Corporation
Inventor： Yong Hong Shi , Qian Su , Yu Sun , Wei You
CPC classification number: G06F3/0652 , G06F3/0623 , G06F3/0679 , G06F21/79 , G06F2206/1014 , G06F2221/2137 , G06F2221/2143
Abstract: Embodiments of the present disclosure provide a method and apparatus for storage control. The method comprises: in response to having received a data deletion command on sensitive data, marking a storage medium page where the sensitive data is located as invalid, and putting a storage medium block where the storage medium page is located in a garbage collection queue, wherein the storage medium block is a minimum unit of storage medium erasure in a SSD; determining a secure deletion time corresponding to the sensitive data; in response to a remaining time to a next garbage collection being longer than the secure deletion time corresponding to the sensitive data, setting a value of the remaining time as the secure deletion time; and triggering a garbage collection according to the remaining time. Using the solution according to the embodiment of the present disclosure, the security of the SSD can be enhanced.
Abstract translation: 本公开的实施例提供了一种用于存储控制的方法和装置。 该方法包括：响应于在敏感数据上接收到数据删除命令，将敏感数据所在的存储介质页面标记为无效，并将存储介质页面放置在垃圾回收队列中， 其中所述存储介质块是SSD中存储介质擦除的最小单位; 确定对应于敏感数据的安全删除时间; 响应于下一个垃圾收集的剩余时间比对应于敏感数据的安全删除时间长，将剩余时间的值设置为安全删除时间; 并根据剩余时间触发垃圾收集。 使用根据本公开的实施例的解决方案，可以提高SSD的安全性。
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Patent Agency Ranking
公开(公告)号：US10296426B2
公开(公告)日：2019-05-21
申请号：US15622108
申请日：2017-06-14
Applicant: International Business Machines Corporation
Inventor： Yong Hong Shi , Qian Su , Yu Sun , Wei You
Abstract: According to one aspect of the present invention, there is provided a method for performing storage control. Member storage media and a hot spare storage medium are identified in a storage system. The member storage media are members of a storage medium array, and the hot spare storage medium is for joining in the storage medium array when a member storage medium fails. Data on a member storage medium having a write amplification effect is migrated to the hot spare storage medium. In the member storage medium having a write amplification effect, an erase operation is performed on a storage medium where the migrated data is located. Embodiments of the present invention can alleviate adverse impact caused by a write amplification effect.
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公开(公告)号：US09996433B2
公开(公告)日：2018-06-12
申请号：US14685630
申请日：2015-04-14
Applicant: International Business Machines Corporation
Inventor： Yong Hong Shi , Qian Su , Yu Sun , Wei You
CPC classification number: G06F11/2038 , G06F11/1076 , G06F11/1451 , G06F11/1464 , G06F11/1662 , G06F11/2069 , G06F11/2094 , G06F2201/84 , G06F2211/1059
Abstract: According to one aspect of the present invention, there is provided a method for performing storage control. Member storage media and a hot spare storage medium are identified in a storage system. The member storage media are members of a storage medium array, and the hot spare storage medium is for joining in the storage medium array when a member storage medium fails. Data on a member storage medium having a write amplification effect is migrated to the hot spare storage medium. In the member storage medium having a write amplification effect, an erase operation is performed on a storage medium where the migrated data is located. Embodiments of the present invention can alleviate adverse impact caused by a write amplification effect.
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公开(公告)号：US20150212751A1
公开(公告)日：2015-07-30
申请号：US14606078
申请日：2015-01-27
Applicant: International Business Machines Corporation
Inventor： Yong Hong Shi , Qian Su , Yu Sun , Wei You
CPC classification number: G06F3/0652 , G06F3/0623 , G06F3/0679 , G06F21/79 , G06F2206/1014 , G06F2221/2137 , G06F2221/2143
Abstract: Embodiments of the present disclosure provide a method and apparatus for storage control. The method comprises: in response to having received a data deletion command on sensitive data, marking a storage medium page where the sensitive data is located as invalid, and putting a storage medium block where the storage medium page is located in a garbage collection queue, wherein the storage medium block is a minimum unit of storage medium erasure in a SSD; determining a secure deletion time corresponding to the sensitive data; in response to a remaining time to a next garbage collection being longer than the secure deletion time corresponding to the sensitive data, setting a value of the remaining time as the secure deletion time; and triggering a garbage collection according to the remaining time. Using the solution according to the embodiment of the present disclosure, the security of the SSD can be enhanced.
Abstract translation: 本公开的实施例提供了一种用于存储控制的方法和装置。 该方法包括：响应于在敏感数据上接收到数据删除命令，将敏感数据所在的存储介质页面标记为无效，并将存储介质页面放置在垃圾回收队列中， 其中所述存储介质块是SSD中存储介质擦除的最小单位; 确定对应于敏感数据的安全删除时间; 响应于下一个垃圾收集的剩余时间比对应于敏感数据的安全删除时间长，将剩余时间的值设置为安全删除时间; 并根据剩余时间触发垃圾收集。 使用根据本公开的实施例的解决方案，可以提高SSD的安全性。
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公开(公告)号：US20170277608A1
公开(公告)日：2017-09-28
申请号：US15622108
申请日：2017-06-14
Applicant: International Business Machines Corporation
Inventor： Yong Hong Shi , Qian Su , Yu Sun , Wei You
CPC classification number: G06F11/2038 , G06F11/1076 , G06F11/1451 , G06F11/1464 , G06F11/1662 , G06F11/2069 , G06F11/2094 , G06F2201/84 , G06F2211/1059
Abstract: According to one aspect of the present invention, there is provided a method for performing storage control. Member storage media and a hot spare storage medium are identified in a storage system. The member storage media are members of a storage medium array, and the hot spare storage medium is for joining in the storage medium array when a member storage medium fails. Data on a member storage medium having a write amplification effect is migrated to the hot spare storage medium. In the member storage medium having a write amplification effect, an erase operation is performed on a storage medium where the migrated data is located. Embodiments of the present invention can alleviate adverse impact caused by a write amplification effect.
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公开(公告)号：US20150309898A1
公开(公告)日：2015-10-29
申请号：US14685630
申请日：2015-04-14
Applicant: International Business Machines Corporation
Inventor： Yong Hong Shi , Qian Su , Yu Sun , Wei You
CPC classification number: G06F11/2038 , G06F11/1076 , G06F11/1451 , G06F11/1464 , G06F11/1662 , G06F11/2069 , G06F11/2094 , G06F2201/84 , G06F2211/1059
Abstract: According to one aspect of the present invention, there is provided a method for performing storage control. Member storage media and a hot spare storage medium are identified in a storage system. The member storage media are members of a storage medium array, and the hot spare storage medium is for joining in the storage medium array when a member storage medium fails. Data on a member storage medium having a write amplification effect is migrated to the hot spare storage medium. In the member storage medium having a write amplification effect, an erase operation is performed on a storage medium where the migrated data is located. Embodiments of the present invention can alleviate adverse impact caused by a write amplification effect.
Abstract translation: 根据本发明的一个方面，提供了一种用于执行存储控制的方法。 在存储系统中识别成员存储介质和热备用存储介质。 成员存储介质是存储介质阵列的成员，并且当备用存储介质故障时，热备用存储介质用于加入存储介质阵列。 具有写入放大效果的成员存储介质上的数据被迁移到热备用存储介质。 在具有写入放大效果的成员存储介质中，对迁移的数据所在的存储介质执行擦除操作。 本发明的实施例可以减轻由写入放大效应引起的不利影响。
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