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公开(公告)号：US08180987B2
公开(公告)日：2012-05-15
申请号：US12371868
申请日：2009-02-16
IPC分类号： G06F12/14
CPC分类号： G06F21/80
摘要： Control of the encryption of data for storage with respect to removable data storage cartridges having a recording media and having cartridge memory with at least a portion lockable to read-only, employs the steps of inspecting the read-only portion of the cartridge memory of the removable data storage cartridge for an “Encrypt-Only” flag. If the “Encrypt-Only” flag is present, writes to the recording media of the removable data storage cartridge are limited to data in an encrypted format, if any; and, else, writes to the recording media of the removable data storage cartridge are allowed for data in any of encrypted and unencrypted formats.
摘要翻译： 控制对于具有记录介质的可移动数据存储盒存储的数据的加密，并且具有至少部分可被锁定为只读的盒存储器，采用以下步骤来检查盒式存储器的只读部分： 可移动数据存储盒，用于“仅加密”标志。 如果存在“仅加密”标志，则对可移动数据存储盒的记录介质的写入仅限于加密格式的数据（如果有的话）; 并且否则，允许对可移动数据存储盒的记录介质的写入以任何加密和未加密格式的数据。
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公开(公告)号：US08176269B2
公开(公告)日：2012-05-08
申请号：US12165540
申请日：2008-06-30
IPC分类号： G06F12/00
CPC分类号： G06F3/0641 , G06F3/0608 , G06F3/0689 , G06F12/0261 , G06F17/3015
摘要： Provided are a method, system, and article of manufacture for managing metadata for data blocks used in a deduplication system. File metadata is maintained for files having data blocks in a computer readable device. Data block metadata is maintained for each data block in the computer readable device. The data block metadata for one data block includes a data block reference and content identifier identifying content of the data block. The file metadata for each file includes the data block reference to each data block in the file. A determination is made of an unreferenced data block in the computer readable device that has become unreferenced. Indication is made that the data block metadata for the determined unreferenced data block as unreferenced metadata. The data block reference of the unreferenced metadata is maintained in the computer readable device in response to determining that a includes the data block indicated in the unreferenced metadata.
摘要翻译： 提供了一种用于管理在重复数据删除系统中使用的数据块的元数据的方法，系统和制品。 对于具有计算机可读设备中的数据块的文件，维护文件元数据。 为计算机可读设备中的每个数据块维护数据块元数据。 一个数据块的数据块元数据包括数据块参考和识别数据块内容的内容标识符。 每个文件的文件元数据包括对文件中每个数据块的数据块引用。 确定未被参考的计算机可读设备中的未引用的数据块。 指示将所确定的未引用的数据块的数据块元数据作为未引用的元数据。 响应于确定包括未引用的元数据中指示的数据块，将未引用的元数据的数据块引用保持在计算机可读设备中。
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公开(公告)号：US20120102335A1
公开(公告)日：2012-04-26
申请号：US13343648
申请日：2012-01-04
IPC分类号： G06F12/14
CPC分类号： H04L9/0891 , H04L9/0822 , H04L9/083
摘要： Provided are a method, system, and article of manufacture for rekeying encryption keys for removable storage media. A rekey request is received for a coupled removable storage media, wherein encryption on the coupled removable storage media uses a first key and wherein the rekey request indicates a second key. The first key and the second key are accessed in response to the rekey request. The first key is used to perform decryption for the coupled removable storage media and the second key is used to perform encryption for the coupled removable storage media.
摘要翻译： 提供了用于对用于可移动存储介质的加密密钥进行密钥密钥的方法，系统和制品。 接收到用于耦合的可移动存储介质的重新密钥请求，其中在所耦合的可移动存储介质上的加密使用第一密钥，并且其中重新密钥请求指示第二密钥。 响应重新密钥请求访问第一个密钥和第二个密钥。 第一个密钥用于对耦合的可移动存储介质执行解密，第二个密钥用于对耦合的可移动存储介质执行加密。
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公开(公告)号：US08122300B2
公开(公告)日：2012-02-21
申请号：US12703499
申请日：2010-02-10
IPC分类号： G06F11/00
CPC分类号： G11B20/18 , G11B2220/655 , G11B2220/90
摘要： A non-volatile redundant verifiable indication of data storage status is provided with respect to data storage operations conducted with respect to removable data storage media, and store the indication with an auxiliary non-volatile memory of the data storage media, such that the indication stays with the media. At least one state value indicating the status of the data storage operation is written to one page of the auxiliary non-volatile memory, and a redundancy check is provided with respect to at least the written state value of the one page of the auxiliary non-volatile memory; and the same state value is written to a second page of the auxiliary non-volatile memory, and a redundancy check is provided with respect to at least the written state value of the second page of the auxiliary non-volatile memory. The redundancy checks indicate the validity of the state values.
摘要翻译： 提供关于可移动数据存储介质执行的数据存储操作的数据存储状态的非易失性冗余可验证指示，并且用数据存储介质的辅助非易失性存储器存储指示，使得指示保持 与媒体。 指示数据存储操作的状态的至少一个状态值被写入辅助非易失性存储器的一页，并且至少相对于辅助非易失性存储器的一页的写入状态值提供冗余校验， 易失性记忆 并且将相同的状态值写入辅助非易失性存储器的第二页，并且至少相对于辅助非易失性存储器的第二页的写入状态值提供冗余校验。 冗余检查表明状态值的有效性。
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公开(公告)号：US07934247B2
公开(公告)日：2011-04-26
申请号：US11530011
申请日：2006-09-07
IPC分类号： G06F17/30
摘要： Provided are techniques for determining whether to encrypt data. It is determined whether an element is to be encrypted based on an encryption policy, wherein the element comprises one of metadata and a data set. In response to determining that the element is to be encrypted, the element is encrypted and written to a data storage medium. In response to determining that the element is not to be encrypted, the element is written in the effective clear to the data storage medium.
摘要翻译： 提供了用于确定是否加密数据的技术。 确定是否要基于加密策略来加密元素，其中元素包括元数据和数据集之一。 响应于确定元素被加密，元素被加密并写入数据存储介质。 响应于确定元素不被加密，元素被有效地写入数据存储介质。
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公开(公告)号：US07921294B2
公开(公告)日：2011-04-05
申请号：US11530009
申请日：2006-09-07
IPC分类号： H04L9/00
CPC分类号： H04L9/3247
摘要： Provided are a method, system, and article of manufacture in which a non-reversible signature of a symmetric cryptographic key is computed, wherein the symmetric cryptographic key is used to symmetrically encrypt data at rest in a storage device. The non-reversible signature is stored in association with the symmetrically encrypted data at rest in the storage device. The non-reversible signature is used to determine validity of a cryptographic key provided by a host for accessing the symmetrically encrypted data at rest in the storage device.
摘要翻译： 提供了一种方法，系统和制品，其中计算对称加密密钥的不可逆签名，其中对称加密密钥用于对对称地加密存储设备中休息的数据。 与静止在存储设备中的对称加密数据相关联地存储非可逆签名。 非可逆签名用于确定由主机提供的密码密钥的有效性，用于在存储设备中休息时访问对称加密的数据。
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公开(公告)号：US20100208380A1
公开(公告)日：2010-08-19
申请号：US12371868
申请日：2009-02-16
CPC分类号： G06F21/80
摘要： Control of the encryption of data for storage with respect to removable data storage cartridges having a recording media and having cartridge memory with at least a portion lockable to read-only, employs the steps of inspecting the read-only portion of the cartridge memory of the removable data storage cartridge for an “Encrypt-Only” flag. If the “Encrypt-Only” flag is present, writes to the recording media of the removable data storage cartridge are limited to data in an encrypted format, if any; and, else, writes to the recording media of the removable data storage cartridge are allowed for data in any of encrypted and unencrypted formats.
摘要翻译： 控制对于具有记录介质的可移动数据存储盒存储的数据的加密，并且具有至少部分可被锁定为只读的盒存储器，采用以下步骤来检查盒式存储器的只读部分： 可移动数据存储盒，用于“仅加密”标志。 如果存在“仅加密”标志，则对可移动数据存储盒的记录介质的写入仅限于加密格式的数据（如果有的话）; 并且否则，允许对可移动数据存储盒的记录介质的写入以任何加密和未加密格式的数据。
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公开(公告)号：US07760821B2
公开(公告)日：2010-07-20
申请号：US11558949
申请日：2006-11-13
申请人： Giovanni Cherubini , Evangelos S. Eleftheriou , Robert Allen Hutchins , Glen Alan Jaquette , Sedat Oelcer
发明人： Giovanni Cherubini , Evangelos S. Eleftheriou , Robert Allen Hutchins , Glen Alan Jaquette , Sedat Oelcer
IPC分类号： H04L27/06
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10212 , H04B1/7085 , H04J2013/0037 , H04L25/0212 , H04L25/03038
摘要： Methods, apparatus and computer programs are provided for multiplication-free identification of the impulse response of an oversampled data channel. An input comprising a pseudo-random binary sequence of L symbols is supplied to the channel at a symbol rate of 1/T. A channel output is produced by sampling a channel output signal corresponding to the input with a sampling interval TS=(q/p)T, where q and p are relative prime integers with q
摘要翻译： 提供了方法，装置和计算机程序，用于对过采样数据信道的脉冲响应进行无乘法识别。 将包含L个符号的伪随机二进制序列的输入以符号率1 / T提供给信道。 通过以采样间隔TS =（q / p）T对与输入相对应的信道输出信号进行采样来产生信道输出，其中q和p是具有q
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59.发明授权Apparatus, system, and method for limiting frame spacing error during timing-based servo pattern fabrication 有权在基于定时的伺服模式制造期间限制帧间隔误差的装置，系统和方法公开(公告)号：US07684143B2
公开(公告)日：2010-03-23
申请号：US12040531
申请日：2008-02-29
申请人： Glen Alan Jaquette
发明人： Glen Alan Jaquette
CPC分类号： G11B5/584
摘要： An apparatus, system and method to limit frame spacing error during timing-based servo pattern fabrication. An apparatus in accordance with the invention may include a first servo write head to simultaneously write servo stripes onto a first servo frame of a magnetic tape, and a second servo write head to simultaneously write servo stripes onto a successive servo frame of the magnetic tape. The first and second servo write heads may write the stripes substantially concurrently to minimize spacing error between the frames.
摘要翻译： 一种在基于定时的伺服模式制造期间限制帧间隔误差的装置，系统和方法。 根据本发明的装置可以包括：第一伺服写头，用于同时将伺服条纹写入到磁带的第一伺服帧上;以及第二伺服写头，以将伺服条同时写入到磁带的连续伺服帧上。 第一和第二伺服写入头可以基本同时地写入条带以最小化帧之间的间隔误差。
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公开(公告)号：US20090052665A1
公开(公告)日：2009-02-26
申请号：US11841490
申请日：2007-08-20
CPC分类号： G06F21/78
摘要： A system and a computer program product are disclosed for eliminating access to data on removable storage media of a removable storage media cartridge. The system comprises a data storage drive that stores a key on the removable storage media cartridge, such that data on the removable storage media is accessible with the key. Upon receiving a command to eliminate access to data on the removable storage media the data storage drive shreds the key such that access to data on the removable storage media is eliminated.
摘要翻译： 公开了一种用于消除对可移动存储介质盒的可移动存储介质上的数据的访问的系统和计算机程序产品。 该系统包括将密钥存储在可移动存储介质盒上的数据存储驱动器，使得可移动存储介质上的数据可通过密钥访问。 在接收到用于消除对可移动存储介质上的数据的访问的命令时，数据存储驱动器切割该密钥，从而消除对可移动存储介质上的数据的访问。
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