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41. 发明授权

US08107621B2 Encrypted file system mechanisms 有权
标题翻译：加密文件系统机制
公开(公告)号：US08107621B2
公开(公告)日：2012-01-31
申请号：US12194610
申请日：2008-08-20
申请人： Ufuk Celikkan , William C. Conklin , Shawn P. Mullen , Ravi A. Shankar
发明人： Ufuk Celikkan , William C. Conklin , Shawn P. Mullen , Ravi A. Shankar
IPC分类号： H04L9/14
CPC分类号： G06F21/602 , G06F21/6218 , H04L9/0637
摘要： Mechanisms for providing an encrypted file system are provided. The mechanisms use a combination of encryption methodologies so as to reduce the amount of decryption and re-encryption that is necessary to a file in the Encrypted File System in the event that the file needs to be modified. The encryption methodologies are interleaved, or alternated, with regard to each block of plaintext. In one illustrative embodiment, Plaintext Block Chaining (PBC) and Cipher Block Chaining (CBC) encryption methodologies are alternated for encrypting a sequence of blocks of data. The encryption of a block of plaintext is dependent upon the plaintext or a cipher generated for the plaintext of a previous block of data in the sequence of blocks of data so that the encryption is more secure than known Electronic Code Book encryption methodologies.
摘要翻译：提供了提供加密文件系统的机制。这些机制使用加密方法的组合，以便在需要修改文件的情况下减少加密文件系统中的文件所需的解密和重新加密的数量。关于每个明文块，加密方法被交织或交替。在一个说明性实施例中，替代了明文块链接（PBC）和密码块链接（CBC）加密方法来加密数据块序列。明文块的加密取决于明文或为数据块序列中的先前数据块的明文生成的密码，使得加密比已知的电子代码簿加密方法更安全。

42. 发明申请

US20100325471A1 HIGH AVAILABILITY SUPPORT FOR VIRTUAL MACHINES 有权
标题翻译：虚拟机的高可用性支持
公开(公告)号：US20100325471A1
公开(公告)日：2010-12-23
申请号：US12486332
申请日：2009-06-17
申请人： Rajeev Mishra , Lance Warren Russell , Ravi A. Shankar
发明人： Rajeev Mishra , Lance Warren Russell , Ravi A. Shankar
IPC分类号： G06F11/14 , G06F12/16 , G06F9/455
CPC分类号： G06F11/1438 , G06F11/1484 , G06F11/203 , G06F11/2035
摘要： A computer implemented method, a tangible computer storage medium, and a data processing system provide high availability support for virtual machines in a logical partitioned platform. A monitoring system detect a failure in the virtual machine. Partition management firmware then restarts the virtual machine in a consistency failover image node utilizing a consistency failover image. If a subsequent failure of the virtual machine is detected within a predetermined time, partition management firmware restarts the virtual machine in a boot failover image node utilizing a boot failover image.
摘要翻译：计算机实现的方法，有形计算机存储介质和数据处理系统为逻辑分区平台中的虚拟机提供高可用性支持。监控系统检测虚拟机故障。分区管理固件然后使用一致性故障转移映像重新启动一个一致故障转移映像节点中的虚拟机。如果在预定时间内检测到虚拟机的后续故障，则分区管理固件使用引导故障切换映像重新启动引导故障转移映像节点中的虚拟机。

43. 发明申请

US20090077661A1 Method and Apparatus for the Reliability of Host Data Stored on Fibre Channel Attached Storage Subsystems 有权
标题翻译：用于存储在光纤通道附加存储子系统上的主机数据的可靠性的方法和装置
公开(公告)号：US20090077661A1
公开(公告)日：2009-03-19
申请号：US12276879
申请日：2008-11-24
申请人： James Patrick Allen , Thomas Stanley Mathews , Ravi A. Shankar , Satya Prakash Sharma , Glenn Rowan Wightwick
发明人： James Patrick Allen , Thomas Stanley Mathews , Ravi A. Shankar , Satya Prakash Sharma , Glenn Rowan Wightwick
IPC分类号： G06F21/00
CPC分类号： G11B20/1813
摘要： A method for improving the reliability of host data stored on Fibre Channel attached storage subsystems by performing end-to-end data integrity checks. When a read or write operation is initiated, an initial checksum for data in the read/write operation is generated and associated with the data, wherein the association exists through a plurality of layers of software and attached storage subsystems. The initial checksum is passed with the data in the read/write path. When a layer of software in the read/write path receives the initial checksum and data, the layer performs an integrity check of the data, which includes generating another checksum and comparing it to the initial checksum. If the checksums do not match, the read/write operation fails and the error is logged. If the checksums match, the integrity check is repeated through each layer in the read/write path to enable detecting data corruption at the point of source.
摘要翻译：通过执行端到端数据完整性检查来提高存储在光纤通道附加存储子系统上的主机数据的可靠性的方法。当启动读或写操作时，生成读/写操作中的数据的初始校验和并与数据相关联，其中通过多层软件和附加的存储子系统存在关联。初始校验和与读/写路径中的数据一起传递。当读/写路径中的软件层接收初始校验和和数据时，该层执行数据的完整性检查，其中包括生成另一个校验和并将其与初始校验和进行比较。如果校验和不匹配，则读/写操作失败，并记录错误。如果校验和匹配，则通过读/写路径中的每个层重复完整性检查，以便能够在源点检测数据损坏。

44. 发明授权

US07424584B2 Key-controlled object-based memory protection 有权
标题翻译：基于键控的基于对象的内存保护
公开(公告)号：US07424584B2
公开(公告)日：2008-09-09
申请号：US10916981
申请日：2004-08-12
申请人： Thomas S. Mathews , Bruce Mealey , Pratap Chandra Pattnaik , Ravi A. Shankar
发明人： Thomas S. Mathews , Bruce Mealey , Pratap Chandra Pattnaik , Ravi A. Shankar
IPC分类号： G06F12/00 , G06F9/26
CPC分类号： G06F12/1466
摘要： A method, system, and program key-controlled object-based memory protection are provided. A processing unit includes an authority check for controlling access by the processing unit to pages of memory according to whether a hardware protection key set currently loaded in an authority mask register allows access to the pages. In particular, each page of memory is assigned a page key number that indexes into the hardware protection key set. The currently loaded hardware protection key set specifies those page key numbers that are currently accessible to the processing unit for the execution context. Each hardware key within the hardware protection key set may be associated with a particular data object or group of data objects. Thus, effectively, the currently loaded hardware protection key set identifies which data objects or groups of data objects are currently accessible. Software keys are assigned to data objects and dynamically mapped to hardware protection key sets, such that when a module is called, the software keys assigned to that module are mapped to the hardware protection key set to be loaded for controlling current access to memory.
摘要翻译：提供了一种方法，系统和程序按键控制的基于对象的存储器保护。处理单元包括根据当前加载在权限掩码寄存器中的硬件保护密钥组是否允许访问页面的权限检查，用于控制由处理单元访问存储器页面的权限。特别地，每个存储器页面被分配一个索引到硬件保护密钥集中的页面密钥号码。当前加载的硬件保护密钥集指定处理单元当前可用于执行上下文的那些页面密钥号码。硬件保护密钥组内的每个硬件密钥可以与特定数据对象或数据对象组相关联。因此，有效地，当前加载的硬件保护密钥集识别当前可访问哪些数据对象或数据对象组。软件密钥被分配给数据对象并动态映射到硬件保护密钥集，使得当调用模块时，分配给该模块的软件密钥被映射到要加载的硬件保护密钥集，以控制对存储器的当前访问。

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