Abstract: a storage device wiping system and method that is activated from a remote server or other site when a computer is reported lost or stolen. The wipe technique selectively wipes all data files and free space before beginning to wipe the entire storage device. This causes any personal data files, photos, videos, and the like to be wiped first. Once the wiping process starts, it will continue until complete. The process starts or continues whenever the computer is booted. Only when all personal and sensitive data is wiped, will the system then change the encryption key (if there is one) and begin wiping the entire storage device.

Abstract: Techniques for virtual proxy based backup of virtual machines in a cluster environment are disclosed. In some embodiments, each of a subset of virtual machines hosted by physical nodes in a cluster environment is configured as a virtual proxy dedicated to backup operations. During backup, data rollover of each virtual machine in the cluster environment that is subjected to backup is performed using a virtual proxy.

Abstract: A speculative read request is received from a host device over a buffered memory access link for data associated with a particular address. A read request is sent for the data to a memory device. The data is received from the memory device in response to the read request and the received data is sent to the host device as a response to a demand read request received subsequent to the speculative read request.

Abstract: This invention hides the page miss translation latency for program fetches. In this invention whenever an access is requested by CPU that crosses a memory page boundary, the L1I cache controller request a next page translation along with the current page. This pipelines requests to the ?TLB without waiting for L1I cache controller to begin processing the next page requests. This becomes a deterministic prefetch of the second page translation request. The translation information for the second page is stored locally in L1I cache controller and used when the access crosses the next page boundary.

Abstract: The present disclosure describes systems and methods for controlling access to secure debugging and profiling features of a computer system. Some illustrative embodiments include a system that includes a processor, and a memory coupled to the processor (the memory used to store information and an attribute associated with the stored information). At least one bit of the attribute determines a security level, selected from a plurality of security levels, of the stored information associated with the attribute. Asserting at least one other bit of the attribute enables exportation of the stored information from the computer system if the security level of the stored information is higher than at least one other security level of the plurality of security levels.

Abstract: System and method for high speed data storage. An unmounted unformatted direct access storage device (DASD) may be opened via an operation system (OS) application programming interface (API). A maximum amount of storage space afforded by the DASD may be determined, and the DASD locked, thereby limiting write access to the DASD to a first application process and excluding writes to the DASD by any other application process. A single data type data stream is received, and stored on the DASD in linear fashion as it is received without using a file system architecture, metadata, indices, or keys associated with the data, including writing a block of the stream of data to the DASD and returning a next contiguous write location on the DASD in an iterative manner. The stored data are readable by multiple readers in a linear manner without using the file system architecture, metadata, indices, or keys.

Abstract: Example embodiments of the present invention relate to a method, a system, and a computer program product for transitioning between replication technologies. The method includes performing continuous data protection in a data protection environment, transitioning from continuous data protection to changed block tracking in the data protection environment, and performing changed block tracking in the data protection environment.

Abstract: An operational management server manages a storage device that includes a plurality of types of disks having different performances. A setting unit sets a target value of a performance to a volume produced by using the different types of the disks. An allocation rate management unit determines allocation rates of the respective types of the disks included in the volume on the basis of the target value set by the setting unit, and instructs the storage device to reproduce the volume in accordance with the determined allocation rates.

Abstract: A method of storing data in a distributed manner based on data compression ratio prediction, and a mass storage device and system using the method are disclosed. The device includes a compression ratio predicting unit, a compressing unit, and a control unit. When an address and first unit sized data are received, the compression ratio predicting unit estimates the predicted compression ratio of the first unit sized data. The compressing unit generates compressed data. The control unit calculates the benefit of compression based on at least the estimated predicted compression ratio, stores the compressed data in a first storage area if the calculated benefit of compression is higher than a predetermined benefit threshold value, and stores the first unit sized data in the second storage area if the calculated benefit of compression is equal to or lower than the predetermined benefit threshold value.

Abstract: Embodiments described herein relate to systems and methods for decreasing power consumption of a storage device. More specifically, embodiments disclosed herein are directed to reducing power consumption of a data storage device by enabling a command buffer associated with the data storage device to store received commands without executing the commands until a predetermined number of commands have been stored in the buffer.

Abstract: A memory device and a method of operating the memory device are provided. The memory device comprises a plurality of storage units and access control circuitry. The access control is configured to receive an access request and in response to the access request to initiate an access procedure in each of the plurality of storage units. The access control circuitry is configured to receive an access kill signal after the access procedure has been initiated and, in response to the access kill signal, to initiate an access suppression to suppress the access procedure in at least one of the plurality of storage units. Hence, by initiating the access procedures in all storage units in response to the access request, e.g.

Abstract: An information processing apparatus includes first and second central processing units, a communication unit, and a memory. The first and second central processing units operate based on first and second operating systems, respectively. The communication unit controls communication between the first and second operating systems. The memory includes first and second memory areas used respectively by the first and second operating systems. The first operating system includes a memory access requesting unit. The memory access requesting unit sends, to the second operating system via the communication unit, a request to write information to be moved from the first memory area to a virtual memory and a request to read information to be moved from the virtual memory to the first memory area. The second operating system writes to and reads from the second memory area, the information indicated by the write and read requests, respectively.

Abstract: This document describes techniques for efficient data deployment for a parallel data processing system. In one embodiment, a virtualization platform running a parallel processing application that includes one or more virtual data nodes receives a first command to write a data block to a storage device. The platform then determines whether the first command was sent by a first virtual data node. If the first command was sent by a first virtual data node, the platform then 1) writes, the data block to a first location in the storage device; 2) returns the first location to the first virtual data node and 3) determines whether the data should be replicated. If the data should be replicated, the platform instructs the storage device to make a copy of the data block to a second location in the storage device and storing the second location in a tracking structure.

Abstract: An information processing apparatus according to an aspect of the present invention acquires temperature information for each of a plurality of memories in a wide IO memory device, and when execution of a job is instructed, decides on a memory having a lower temperature as the memory to be used by a functional module that corresponds to a function, based on the memory size to be used by the functional module that corresponds to the function, and on the acquired temperature information for the memories.

Abstract: A method and associated systems for efficient management of cloned data. One or more processors create a “child” clone of a “parent” software image. The child and parent contain identical information organized into identical sets of file blocks. To conserve storage, each child block initially points to a physical storage location already in use by a corresponding parent block, rather than requiring additional storage of its own. The first time a child block is updated, however, it will require additional physical storage. At the time of the child's creation, the processors reserve a number of physical blocks sufficient to store the contents of all child file blocks likely to be updated. A child file block is identified as likely to be updated by analyzing past volatility of a corresponding file block of the parent or of corresponding file blocks of other children of the same parent.

Abstract: A data storage system may be configured at least with a primary memory that is coupled to a host via a controller and coupled to at least one external interface. The controller may be adapted to passively partition a secondary memory into cache and user memory space regions in response to the secondary memory engaging the at least one external interface and the cache region can be allocated as cache for the primary memory by the controller.

Abstract: For each data change occurring transaction created as part of a write operation initiated for one or more tables in a main-memory-based DBMS, a transaction log entry can be written to a private log buffer corresponding to the transaction. All transaction log entries in the private log buffer can be flushed to a global log buffer upon completion of the transaction to which the private log buffer corresponds.

Abstract: Embodiments of the present invention disclose a method and apparatus of cache management for a non-volatile storage device. The method embodiment includes: determining a size relationship between a capacity sum of a clean page subpool and a dirty page subpool and a cache capacity; determining, when the capacity sum is equal to the cache capacity, whether identification information of a to-be-accessed page is in a history list of clean pages or a history list of dirty pages; and when it is determined that the identification information of the to-be-accessed page is in the history list of clean pages, adding a first adjustment value to a clean page subpool capacity threshold; and when the identification information of the to-be-accessed page is in the history list of dirty pages, subtracting a second adjustment value from the clean page subpool capacity threshold.

Abstract: Data storage system and management method thereof are provided. The method, adopted by a data storage device coupled to a host device via a bus, includes: determining the data storage device requires to use a first temporary memory of the host device to access data in a second temporary memory of the data storage device; based on the determination, issuing a Device Bus Master (DBM) request message via the bus to the host to request for a right to control data transfer on the bus; in response to the DBM request message, detecting the bus to determine whether to receive a first DBM acknowledgement message from the host device; and if the first DBM acknowledgement message is received, then accessing the first temporary memory of the host device.

Abstract: A data manager may include a data opaque interface configured to provide, to an arbitrarily selected page-oriented access method, interface access to page data storage that includes latch-free access to the page data storage. In another aspect, a swap operation may be initiated, of a portion of a first page in cache layer storage to a location in secondary storage, based on initiating a prepending of a partial swap delta record to a page state associated with the first page, the partial swap delta record including a main memory address indicating a storage location of a flush delta record that indicates a location in secondary storage of a missing part of the first page. In another aspect, a page manager may initiate a flush operation of a first page in cache layer storage to a location in secondary storage, based on atomic operations with flush delta records.