Abstract: This invention relates to a storage system, storage system method and computer program product comprising: providing a distributed collection of drives, each drive having logical blocks, each logical block being assignable to a segment with an associated volume and being configurable to RAID characteristics associated with that volume; assigning a first group of logical blocks to a segment with an associated volume and configuring the first group of logical blocks to RAID characteristics associated with that volume; and wherein a further group of logical blocks is ready to be assigned to any segment but is not yet assigned.

Abstract: In one or more embodiments, one or more systems, methods, and/or processes may configure an input/output memory management unit; may receive, from a device associated with an information handling system, a request for an allocation of storage of a memory medium of the information handling system; may allocate the storage of the memory medium without an interaction with a processor of the information handling system and without an interaction with an operating system executed by the processor; may add a table entry, associated with the allocation of storage of the memory medium, to a page table; may provide update information to the operating system; may provide a success response to the device; may store first data from the device; and may provide second data to the device.

Abstract: A memory device includes a non-volatile memory configured with a block including first and second portions and an address decoder mapping received command addresses to physical addresses of the non-volatile memory. The memory device includes control circuitry maintaining a current status of the first portion and the second portion and implementing an update operation, including responsive to receiving a write command sequence to the block, causing the address decoder to (i) map the write command address to one of the first portion and the second portion, selected in response to the current status and (ii) update the selected one of the first portion and the second portion with the updated information, and upon completion of the updating, changing the current status to indicate that the selected one of the first and second portion is the current area.

Abstract: A method may include writing data to a hard drive. In some examples, the method may include receiving, by an extent allocator module, a command to write data. The command may include data and a logical block address (LBA) specified by the host. The method may also include mapping, by the extent allocator module, the LBA specified by the host to a drive LBA. The method may further include sending, from the extent allocator module, a command to write the data at the drive LBA.

Abstract: An electronic terminal (100) switches (500) from a normal memory access mode to a volatile memory access mode responsive to receiving user input. An open-write command is received (510) from an application to open a first file for writing. A determination (512) is made whether the first file is located in a volatile memory partition of the at least one memory. Based on determining the first file is not located in the volatile memory partition of the at least one memory, the first file is copied (516) from a normal memory partition of the at least one memory to the volatile memory partition, and the first file located in the volatile memory partition is opened (518) for writing. In contrast, based on determining the first file is located in the volatile memory partition, the first file located in the volatile memory partition is opened (520) for writing. Write commands from the application are directed (524) to the first file located in the volatile memory partition.

Abstract: A computing system includes multiple compute nodes that include respective processors and respective cache memories. The processors are configured to determine a default compute node in which a given data item is to be cached, to make a decision whether to cache the given data item in the default compute node or in an alternative compute node, based on cache-quality metrics that are evaluated for respective cache memories of the compute nodes, and to cache the given data item in the default compute node or in the alternative compute node, depending on the decision.

Abstract: Apparatuses, systems, methods, and program products are disclosed for cache replacement. An apparatus includes a cache memory structure, a processor, and memory that stores code executable by the processor. The code is executable by the processor to receive a value to be stored in the cache memory structure, identify, in response to determining that the received value is not currently stored in an entry of the cache memory structure, a least recently used (“LRU”) set of entries of the cache memory structure where the received value can be stored, and select a least frequently used (“LFU”) entry of the identified LRU set of entries for storing the received value.

Abstract: Methods and systems for accessing a memory are provided. One method of accessing a memory includes generating a memory access profile for accesses to a memory array. A memory controller coupled to the memory array is configured using the generated memory access profile. After configuring the memory controller, accesses to the memory array are interleaved based on the memory access profile.

Abstract: A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory. The processing circuitry is configured to execute the operational instructions to perform various operations and functions. The computing device detects memory error(s) associated with memory device(s) of set(s) of storage units (SUs). The computing device processes the memory error(s) to generate a rebuilding priority level for at least some EDS(s) and establishes an EDS scanning rate. The computing device scans the EDS(s) based on the EDS scanning rate. When an EDS error is detected, the computing device updates the rebuilding priority level to generate an updated rebuilding priority level for the at least some of the set of EDSs and facilitates generation at least one rebuilt EDS for the EDS error based on the updated rebuilding priority level.

Abstract: A scalable approach is disclosed for processing auxiliary-copy jobs in a storage management system by using distributed media agent resources instead of a centralized storage manager. Enhanced media agents coordinate and control auxiliary-copy jobs and tap the storage manager to reserve data streams and provide job-specific metadata on demand. An enhanced storage manager may initially select a media agent as “coordinator” to coordinate auxiliary-copy jobs with any number of other media agents, which act as “controllers.” A coordinator media agent is generally responsible for obtaining data stream reservation information from the storage manager and assigning auxiliary-copy jobs to respective controller media agents, based on the components involved in the respective reserved data streams.

Abstract: According to one embodiment, a storage device includes a storage portion storing a first entry, the first entry includes a first translation table corresponding between a first logical address and a first physical address on a nonvolatile memory, and a first state showing that data at the first physical address is a valid as data at the first logical address, and a controller adding a second entry in the storage portion and changing the first state to a second state when receiving a command from a host, the second entry includes a second translation table corresponding between a second logical address and the first physical address, and a third state showing that the first physical address of the second translation table is referring to the first physical address of the first translation table, the second state showing that the first physical address of the first translation table is shared with the first physical address of the second translation table.

Abstract: This nonvolatile memory device has a blockwise-erase nonvolatile memory including a plurality of physical areas, and also has a memory controller which transmits one of a plurality of types of commands to the nonvolatile memory. After an erase command to erase one of the physical areas has been transmitted, but before a response to that erase command is received, the memory controller determines whether to suspend the ongoing erasure of the physical area, on the basis of whether there is a command to be transmitted and/or on the basis of the degree of deterioration of the physical area being erased. If the determination is affirmative, the memory controller transmits a command to the nonvolatile memory to suspend the erasure.

Abstract: A streaming engine employed in a digital data processor specifies a fixed read only data stream defined by plural nested loops. An address generator produces address of data elements for the nested loops. A steam head register stores data elements next to be supplied to functional units for use as operands. A stream template register specifies a circular address mode for the loop, first and second block size numbers and a circular address block size selection. For a first circular address block size selection the block size corresponds to the first block size number. For a first circular address block size selection the block size corresponds to the first block size number. For a second circular address block size selection the block size corresponds to a sum of the first block size number and the second block size number.

Abstract: A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory. The processing circuitry is configured to execute the operational instructions to perform various operations and functions. The computing device detects a potentially adverse storage issue with a memory device of a storage unit (SU) of set(s) of storage unit(s) (SU(s)). The computing device also determines whether to transfer at least one EDSs (associated with the memory device) to another memory device for temporary storage therein. Based on a determination not to transfer, the computing device identifies at least one alternate storage location and facilitates transfer of the at least one EDSs for temporary storage therein. When the potentially adverse storage issue has subsided, the computing device facilitates transfer of the at least one EDSs back.

Abstract: A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory. The computing device determines to perform maintenance tasks associated with a set of memory devices of a set of storage units (SUs) of a common DSN address range. The computing device ensures that a selected number of memory devices on which the maintenance tasks are performed is less than or equal to a difference between a pillar number and a decode threshold number of dispersed error encoding parameters by which a data object is encoded and stored in the DSN. While performing the maintenance tasks, the computing device facilitates inhibiting storage of other EDSs in the set of memory devices and/or temporarily accesses at least the decode threshold number of memory devices.

Abstract: A computer on which OSs run is coupled to the storage apparatus, the OSs include a first OS controlling access to the storage apparatus and a second OS generating a virtual computer. A logically divided computer resources are allocated to the first OS and the second OS respectively. A third OS for executing an application runs on the virtual computer. The second OS has a shared region management part managing a shared region that is a memory region used for communication between the application and the first OS. The third operating system has an agent requesting the second operating system to secure the shared region based on a request from the application and mapping the secured shared region to a guest virtual address space.

Abstract: A method, article of manufacture, and system for cloud backups is discussed. Heterogeneous backup appliances may be deployed in a datacenter. Facades may interface these appliances with a backup management system.

Abstract: A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory. The computing device determines to perform maintenance tasks associated with a set of memory devices of a set of storage units (SUs) of a common DSN address range. The computing device ensures that a selected number of memory devices on which the maintenance tasks are performed is less than or equal to a difference between a pillar number and a decode threshold number of dispersed error encoding parameters by which a data object is encoded and stored in the DSN. While performing the maintenance tasks, the computing device facilitates inhibiting storage of other EDSs in the set of memory devices and/or temporarily accesses at least the decode threshold number of memory devices.

Abstract: According to one embodiment, the memory system includes a nonvolatile semiconductor memory, a data buffer, a volatile memory for storing a management table uniquely associates the user data with an address of the physical storage region of nonvolatile semiconductor memory, a controller that carries out a force quit process for writing the user data stored in a data buffer, the management table stored in volatile memory into the nonvolatile semiconductor memory, and a storage battery. The controller starts the force quit process prior to the power supply of the internal power supply regulator is switched from an external power supply to the storage battery.

Abstract: A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory. The processing circuitry is configured to execute the operational instructions to perform various operations and functions. The computing device detects at least one available memory device within a storage unit (SU). The computing device identifies storage capacities of each of the memory devices within the SU and identifies a DSN address range associated with the SU. The computing device maps the DSN address range to each of the memory devices within the SU based on the storage capacities to generate a memory mapping of the memory devices within the SU. The computing device then facilitates redistribution of some EDS from a first memory device to the at least one available memory device within the SU.