Abstract: A method is used for efficient storage allocation in a storage system. An infrastructure manager receives a request for storage from a first storage operating entity. The infrastructure manager identifies, from entries in a pagebin, a pagelist with sufficient available storage to satisfy the request. The infrastructure manager locks the pagebin while assigning the identified pagelist to the first storage operating entity. Upon a commitment of the identified pagelist by the first storage operating entity, the infrastructure manager unlocks the pagebin and identifies, from the entries in the pagebin, a second pagelist with sufficient available storage to satisfy a request from a second storage operating entity.

Abstract: An information handling system may include a processor and a storage subsystem. The storage subsystem may include a non-expander backplane, a first plurality of storage resources coupled to the processor via the non-expander backplane, and a second plurality of storage resources coupled to the processor via a communication path that does not include the non-expander backplane. The information handling system may be configured to provide slot numbers for the storage resources according to a numbering scheme in which a storage resource from the first plurality of storage resources and a storage resource from the second plurality of storage resources have the same slot number.

Abstract: A neural network method, comprising: modeling an environment; implementing a policy based on the modeled environment, to perform an action by an agent within the environment, having at least one estimated dynamic parameter; receiving an observation and a temporally-associated cost or reward based on operation of the agent in the environment controlled according to the policy; and updating the policy, dependent on the received observation and the temporally-associated cost or reward, to improve the policy to optimize an expected future cumulative cost or reward. The policy may represent a set of parameters defining an artificial neural network having a plurality of hierarchical layers and having at least one layer which receives inputs representing aspects of the received observation indirectly from other neurons, and produce outputs to other neurons which indirectly implement the policy, the plurality of hierarchical layers being trained according to respectfully distinct training criteria.

Abstract: A method for reducing a number of copies required to send a data sample with a Data Distribution Service (DDS) type in a system using an Object Management Group (OMG) Data Distribution Service (DDS) and a Real-Time Publish Subscribe (RTPS) protocol is provided. Key to the invention is the definition/creation of a memory representation of the data samples for the DDS type that is equal to the network representation of the data samples for the DDS type. Sending of data samples to the DataReader is accomplished without making a serialization copy of the data samples, and for the receiving the data samples from the DataWriter is accomplished without making a deserialization copy of the data samples. Further, a method is provided for accessing to a network representation of data samples with a DDS type in a system using an OMG DDS and a RTPS protocol.

Abstract: Data migration from a legacy data storage system into an ordered event stream (OES) data storage system is disclosed. In contrast to conventional techniques, the disclosed subject matter can provide for migrating legacy data into a first portion of a vintage OES (VOES) and new data, intended for the legacy data storage system during the migration process, into a second portion of the VOES. The first and second portions of the VOES can then be linked at completion of the migration process. Avoiding writing new data to the legacy data storage system prior to migration enables a corresponding reduction in data access disruption. Moreover, event sequencing by separating migrated legacy events from new events can preserving event order. Scaling of vintage streams can be supported. Vintage streams can support function calls to a single VOES in contrast to the more conventional use of multiple streams.

Abstract: Techniques are described herein that are capable of dynamically re-allocating computing resources while maintaining network connection(s). Applications of users are run in a computing unit. Computing resources are allocated among the applications based at least in part on dynamic demands of the applications for the computing resources and resource limits associated with the respective customers. In a first example, the computing resources are dynamically re-allocated among the applications, as a result of changing the resource limit of at least one customer, while maintaining at least one network connection between a client device of each customer and at least one respective application. In a second example, the computing resources are dynamically re-allocated among the applications, as a result of changing the resource limit of at least one customer, while maintaining at least one network connection between an interface and a client device of each customer.

Abstract: Techniques for managing storage blocks involve: according to a first request for allocating a target number of consecutive storage blocks from a storage device, querying an index table that is used to record index information of a plurality of groups of consecutive idle storage blocks in the storage device to determine a first group of consecutive idle storage blocks from the plurality of groups of consecutive idle storage blocks; allocating the target number of consecutive storage blocks from the first group of consecutive idle storage blocks; updating a bitmap that is used to record states of a plurality of storage blocks in the storage device; and updating first index information of the first group of consecutive idle storage blocks recorded in the index table. Accordingly, such techniques may reduce storage complexity and improve system performance.

Abstract: An information handling system includes a processor that detects a cache flush request of a memory device within the processor, and identifies multiple blocks of data within an address space associated with the cache flush request. The processor groups the multiple blocks of data into a single composite block of data, and compresses the composite block of data. The processor stores the compressed composite block of data, and stores metadata for the compressed composite block of data. The metadata includes information for both the composite block of data and information for each of the multiple blocks of data.

Abstract: A database management system is described that can encode data to generate a plurality of data vectors. The database management system can perform the encoding by using a dictionary. The database management system can adaptively reorder the plurality of data vectors to prepare for compression of the plurality of data vectors. During a forward pass of the adaptive reordering, most frequent values of a data vector of the plurality of data vectors can be moved-up in the data vector. During a backward pass of the adaptive reordering, content within a rest range of a plurality of rest ranges can be rearranged within the plurality of data vectors according to frequencies of the content. The reordering according to frequency can further sort the rest range by value. Related apparatuses, systems, methods, techniques, computer programmable products, computer readable media, and articles are also described.

Abstract: Systems, methods, and apparatus related to a memory system that manages an interface for a volatile memory device and a non-volatile memory device to control memory system power. In one approach, a controller evaluates a demand on memory performance. If the demand of a current computation task needed by the host is high, a DRAM device is powered-up to meet the demand. Otherwise, if the non-volatile memory device is adequate to meet the demand, the DRAM memory is partially or fully-powered down to save power. In another approach, a task performed for a host device uses one or more resources of a first memory device (e.g., DRAM). A performance capability of a second memory device (e.g., NVRAM) is determined. A controller of the memory system determines whether the performance capability of the second memory device is adequate to service the task.

Abstract: Disclosed is a network management system that provides an interface to enable diagnostics and troubleshoot of a remotely managed multi-site network. Some embodiments provide a natural language interface, while other embodiments provide a chatbot type interface that communicates with a technician via traditional text information on a display screen. The diagnostic and troubleshooting capabilities search a central data store that receives device property information from each site of the multi-site network. Based on devices or users that match portions of the entity, queries to the data store are initiated to obtain additional data on the devices. A response to the query is then provided based on the properties of the devices.

Abstract: A computer-implemented method for duplexing data from multiple files systems onto a shared tape is disclosed. The computer-implemented method includes receiving a unique identifier of a first tape image written to a primary storage device of a first client system. The computer-implemented method further includes determining that a position of a first end-of-data marker on the first tape image differs from a position of a second end-of-data marker on a tape corresponding to the unique identifier of the first tape image. Responsive to determining that the position of the first end-of-data marker on the first tape image differs from the position of the second end-of-data marker on the tape corresponding to the unique identifier of the first tape image, the computer-implemented method further includes copying a difference in data between the second end-of-data marker on the tape and be first end-of-data marker on the first tape image to the tape.

Abstract: Examples relate to preventing scheduling or executing a resource on an inconsistent host node in a networked system. Some examples track a taint status of the host node and identify whether the host node is inconsistent based on the taint status of the host node over a predefined period of time. Upon identifying that the host node is inconsistent, a master taint is applied on the inconsistent host node, which prevents scheduling or executing a resource on the identified inconsistent host node.

Abstract: A user definition of a memory shape can be received and a multidimensional, contiguous, physical portion of a memory array can be allocated according to the memory shape. The user definition of the memory shape can include a quantity of contiguous columns of the memory array, a quantity of contiguous rows of the memory array, and a major dimension of the memory shape. The major dimension can correspond to a dimension by which to initially stride data stored in the memory shape.

Abstract: A method for data processing, comprising updating intermediate storage information according to data to be processed and address information of the data to be processed in a first storage space, until the intermediate storage information has reached a preset size; and performing, in the first storage space, an operation corresponding to the data to be processed using the intermediate storage information, when the intermediate storage information reaches the preset size. By the above method, the computing cost for performing an operation corresponding to the data to be processed in the first storage space can be reduced, the efficiency in performing the corresponding operation can be improved, and with intermediate storage information adapted to the first storage spaces of different sizes, the number of operations on the first storage spaces can be reduced.

Abstract: Disclosed is an evaluation system for evaluating a resource operation of an information system by a user. The evaluation system includes one or more arithmetic units, and one or more storage devices. The one or more storage devices are configured to store risk management information for managing an erroneous operation risk evaluation index relating to the resource operation of the information system. The one or more arithmetic units are configured to: receive operation information indicating a first resource operation designated by a first user, and evaluate an erroneous operation risk of the first resource operation based on the first resource operation and the risk management information.

Abstract: A data processing system and method, and a corresponding apparatus, where the data processing system includes a controller and at least two storage nodes. The controller is configured to receive, using a first coupling between the controller and a host, an operation request received from the host, where the operation request includes an identity of target data and an operation type, determine at least one target storage node from the at least two storage nodes according to the identity of the target data, and send an instruction message to the at least one target storage node using a second coupling to the at least one target storage node, where the at least one target storage node is configured to send the target data to the host or obtain the target data from the host according to the instruction message.

Abstract: A memory device includes a non-volatile (NV) memory including a plurality of NV memory elements. A method for performing programming management of the NV memory includes: setting a programming sequence of the NV memory elements; determining a selection interval between each of the NV memory elements according to the programming sequence and a serial number of each of the NV memory elements; for a target NV memory element of the plurality of NV memory elements in the programming sequence, determining a serial number of an immediately previous NV memory element in the programming sequence according to the selection interval and a serial number of the target NV memory element; determining whether the immediately previous NV memory element is in a busy state; and only when the immediately previous NV memory element is not in the busy state, programming the target NV memory element.

Abstract: The present disclosure provides a management method and an apparatus for coexisting multi-storage mediums. The method includes: scanning a plurality of storage mediums to identify the storage medium operating in an online mode; configuring the storage medium operating in the online mode as a first storage medium; establishing a doubly linked list by a controller, wherein the doubly linked list records storage mediums operating in the online mode; determining whether the first storage medium is in a register table; turning on a switching mode of the first storage medium upon determining the first storage medium is in the register table; and retrieving a switching command via a storage layer, wherein the switching command is generated by the controller in response to user request.

Abstract: A performance manager (400, 500) and a method (200) performed thereby are provided, for managing the performance of a logical server of a data center. The data center comprises at least one memory pool in which a memory block has been allocated to the logical server. The method (200) comprises determining (230) performance characteristics associated with a first portion of the memory block, comprised in a first memory unit of the at least one memory pool; and identifying (240) a second portion of the memory block, comprised in a second memory unit of the at least one memory pool, to which data of the first portion of the memory block may be migrated to apply performance characteristics associated with the second portion. The method (200) further comprises initiating migration (250) of the data to the second portion of the memory block.

Abstract: An initialization data memory space allocation system includes a memory system having a memory space that includes an initialization data bucket that reserves a contiguous subset of the memory space for initialization data. Each initialization engine that is coupled to the memory system is configured during initialization operations to allocate, for that initialization engine, a portion of the contiguous subset of the memory space reserved by the initialization data bucket, and then store initialization data in that portion of the contiguous subset of the memory space reserved by the initialization data bucket. A runtime engine that is coupled to the memory system is configured, during runtime operations, to claim the contiguous subset of the memory space reserved for initialization data by the initialization data bucket for runtime data, and store runtime data in at least a portion of the contiguous subset of the memory space.

Abstract: Embodiments for providing global inline name space verification for a distributed file system in a network of a metadata server coupled to a plurality of data servers by taking a global dataless snapshot of a namespace of the distributed file system; walking all of the files in the namespace for each data server and the metadata server to generate parsed information; combining, by an XOR operation, the parsed information into data blocks for each server; obtaining a checksum of each data block of the data blocks; comparing actual and expected checksums from the metadata server and all of the data servers; and generating an alert if a comparison of any actual and expected checksums do not match.

Abstract: Described herein are techniques for improving transfer of metadata from a metadata database to a database stored in a data system, such as a data warehouse. The metadata may be written into the metadata database with a version stamp, which is monotonic increasing register value, and a partition identifier, which can be generated using attribute values of the metadata. A plurality of readers can scan the metadata database based on version stamp and partition identifier values to export the metadata to a cloud storage location. From the cloud storage location, the exported data can be auto ingested into the database, which includes a journal and snapshot table.

Abstract: A storage client needs to store to-be-written data into a distributed storage system, and storage nodes corresponding to a first data unit assigned for the to-be-written data by a management server are only some nodes in a storage node group. When receiving a status of the first data unit returned by the management server, the storage client may determine quantities of data blocks and parity blocks needing to be generated during EC coding on the to-be-written data. The storage client stores the generated data blocks and parity blocks into some storage nodes designated by the management server in a partition where the first data unit is located. Accordingly, dynamic adjustment of an EC redundancy ratio is implemented, and the management server may exclude some nodes in the partition from a storage range of the to-be-written data based on a requirement, thereby reducing a data storage IO amount.

Abstract: Systems, methods, and non-transitory computer readable media are provided for recursively searching a plurality of workspaces of the system for linked data associated with the seed data, initiating an endpoint process for each the seed data and the linked data, and, upon completion of the search, delete the seed data and the linked data identified based at least in part on the endpoint process. The process may be automatically repeated at a predetermined time interval to identify and remove future data that is stored in the plurality of datasets.

Abstract: In some examples, a system assigns workload fingerprints to each respective storage volume of a plurality of storage volumes, the workload fingerprints assigned to the respective storage volume across a plurality of points. Based on the workload fingerprints assigned to respective storage volumes of the plurality of storage volumes, the system groups the storage volumes into clusters of storage volumes. The system manages an individual cluster of the clusters of storage volumes according to an attribute associated with the individual cluster.

Abstract: Methods, systems, and devices for caching identifiers for access commands are described. A memory sub-system can receive an access command to perform an access operation on a transfer unit of the memory sub-system. The memory sub-system can store an identifier associated with the access command in a memory component and can generate an internal command using a first core of the memory sub-system. In some embodiments, the memory sub-system can store the identifier in a shared memory that is accessible by the first core and can issue the internal command to perform the access operation on the memory sub-system.

Abstract: Techniques for determining a virtual machine configuration based on garbage collection characteristics are disclosed. GC characteristics associated with GC cycles executed on a memory allocated for execution of an application are obtained. A relationship between GC variables is determined based on the GC characteristics collected over a time period of interest. A target GC characteristic is input to the GC variable relationship to determine an expected GC characteristic. The target GC characteristic may be, for example, a target cumulative pause time per a time interval. A virtual machine configuration is determined based on the expected GC characteristic. The virtual machine configuration is applied to a virtual machine executing the application.

Abstract: Managing pool memory in a data storage system includes maintaining free lists for corresponding object sizes. For a memory-consuming request (e.g., host write) an allocation operation is performed and the request data is stored. The allocation operation includes (1) selecting a memory object at least as large as the request size and removing all pages of the selected memory object from the corresponding free list, and (2) selecting pages of the selected memory object to store the request data and marking the selected pages as non-free, and leaving any leftover pages as free pages. For a memory-freeing request (e.g., destaging), a deallocation operation is performed that includes (1) marking the request pages free, and (2) based on neighboring pages being free, merging the request pages and neighboring pages into a corresponding memory object and adding the merged pages to the corresponding free list.

Abstract: A gateway for interfacing a host with a subsystem for acting as a work accelerator to the host. The gateway enables the transfer of batches of data to the subsystem at precompiled data exchange synchronisation points. The gateway acts to route data between accelerators which are connected in a scaled system of multiple gateways and accelerators using a global address space set up at compile time of an application to run on the computer system.

Abstract: A memory management system includes a physical memory associated with a computing device and a memory manager. The memory manager is configured to manage a shared memory cache as part of a compression of the physical memory using a cache compression algorithm, wherein a compression block size for the compression is a single cache line size. The physical memory includes a sector translation table (STT) region and a sector memory region. The memory manager uses a memory descriptor defined by an STT entry having a cache line map and a plurality of sector pointers to load cache from the physical memory to a level 3 Cache. The cache line map contains cache line metadata including a size of each cache line, a location of the cache line in one of the sectors pointed to by the STT entry, and a plurality of flags.

Abstract: In a multi-node storage system, a node's capacity has an upper limit, and capacities provided by nodes are smaller than a capacity of a global pool. A volume having a capacity larger than the capacity of one node is created by the node. A write error occurs when an amount of data larger than the capacity of the node is written. A storage system reduces the frequency of such a write error. A global pool is based on a plurality of local pools of a plurality of storage nodes that constitute a node group. In any of the storage nodes, a capacity relationship is maintained where a used capacity of a volume created by the storage node is equal to or less than an available capacity of a local pool of the storage node. A storage management unit manages the node group and selects the storage node.

Abstract: Methods and systems for training a multivariate model predicting utilization of a space. One method includes receiving, over a period of time, signals from each of a plurality of mobile devices located in the space and generating, based on the signals received from each of the plurality of mobile devices, a plurality of location data points for each of the plurality of mobile devices, each of the plurality of location data points for a mobile device including a timestamp and a position within the space of the mobile device. The method also includes accessing metadata of the space, and using, with an electronic processor, the plurality location data points for each of the plurality of mobile devices and the metadata of the space to train machine learning engine. In addition, the method includes predicting a utilization of the space using the machine learning engine.

Abstract: A control apparatus includes a processor configured to execute a procedure including: receiving, from a processing device, a reading request to read a first data piece among a plurality of data pieces included in a data set, the processing device executing a given process on each of the data pieces; reading the first data piece from a first storage tier among a plurality of hierarchical storage tiers having respective different reading capabilities; transmitting the read first data piece to the processing device in response to the reading request; measuring a processing time that the processing device takes to execute the given process; determine a storage tier that is to store the first data piece among the hierarchical storage tiers based on the reading capabilities and the measured processing time; and migrating the first data piece from the first storage tier to the determined storage tier.

Abstract: An electronic device includes: a memory device; a nonvolatile memory configured to store a plurality of first configuration parameters respectively corresponding to operating voltages of the memory device and a plurality of second configuration parameters respectively corresponding to operating temperatures of the memory device; and a memory controller configured to: determine a value of a third configuration parameter corresponding to an operating voltage of the memory device among the plurality of first configuration parameters stored in the nonvolatile memory without performing a training operation, determine a value of a fourth configuration parameter corresponding to an operating temperature of the memory device among the plurality of second configuration parameters stored in the nonvolatile memory without performing the training operation, and drive the memory device according to the determined values of the third and the fourth configuration parameters.

Abstract: A host device is configured to communicate with a storage system comprising a root logical volume. The root logical volume comprises an operating system associated with the host device. The host device is configured to obtain execution data from the root logical volume and to store the execution data in the memory of the host device. The host device is further configured to suspend the root logical volume based at least in part on the execution data stored in the memory of the host device and to change a dependency of the host device from a first multipath device of the host device to a second multipath device of the host device. The host device is further configured to reload and resume the root logical volume based at least in part on the execution data.

Abstract: The present disclosure provides techniques for deallocating previously allocated storage blocks. The techniques include obtaining a list of chunk IDs to analyze, choosing a chunk ID, and determining the storage blocks spanned by the chunk corresponding to the chosen chunk ID. The technique further includes determining whether any file references any storage blocks spanned by the chunk. The determining may be performed by comparing an internal reference count to a total reference count, where the internal reference count is the number of reference to the storage block by a chunk ID data structure. If no files reference any of the storage blocks spanned by the chunk, then all the storage blocks of the chunk can be deallocated.

Abstract: Migration of virtual machines within a computing environment is facilitated. A processor obtains a current virtual machine to host mapping in the computing environment, as well as a plurality of future virtual machine to host mappings. A current migration plan to migrate from a current state of the computing environment to another state of the computing environment is also obtained. Based on the current virtual machine to host mapping and one or more future virtual machine to host mappings of the plurality of future virtual machine to host mappings a determination is made that one or more potential alert conditions exist in the current migration plan. The current migration plan and/or one or more future virtual machine to host mappings are displayed. The current migration plan is adjusted to address at least one potential alert condition of the one or more potential alert conditions to improve processing within the computing environment.

Abstract: A method for processing snapshots and a distributed block storage system, the method including: acquiring the number of read operations and the number of read/write operations for a data block in a distributed block storage system; on the basis of the number of read operations and the number of read/write operations, determining a target snapshot manner, wherein the target snapshot manner includes copying while writing or re-orienting while writing; on the basis of the target snapshot manner, performing a snapshot operation on the data block in the distributed block storage system.

Abstract: Each controller moves authority for access processing to data in a logical area allocated to the controller between the controllers, for a first storage area in which there is data related to the logical areas of the plurality of controllers by moving the authority for the access processing from a first controller to a second controller. Each of the first controller and the second controller writes data after update related to a write request to the storage area allocated to the own controller and deletes data before update in the first storage area, and moves data for which the own controller has the authority for the access processing in the first storage area to another storage area allocated to the own controller while taking over the allocation of the first storage area in relocation processing of relocating data.

Abstract: Methods and systems related to memory reduction in a system by oversubscribing physical memory shared among compute entities are provided. A portion of the memory includes a combination of a portion of a first physical memory of a first type and a logical pooled memory associated with the system. A logical pooled memory controller is configured to: (1) track both a status of whether a page of the logical pooled memory allocated to any of the plurality of compute entities is a known-pattern page and a relationship between logical memory addresses and physical memory addresses associated with any allocated logical pooled memory, and (2) allow the write operation to write data to any available space in the second physical memory of the first type only up to an extent of physical memory that corresponds to the portion of the logical pooled memory previously allocated to the compute entity.

Abstract: A memory system is connectable to the host. The memory system includes a nonvolatile first memory, a second memory in which a plurality of pieces of first information each correlating a logical address indicating a location in a logical address space of the memory system with a physical address indicating a location in the first memory are stored, a volatile third memory including a first cache and a second cache, a compressor configured to perform compression on the plurality of pieces of first information, and a memory controller. The memory controller stores the first information not compressed by the compressor in the first cache, stores the first information compressed by the compressor in the second cache, and controls a ratio between a first capacity, which is a capacity of the first cache, and a second capacity, which is a capacity of the second cache.

Abstract: A technique for managing storage space includes establishing an MSR (minimum space reservation) of a thin file system built upon a storage pool. In response to a set of storage requests to the file system to store new data, the method further includes obtaining an additional space guarantee from the storage pool. After deleting data from the file system such that the size of the file system falls below the MSR, the technique further includes performing a space reclaim operation, the space reclaim operation (i) compacting the file system to a size less than the MSR, (ii) canceling the additional space guarantee such that the storage pool no longer guarantees the additional space for the file system, and (iii) continuing to reserve the full MSR of the file system, even though the size of the file system is smaller than the MSR.

Abstract: An electronic device includes a memory controller selecting map data to be output to a host. The memory controller includes an address counter and a map data selector. The address counter counts a number of times a logical block address corresponding to a request is received based on the request received from the host and outputs an activation signal indicating that an index to which the logical block address belongs is an activation index when an activation count corresponding to the index is equal to or greater than a preset value, the activation count being generated based on a counting result. The map data selector selects map data to be output to the host based on the activation signal. The address counter decreases the activation count by a preset size when a size of the selected map data exceeds a storage capacity of the host allocated for storing map data.

Abstract: A storage management computing device obtains an information lifecycle management (ILM) policy. A data protection scheme to be applied at a storage node computing device level is determined and a plurality of storage node computing devices are identified based on an application of the ILM policy to metadata received from one of the storage node computing devices and associated with an object ingested by the one of the storage node computing devices. The one of the storage node computing devices is instructed to generate one or more copies of the object or fragments of the object according to the data protection scheme and to distribute the object copies or one of the object fragments to one or more other of the storage node computing devices to be stored by at least the one or more other storage node computing devices on one or more disk storage devices.

Abstract: Disclosed embodiments relate to opportunistically updating Electronic Control Unit (ECU) software in a vehicle. Operations may include receiving, at a controller in a vehicle, a wireless transmission indicating a need to update software running on at least one ECU in the vehicle; monitoring an operational status of the vehicle to determine whether the vehicle is in a first mode of operation in which an ECU software update is prohibited; delaying the ECU software update when the operational status is prohibited; continuing to monitor the operational status of the vehicle to determine whether the vehicle is in a second mode of operation in which the ECU software update is permitted; and enabling updating of the at least one ECU with the delayed ECU software update when it is determined that the vehicle is in the second mode of operations.

Abstract: Techniques disclosed herein are used for restoring deduplicated backup data from cloud-based storage and from multi-node replicated files systems, and they also may be used in more traditional data storage technologies. Pre-restore steps include analysis of deduplication indexes to identify data segments that are stored consecutively on storage media. Reading data in aggregate runs of consecutively stored data segments reduces interactions with storage media that hosts the deduplicated data and speeds up retrieval. Parallel reads from multiple storage devices in multi-node replicated file systems also speed up retrieval. An illustrative enhanced media agent pre-fetches data (stored in deduplicated form) in anticipation of read requests that are expected in the restore operation.

Abstract: A computer-implemented method to reduce Input/Output (I/O) command latency. The method includes receiving, by a first storage pool, a plurality of I/O commands, wherein the first storage pool includes a first throttling limit, and the first throttling limit. The method further includes determining a first processing rate of the first storage pool is at the first throttling limit. The method also includes determining a second processing rate of a second storage pool is below a second throttling limit, wherein the second storage pool is communicatively coupled to the first storage pool. The method includes sending, by the first storage pool to the second storage pool, one or more of the plurality of I/O commands. The method further includes processing, by the second storage pool, the one or more I/O commands of the plurality of I/O commands. The method includes returning processed I/O commands to the host.

Abstract: A technique manages drive space within a storage system having a main data services environment configured to perform data storage operations on behalf of a set of hosts and a simple data services environment configured to load the main data services environment. The technique involves, while the simple data services environment is running on the storage system, using the simple data services environment to load the main data services environment on to the storage system. The technique further involves, after the main data services environment is loaded on to the storage system, providing a drive space communication from the simple data services environment to the main data services environment. The technique further involves receiving, by the simple data services environment, allocation of drive space from the main data services environment in response to the drive space communication.

Abstract: Storage management techniques involve: obtaining a historical usage of storage capacity for a storage device, and a historical feature characterizing the historical usage of storage capacity; generating a predicted usage of storage capacity for the storage device based on the historical feature and a predictor for predicting a usage of storage capacity; and updating the predictor by comparing the historical usage of storage capacity with the predicted usage of storage capacity. Therefore, such techniques can accurately predict the usage of storage capacity for the storage device.