Abstract: Various implementations described herein relate to systems and methods for predicting and managing drive hazards for Solid State Drive (SSD) devices in a data center, including receiving telemetry data corresponding to SSDs, determining future hazard of one of those SSDs based on an a-priori model or machine learning, and causing migration of data from that SSD to another SSD.

Abstract: A device for storing key-value (KV) data includes non-volatile memory and a controller. The controller includes a decapsulator and a KV mapper to receive network data communicated over a network, for example using a layer 2 protocol. The decapsulator is configured to decapsulate a payload from the network data, the payload including a key-value pair and first information. The KV mapper is configured to receive the key-value pair and the first information decapsulated from the network data, and determine, based on the received key-value pair and first information, a first location of the non-volatile memory. The controller is further configured to store KV data corresponding to the key-value pair at the first location of the non-volatile memory based on the first information.

Abstract: Various implementations described herein relate to systems and methods for managing selective erasure in a Solid-State Drive (SSD) including receiving a selective erase command corresponding to erasing valid and invalid data mapped to a logical address and in response to receiving the selective erase command, erasing blocks in which one or more pages mapped to the logical address are located based on a mapping table that maps the logical address to the one or more pages. Both valid data and invalid data may be physically stored in one or more pages.

Abstract: A method includes enabling, by a processor, a user to create indication of configuration of a virtual subsystem. The processor enables the user to create, in the indication of configuration of the virtual subsystem, indication of a namespace associated with one of storage devices, indication of a controller, indication of a host, and indication of connectivity between a controller and a namespace or between a host and a namespace. The processor enables the user to select the indicated controller and the indicated namespace, select the indicated host and the indicated controller, and create, in the indication of configuration of virtual subsystem, indication of connectivity between the controller and the namespace and indication of connectivity between the host and the controller. The processor implements the configuration of the virtual subsystem in an appliance to cause the appliance to provide the host with storage access to the namespace via the controller.

Abstract: Various implementations described herein relate to systems and methods for predicting and managing drive hazards for Solid State Drive (SSD) devices in a data center, including receiving telemetry data corresponding to SSDs, determining future hazard of one of those SSDs based on an a-priori model or machine learning, and causing migration of data from that SSD to another SSD.

Abstract: A system for reading stored data may include one or more Ethernet drives and a controller, both configured to communicatively connect to a host device. The controller may receive a first read command from the host device, determine a first drive among the one or more Ethernet drives using the first read command and a mapping table, translate the first read command into a second read command, and send the second read command to the first drive. Responsive to receiving the second read command, the first drive may send a first remote data transfer instruction to the host device independent of the controller. The first remote data transfer instruction may include stored data read from the first drive to cause the host device to write the stored data read from the first drive to one or more memory buffers in the host device indicated by the second read command.

Abstract: A method of managing data storage using a management device that includes determining respective status information for a plurality of storage devices, and calculating, based on the status information, a respective cost for each of the plurality of storage devices using a cost function that includes one or more parameters including at least one of: a program/erase (P/E) parameter, a block error state parameter, a block error level parameter, and a workload parameter. The method further includes selecting a destination storage device of the plurality of storage devices based on at least some of the calculated costs, and writing data to the destination storage device.

Abstract: A method includes enabling, by a processor, a user to create indication of configuration of a virtual subsystem. The processor enables the user to create, in the indication of configuration of the virtual subsystem, indication of a namespace associated with one of storage devices, indication of a controller, indication of a host, and indication of connectivity between a controller and a namespace or between a host and a namespace. The processor enables the user to select the indicated controller and the indicated namespace, select the indicated host and the indicated controller, and create, in the indication of configuration of virtual subsystem, indication of connectivity between the controller and the namespace and indication of connectivity between the host and the controller. The processor implements the configuration of the virtual subsystem in an appliance to cause the appliance to provide the host with storage access to the namespace via the controller.

Abstract: In one embodiment a plurality of open channel solid state drives (SSDs) are implemented over a network comprised of a network switch having a plurality of nodes, a remote host connected to a first node of the network switch, a metadata server connected to a second node of the network switch, and an abstracted memory structure comprised of at least part of one of the plurality of open channel SSDs. In one embodiment, the remote host is configured to communicate with the metadata server by issuing a command identifying data related to the abstracted memory structure. In another embodiment, the metadata server is configured to communicate with the remote host by responding to the command and identifying a physical address corresponding to the identified data.

Abstract: A device and method dynamically optimize processing of a storage command within a storage system. The device and method execute a rule based on predetermined criteria and internal operation parameters of the storage system. An extended application program interface within the storage system provides internal operation parameters for use in execution of the rule. Based on execution of the rule, the storage system optimizes processing of the storage command.

Abstract: In one embodiment, a network of SSDs includes a switch with a plurality of powered ports configured to be communicatively coupled to a controller and a host client and a plurality of SSDs configured to be communicatively coupled to the plurality of powered ports. The switch is configured to deliver up to a predefined power level to each of the plurality of SSDs via the plurality of powered port. Each of the plurality of SSDs consumes power. The controller is configured to manage the predefined power level for each of the plurality of SSDs by identifying the power consumed by each of the plurality of SSDs and allocating a new power level to each of the plurality of SSDs based on the power consumed by each of the plurality of SSD. In one embodiment, the switch and the plurality of SSDs are configured to occupy a server rack space.

Abstract: A device for storing key-value (KV) data includes non-volatile memory and a controller. The controller includes a decapsulator and a KV mapper to receive network data communicated over a network, for example using a layer 2 protocol. The decapsulator is configured to decapsulate a payload from the network data, the payload including a key-value pair and first information. The KV mapper is configured to receive the key-value pair and the first information decapsulated from the network data, and determine, based on the received key-value pair and first information, a first location of the non-volatile memory. The controller is further configured to store KV data corresponding to the key-value pair at the first location of the non-volatile memory based on the first information.

Abstract: A device and method dynamically optimize processing of a storage command within a storage system. The device and method execute a rule based on predetermined criteria and internal operation parameters of the storage system. An extended application program interface within the storage system provides internal operation parameters for use in execution of the rule. Based on execution of the rule, the storage system optimizes processing of the storage command.

Abstract: Systems and methods including a database server application integrated with a non-volatile memory-based cache. The database system is configured for accelerating file system data file accesses of the database server application. The user can specify caching requirements in the terminology of the database server application. The system translates the specified caching requirements into cache directives and implements the cache directives in the non-volatile memory-based cache that satisfy the specified caching requirements.

Abstract: A method of storing data in a storage device is disclosed. In one embodiment, the method includes receiving a write command comprising write data to be written to the storage device. The method further includes determining whether the write data belongs to a first open stream of write data if a logical block address corresponding to the write data is consecutive to, or within a given distance from, a logical block address of the first open stream of write data. The method further includes updating the logical block address of the first open stream of write data to the logical block address corresponding to the write data and resetting a timer of the first open stream of write data if the write data is determined to belong to the first open stream of write data. The method further includes closing the first open stream of write data when the timer expires.

Abstract: A method for performing error correction for a plurality of storage drives and a storage appliance comprising a plurality of storage devices is disclosed. In one embodiment, the method includes generating a first set of parity bits from a first set of data of at least one of the plurality of storage devices, the first set of parity bits capable of correcting a first number of error bits of the first set of data. The method further includes generating a second set of parity bits from a concatenated set of the first data and a second set of data from at least another of the plurality of storage devices, the second set of parity bits capable of correcting a second number of error bits of the first set of data, the second number being greater than the first number.

Abstract: A storage appliance includes a first SSD, a second SSD, and a controller. The controller is able to calculate a first utilization parameter of the first SSD and a second utilization parameter of the second SSD. If the first utilization parameter is less than a threshold and the second utilization parameter exceeds the threshold, the controller identifies a data range stored on the first SSD to be removed. The removal of the data range from the first SSD causes the first utilization parameter to exceed the threshold. The controller then migrates the data range from the first SSD to the second SSD.

Abstract: A network storage appliance comprises solid state disks, a network interface adapter communicatively coupled to the solid state disks and a host client, a non-volatile semiconductor memory device communicatively coupled to the solid state disks and the network interface adapter, and a CPU communicatively coupled to the non-volatile semiconductor memory device and the network interface adapter. The non-volatile semiconductor memory device can receive data from the host client via the network interface adapter, store the data temporarily, and transfer the data to one of the solid state disks.

Abstract: A method for performing error correction for a plurality of storage drives and a storage appliance comprising a plurality of storage devices is disclosed. In one embodiment, the method includes generating a first set of parity bits from a first set of data of at least one of the plurality of storage devices, the first set of parity bits capable of correcting a first number of error bits of the first set of data. The method further includes generating a second set of parity bits from a concatenated set of the first data and a second set of data from at least another of the plurality of storage devices, the second set of parity bits capable of correcting a second number of error bits of the first set of data, the second number being greater than the first number.

Abstract: In one embodiment, a heterogeneous integrated solid state drive includes a plurality of solid state memory devices including at least one solid state memory device of a first type and at least one solid state memory device of a second type, a controller coupled to each of the plurality of solid state memory devices and an interface coupled to the controller. The controller is configured to receive at least one user-defined memory parameter and to create at least one namespace satisfying the at least one user-defined memory parameter in at least one of the plurality of solid state memory devices. In one embodiment, the at least one user-defined memory parameter is one of a group consisting of a capacity, a quality of service level, an assured number of I/O operations per second, a bandwidth, a latency, and an endurance.