Abstract: A storage system includes a NAND storage media and a nonvolatile storage media as a write buffer for the NAND storage media. The write buffer is partitioned, where the partitions are to buffer write data based on a classification of a received write request. Write requests are placed in the write buffer partition with other write requests of the same classification. The partitions have a size at least equal to the size of an erase unit of the NAND storage media. The write buffer flushes a partition once it has an amount of write data equal to the size of the erase unit.

Abstract: A storage system includes a NAND storage media and a nonvolatile storage media as a write buffer for the NAND storage media. The write buffer is partitioned, where the partitions are to buffer write data based on a classification of a received write request. Write requests are placed in the write buffer partition with other write requests of the same classification. The partitions have a size at least equal to the size of an erase unit of the NAND storage media. The write buffer flushes a partition once it has an amount of write data equal to the size of the erase unit.

Abstract: Technology described herein provides an improved system architecture for offloading infrastructure tasks using a multi-root switch with logic to route, via a switch, application data in a data transfer message between a physical storage device and a host system, the host system interfacing with a virtual function of an IPU, by remapping a transaction identifier field in the data transfer message between a first transaction identifier associated with the virtual function and a second transaction identifier associated with the physical storage device, where the physical storage device is managed by the IPU, and where to route the application data between the host system and the physical storage device includes to bypass temporary storage of the application data in a memory local to the IPU. In some examples a remapping table holds the first transaction identifier and the second transaction identifier.

Abstract: A method is described. The method includes constructing a bitmap having a first dimension organized into bins of logical block addresses (LBA bins) and a second dimension organized into bins of physical block addresses (PBA bins). Coordinates of the bitmap indicate whether respective physical blocks of non volatile memory within one or more SSDs that fall within a particular PBA bin are being mapped to by an LBA that falls within a particular one of the LBA bins. The method includes using the bitmap during a rebuild of an LBA bin of an LBA/PBA table to avoid reading meta data for physical blocks that are not mapped to by an LBA that falls within the LBA bin.

Abstract: Device virtualization techniques can enable physical I/O devices (such as PCIe devices or other I/O devices) to appear as virtual I/O devices, while also enabling selective exposure of information regarding the physical I/O devices to enable the native drivers of the physical I/O devices to be run. In one example, one or more physical I/O devices associated with a virtual I/O device are locked, and an interface is monitored for requests to those physical I/O devices. The device can be unlocked in response to a request to a predetermined address. When a physical I/O device is locked, read requests to read an identifier of the physical device are blocked, and a value associated with the virtual I/O device is provided. When the physical I/O device is unlocked, read requests to read an identifier of the physical I/O device are forwarded to the physical I/O device.

Abstract: A host Flash Translation Layer (FTL) synchronizes host FTL operations with the drive FTL operations to reduce write amplification and over-provisioning. Embodiments of FTL synchronization map, at the host FTL software (SW) stack level, logical bands in which data is managed, referred to as host bands, to the physical bands on a drive where data is stored. The host FTL tracks validity levels of data managed in host bands to determine validity levels of data stored in corresponding physical bands, and optimizes defragmentation operations (such as garbage collection processes and trim operations) applied by the host FTL SW stack to the physical bands based on the tracked validity levels.

Abstract: Systems, apparatuses, and methods provide for a memory controller to manage a tiered memory including a zoned namespace drive memory capacity tier. For example, a memory controller includes logic to translate a standard zoned namespace drive address associated with a user write to a tiered memory address write. The tiered memory address write is associated with the tiered memory including the persistent memory cache tier and the zoned namespace drive memory capacity tier. A plurality of tiered memory address writes are collected, where the plurality of tiered memory address writes include the tiered memory address write and other tiered memory address writes in the persistent memory cache tier. The collected plurality of tiered memory address writes are transferred from the persistent memory cache tier to the zoned namespace drive memory capacity tier, via an append-type zoned namespace drive write command.

Abstract: High performance parity-based Redundant Array of Independent Disks (RAID) on Zoned Namespaces Solid State Drives (SSD)s with support for high queue depth write Input Output (IO) and Zone Append command is provided in a host system. The host system includes a stripe mapping table to store mappings between parity strips and data strips in stripes on the RAID member SSDs. The host system also includes a Logical to Physical (L2P) table to store data block addresses returned by the Zone Append command.

Abstract: An embodiment of an electronic apparatus may comprise a processor, memory communicatively coupled to the processor, and circuitry communicatively coupled to the processor and the memory to determine a group of available types of persistent memory devices and a set of characteristics associated with each type of persistent memory device of the group of available types of persistent memory devices, determine of a set of requirements for a storage system, and determine a deployment configuration for the storage system with a lowest storage acquisition cost based on the group of available types of persistent memory devices, the sets of characteristics, and the set of requirements. Other embodiments are disclosed and claimed.

Abstract: An embodiment of a semiconductor apparatus may include technology to selectively determine a set of data for background refresh based at least in part on host-provided information, and refresh the determined set of data on a persistent storage media as a background operation. Other embodiments are disclosed and claimed.

Abstract: Techniques to facilitate an out-of-band (OOB) management in a virtualization environment include examples of assigning an endpoint identifier to a domain mapped to physical memory addresses of one or more storage devices coupled with a computing platform. The domain may enable software or a device driver executed by a virtual machine (VM) to access, manage or control at least a portion of the one or more storage devices. Examples also include receiving or forwarding messages through an OOB communication link coupled with the computing platform to a management entity to facilitate OOB management of the software or the device driver executed by the VM.

Abstract: A system including a storage drive and a semiconductor apparatus coupled to the storage drive, is provided. The semiconductor apparatus may include one or more substrates and logic coupled to the one or more substrates, the logic coupled to the one or more substrates to: initiate managing resources of the storage drive and, if the storage drive loses capacity, determine an amount of capacity loss, create a reserved file that is associated with logical memory space in a file system, based on the amount of the capacity loss, and erase at least a portion of the reserved file so that logical memory space associated with an un-erased portion of the reserved file is usable by the storage drive.

Abstract: An embodiment of an electronic apparatus may include one or more substrates, and logic coupled to the one or more substrates, the logic to manage access to a storage system that includes a first persistent storage device and a second persistent storage device, capture input/output telemetry for a workload on the storage system, determine one or more write reduction factors and one or more write invalidation factors for the workload based on the captured input/output telemetry, and allocate storage for the workload between the first persistent storage device and the second persistent storage device based on the one or more write reduction factors and the one or more write invalidation factors. Other embodiments are disclosed and claimed.

Abstract: An embodiment of a semiconductor package apparatus may include technology to determine a stream classification for an access request to a persistent storage media, and assign the access request to a stream based on the stream classification. Other embodiments are disclosed and claimed.

Abstract: An embodiment of an electronic apparatus may include one or more substrates, and logic coupled to the one or more substrates, the logic to maintain a respective lookup table for each of two or more persistent storage devices in a persistent memory outside of the two or more persistent storage devices with a first indirection granularity that is smaller than a second indirection granularity of each of the two or more persistent storage devices, buffer write requests to the two or more persistent storage devices in the persistent memory in accordance with the respective lookup tables, and perform a sequential write from the persistent memory to a particular device of the two or more persistent storage devices when a portion of the buffer that corresponds to the particular device has an amount of data to write that corresponds to the second indirection granularity. Other embodiments are disclosed and claimed.

Abstract: According to various aspects, a storage system is provided, the storage system including a multiplicity of storage devices, and one or more processors configured to store user data on the multiplicity of storage devices, the stored user data being distributed among the multiplicity of storage devices together with redundancy data and with log data; generate a classification associated with the redundancy data and the log data to provide classified redundancy data and classified log data, and write the classified redundancy data and the classified log data on the respective storage device of the multiplicity of storage devices according to the classification associated therewith.

Abstract: Techniques to facilitate an out-of-band (OOB) management in a virtualization environment include examples of assigning an endpoint identifier to a domain mapped to physical memory addresses of one or more storage devices coupled with a computing platform. The domain may enable software or a device driver executed by a virtual machine (VM) to access, manage or control at least a portion of the one or more storage devices. Examples also include receiving or forwarding messages through an OOB communication link coupled with the computing platform to a management entity to facilitate OOB management of the software or the device driver executed by the VM.

Abstract: A system including a storage drive and a semiconductor apparatus coupled to the storage drive, is provided. The semiconductor apparatus may include one or more substrates and logic coupled to the one or more substrates, the logic coupled to the one or more substrates to: initiate managing resources of the storage drive and, if the storage drive loses capacity, determine an amount of capacity loss, create a reserved file that is associated with logical memory space in a file system, based on the amount of the capacity loss, and erase at least a portion of the reserved file so that logical memory space associated with an un-erased portion of the reserved file is usable by the storage drive.

Abstract: According to various aspects, a storage system is provided, the storage system including a multiplicity of storage devices, and one or more processors configured to store user data on the multiplicity of storage devices, the stored user data being distributed among the multiplicity of storage devices together with redundancy data and with log data; generate a classification associated with the redundancy data and the log data to provide classified redundancy data and classified log data, and write the classified redundancy data and the classified log data on the respective storage device of the multiplicity of storage devices according to the classification associated therewith.

Abstract: Systems and methods for issuing one or more write requests to a storage device, the system comprising one or more processors configured to generate one or more write requests, each write request comprising a respective data; tag each of the one or more write requests as a respective class from a plurality of classes, wherein the plurality of classes categorize data based on a rate at which it is written to the storage device; and issue the one or more write requests with their respective tags to the storage device, wherein the tag indicates to the storage device to write the first data proximate to data of the respective class within the storage device.