Distributed storage nodes having specialized hardware can be pooled for servicing data requests. For example, a distributed storage system can include a group of storage nodes. The distributed storage system can determine a subset of storage nodes that include the specialized hardware based on status information received from the group of storage nodes. The specialized hardware can be preconfigured with specialized functionality. The distributed storage system can then generate a node pool that includes the subset of storage nodes with the specialized hardware. The node pool can be configured to perform the specialized functionality in relation to a data request.

An apparatus includes an output bus configured to store data, a match table, one or more storage devices, and logic. The match table is configured to store a plurality of entries, each entry including a key value, wherein the match table specifies a matching entry in response to being queried by the query data. The one or more storage devices are configured to store operation information for each of the plurality of entries stored in the match table. The operation information specifies one or more instructions associated with each respective entry in the plurality of entries stored in the match table. The logic is configured to receive one or more operands from the output bus, identify one or more instructions from the one or more storage devices, and generate, based on the one or more instructions and the one or more operands, processed data.

Methods, systems, and devices for retiring pages of a memory device are described. An ordered set of device information pages may be used to store device information. The device information pages may be in non-volatile memory. Each page may include a counter value of the number of accesses to indicate if the page includes valid data. A flag associated with the page may be set when the counter value reaches a threshold, to retire the page. Upon power-up, the device may determine which page to use, based on the flags. The flag may be stored in the page, or may be separate (e.g., fuse elements). If fuse elements are used, the page may store a programming-in-process flag to indicate when programming of the fuse element may not have been completed before power loss, in which case the programming may be restarted after power is restored.

A method for block addressing is provided. The method includes moving content of a data block referenced by a logical block address (LBA) from a first physical block corresponding to a first physical block address (PBA) to a second physical block corresponding to a second PBA, wherein prior to the moving a logical map maps the LBA to a middle block address (MBA) and a middle map maps the MBA to the first PBA and in response to the moving, updating the middle map to map the MBA to the second PBA instead of the first PBA.

Techniques are provided for storing a row address of a defective row of memory cells to a bank of non-volatile storage elements (e.g., fuses or anti-fuses). After a memory device has been packaged, one or more rows of memory cells may become defective. In order to repair (e.g., replace) the rows, a post-package repair (PPR) operation may occur to replace the defective row with a redundant row of the memory array. To replace the defective row with a redundant row, an address of the defective row may be stored (e.g., mapped) to an available bank of non-volatile storage elements that is associated with a redundant row. Based on the bank of non-volatile storage elements the address of the defective row, subsequent access operations may utilize the redundant row and not the defective row.

Disclosed is a computing system which includes a storage device and a host. The storage device may include a nonvolatile memory, and the host may control the storage device based on a physical address of the nonvolatile memory and may send an asynchronous event request command to the storage device. The storage device may monitor the nonvolatile memory and may send an asynchronous event request corresponding to the asynchronous event request command to the host based on the monitoring result. The asynchronous event request may include requesting another command from the host based on the monitoring result. In some aspects, the host may send an erase command for erasing to erase a selected memory block of the nonvolatile memory to the storage device. In response, the storage device may send an erase pass response or an erase delay violation response to the host in response to the erase command.

The functions of a mainframe environment are expanded by leveraging the functions of an open environment. A second storage of an open system externally connected to a first storage of a mainframe system comprises a second main volume of an open environment generated in association with a main logical device of the second storage, and a second sub volume of an open environment generated in association with a sub logical device of the second storage; the first storage comprises a first main volume of a mainframe environment generated in association with the main logical device of the second storage, and a first sub volume of a mainframe environment generated in association with the sub logical device of the second storage; when the first storage receives a data processing request from a host, the first storage reflects the processing request in the second storage and completes the processing; and when the first storage receives an execution request of a prescribed function, the first storage causes the second storage to execute the function.

In an NVMe-based storage system, a host is connected to an NVMe controller through a PCIe bus, and the NVMe controller is connected to a storage medium. The NVMe controller receives from the host a data packet that carries payload data and an association identifier. The association identifier associates the payload data with a write instruction. The NVMe controller obtains the write instruction according to the association identifier, and then writes the payload data into the storage medium according to the write instruction.

In an NVMe-based storage system, a host is connected to an NVMe controller through a PCIe bus, and the NVMe controller is connected to a storage medium. The NVMe controller receives from the host a data packet that carries payload data and an association identifier. The association identifier associates the payload data with a write instruction. The NVMe controller obtains the write instruction according to the association identifier, and then writes the payload data into the storage medium according to the write instruction.

A storage capacity of a cloud storage system is determined. A recipe contains instructions for reclaiming storage of the cloud storage system. The storage capacity is insufficient to perform the entire recipe. In response, one or more data objects are deleted. A portion of the recipe is executed after the deletion. In some cases, local storage can be used for garbage collection when cloud storage is insufficient to perform even the portion of the recipe. Other embodiments are described and claimed.