A system can include a memory device with an array of memory cells and a machine learning operation component. The machine learning operation component can perform a machine learning computation in association with the array of memory cells. The system can also include a processing device that is operatively coupled with the memory device to perform operations that include setting the memory device to a first mode based on a first mode setting signal received from a host system, where in the first mode, the processing device exposes the array of memory cells to the host system and routes input data from the host system to the array of memory cells. The operations can also include, setting the memory device to a second mode, where in the second mode, the processing device exposes the machine learning operation component to the host system.

An exemplary access control system controls access to a computing system such as a data storage system. For example, the exemplary access control system includes a remote management system that receives a request to operate on an element of the computing system and generates a message based on the request and a first token for the remote management system that is associated with the request. The message includes data representative of a second token for the remote management system. The remote management system signs the message and transmits the signed message to the computing system, which is configured to verify and use the signed message, including the second token included in the signed message, to obtain and use a local access token to access and operate on the element in accordance with the request.

In one embodiment, a node coupled to a plurality of storage devices executes a storage input/output (I/O) stack having a plurality of layers including a persistence layer. A portion of non-volatile random access memory (NVRAM) is configured as one or more logs. The persistence layer cooperates with the NVRAM to employ the log to record write requests received from a host and to acknowledge successful receipt of the write requests to the host. The log has a set of entries, each entry including (i) write data of a write request and (ii) a previous offset referencing a previous entry of the log. After a power loss, the acknowledged write requests are recovered by replay of the log in reverse sequential order using the previous record offset in each entry to traverse the log.