Concepts and technologies directed to dedicated optical distribution of computing resources in virtualized environments are disclosed herein. In various aspects, a system can include a processor and memory storing instructions that, upon execution, cause performance of operations. The operations can include receiving a virtual machine creation request that includes a virtual processing requirement and a virtual memory requirement for a virtual machine. The operations can include accessing a physical host infrastructure map that identifies remainder resources from physical host servers within a datacenter. The operations can include creating a simulation test routine and assembling a candidate resource set from the remainder resources. The operations can include establishing a dedicated processing path and a dedicated memory path for the candidate resource set. The operations can include initiating the simulation test routine on the candidate resource set via the dedicated processing path and the dedicated memory path.

In an embodiment, a system includes an energy source and an integrated circuit that is coupled to one or more memory devices via a plurality of memory channels. A memory controller in the integrated circuit is programmable with a plurality of identifiers corresponding to the plurality of channels, and is further programmable with a command and a first identifier associated with the command. Responsive to the command, the memory controller is configured to perform one or more calibrations on a subset of the plurality of channels for which corresponding identifiers of the plurality of identifiers match the first identifier. Other ones of the plurality of channels, for which the corresponding identifiers do not match the first identifier, do not perform the calibration.

Embodiments for handling configuration drift in a data storage system having a plurality of storage nodes. A configuration drift manager system defines a golden configuration dataset for the data storage system, obtains a current configuration dataset of each storage node of the plurality of storage nodes, each of the golden and configuration datasets comprising a plurality of sentences defining a node configuration parameter; determines a distance between each sentence of the golden configuration dataset with each other sentence of the current configuration datasets for each of the plurality of storage nodes; ranks each node based on a distance of its sentences with the golden configuration dataset, and triggers an action on a corresponding node based on its respective ranking.

Calibration of soft bit reference levels in a non-volatile memory system is disclosed. When the soft bit reference levels are to be calibrated, encoded data is read from a group of the memory cells. The encoded data is decoded and error corrected. Therefore, the original data that was programmed into the memory cells is recovered. The group of memory cells are sensed at candidate soft bit reference levels, and possibly other reference levels. For each candidate soft bit reference level, mutual information between the original programmed data and the data for that candidate soft bit reference level is determined. The mutual information serves as a good measure for how well the candidate soft bit reference level will aid in decoding the data. In an aspect, a soft bit reference level having the highest mutual information out of several candidates is selected as the calibrated soft bit reference level.

Techniques are disclosed relating to provisioning fault domain sets (FDS). In some embodiments, a computer server system implements an FDS for disseminating a storage service across a plurality of fault domains. To implement the FDS, in some embodiments, the computer server system access FDS data specifying a desired state of the FDS in which the storage service is disseminated across at least a particular number of fault domains. The computer server system may determine available resources of the plurality of fault domains and determine a current state of the FDS based on fault domains that have already been provisioned to the FDS. Based on at least the desired state of the FDS, the current state of the FDS, and the available resources, the computer server system provisions one or more additional fault domains to the FDS to reconcile the FDS's current state with the FDS's desired state.

A system and associated method for generating a test precondition. The system includes a test device and a storage device including user data blocks and system blocks. The test device reads, from the system blocks, an initial system data snapshot stored and represents a factory format; erases the system blocks and the user data blocks; writes data to selected user data blocks; generates system tables associated with the erasing and writing of the selected user data blocks; replaces the initial system data snapshot with the system tables; writes the replaced system tables to the system blocks; and performs one or more tests on the storage device.

A tape may be mounted into a tape drive. Mounting the tape into the tape drive may include loading the tape from a storage slot. The tape drive may request a first record of the tape from a tape storage subsystem. The tape drive may determine whether the first record of the tape exists in the tape storage subsystem. The tape drive may load the first record of the tape in random access memory (RAM) of the tape drive. The first record may include one or more data entries. The tape drive may append a new data entry to the first record. The first record may be transitioned to a second record upon being appended with the new data entry. The tape may be unmounted from the tape drive.

Tuning information associated with a storage device of a plurality of storage devices is received. One or more characteristics associated with the storage device are determined. The tuning information and the one or more characteristics are provided to the plurality of storage devices, wherein providing the tuning information causes a set of the plurality of storage devices to apply the tuning information based on the one or more characteristics.

In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may: receive performance information for a base workload; determine multiple threshold values of multiple storage media layers of each IHS of a storage cluster based at least on the performance information for the base workload and multiple inventory information respectively associated with multiple storage media layers of each IHS of the storage cluster; receive multiple condition values respectively associated with the multiple storage media layers of an IHS of the storage cluster; determine that a condition value of the multiple condition values associated with a storage media layer of the multiple storage media layers is at or below a threshold value of the multiple threshold values associated with the storage media layer of the multiple storage media layers; and reduce a storage workload of a specific IHS of the storage cluster.

A system receives, via a graphical user interface (GUI), a user selection of one or more parameters indicative of a request to segment the memory device into partitions for use by a host system. Responsive to receiving, via the GUI, the user selection of the one or more parameters indicative of the request to segment the memory device into the partitions, the system configures a first partition of the partitions with one or more configuration settings based on the one or more parameters. To configure the first partition, the system determines a memory type from multiple memory types based on the one or more parameters, and configures the first partition of the partitions to operate as the determined memory type.