摘要:
An apparatus, system, and method are disclosed for concurrently relocating a RAID array. The apparatus includes an identification module, a designation module, and an implementation module. The identification module identifies an availability of a physical device within a donor arrayed storage device to offload a source drive of a relocation enclosure. The designation module designates an available physical device as a target drive and thereby designate the target drive and the source drive as a linked pair;. The implementation module implements a mirroring relationship between the target drive and the source drive. The apparatus, system, and method provide a dynamic relocation of the raid array, minimizing system downtime and maximizing efficient utilization of system resources.
摘要:
Provided are techniques for spare device management. Candidate devices are sorted into spare coverage groups by type. One or more candidate devices having closest fitting characteristics of a desired type are identified from the spare coverage groups. The identified one or more candidate devices are assigned to be spare devices for the spare coverage group. It is determined whether a desired number of spare devices have been assigned to the spare coverage group. In response to determining that the desired number of spare devices have not been assigned, a spare device having the closest fitting characteristics for every predetermined number of candidate devices having the closest fitting characteristics is assigned, until the desired number of spare devices having the closest fitting characteristics are assigned.
摘要:
An apparatus and method are disclosed to configure, format, and test, a data storage subsystem product. The method supplies a data storage subsystem product comprising one or more host computer ports, a processor, one or more data storage device ports, and one or more data storage devices interconnected to the one or more data storage device ports. The method further supplies a configuration appliance comprising a storage configuration. The method connects the configuration appliance to one of the one or more storage device ports, boots up the data storage subsystem product, discovers the configuration appliance by the data storage subsystem product, imports storage configuration data into the data storage subsystem product, formats the one or more data storage device, and tests the input and output data transfer rates for the data storage subsystem product, wherein the formatting and testing are initiated concurrently.
摘要:
Provided are a method, system, and article of manufacture, wherein a request is received for switching a logical volume from one state to another state, wherein the logical volume is in a mirrored state if data corresponding to the logical volume is mirrored from a first storage to a second storage, and wherein the logical volume is in a non-mirrored state if the data corresponding to the logical volume is not mirrored from the first storage to the second storage. A determination is made as to whether to perform the switching, in response to receiving the request.
摘要:
In a RAID storage system, a parity value is generated. The storage system includes a RAID adapter, a plurality of disk array processors managing corresponding sets of RAID storage drives, and a connecting fabric. The RAID adapter initiates a parity generation operation, parallel instructions are dispatched for the array processors to each generate a partial parity value from data blocks on drives on respective managed RAID storage drives, the partial parity value is received in the RAID adapter from each array processor, and the partial parity values are combined in the RAID adapter to generate a complete parity value. The parity value may be an actual parity block to be stored on a hard disk drive or may be a reconstructed data block in the event of a failed drive.
摘要:
An apparatus, system, and method are disclosed for integrating an enclosure. An initialization module initializes a second enclosure. A discovery module discovers a connection of the second enclosure to a first enclosure. An address module creates a valid address for the second enclosure. An assignment module assigns the address to the second enclosure. A power control module cycles power to the second enclosure to reinitialize the second enclosure and set the address.
摘要:
A data processing unit including a first active cooling device configured to respond to a first control signal and a second active cooling device configured to respond to a second control signal. The control signals may be any type of control signal suitable to control the operation of the first and second active cooling devices. The data processing unit also includes a first control function selectively capable of providing the first control signal and/or the second control signal, and a second control function selectively capable of providing the first control signal and/or the second control signal. Logic associated with the first and second control functions is included to determine which of the control functions will provide which control signal at a specific time. Logic and/or switching or isolation apparatus is also included to prevent both the first and second control functions from attempting to provide one of the control signals simultaneously.
摘要:
Circuit boards capable of receiving different sets of electrical devices are fabricated from raw boards of the same type by forming respective networks of electrically conductive traces with a common layout on the raw boards, including open circuits within the networks. Electrical device receivers and controllers are then loaded on the boards, and some of the open circuits are closed such that some of the boards have different patterns of closed circuits and thereby different interconnections. Some of the receivers can accommodate two different types of electrical devices, with some of the boards configured to support one type and the others another type. The loading of receivers and controllers, and the closing of open circuits, can be performed simultaneously with the placement of zero ohm resistors used for circuit closings. Numerous different circuit board configurations can thus be supported from a common supply of raw boards.
摘要:
An apparatus to detect a fiber channel miscabling event includes a module configured to identify a connection made between first and second unlike devices in a fiber channel topology. If an unlike connection identified to have been made the module enables an upstream port of the second device, leaving a downstream port of the second device disabled. A method to detect a fiber channel miscabling event includes detecting a fiber channel cable connection configuration, determining whether a connection is made between first and second unlike fiber channel units, and enabling an upstream port of the second fiber channel unit while keeping a downstream port of the second fiber channel unit disabled if an unlike connection is determined to have been made.
摘要:
A method is disclosed to configure one or more storage arrays. The method supplies a data storage and retrieval system comprising (N) data storage device assemblies, wherein each of said (N) data storage device assemblies comprises (M) data storage devices, wherein (N) is greater than or equal to 2, and wherein (M) is greater than or equal to 2. The method configures a first storage array to comprise the (i)th data storage device disposed in two or more of said (N) data storage device assemblies, wherein (i) is greater than or equal to 1 and less than or equal to (M).