摘要:
A method is provided for cabling a plurality of hardware components. A chassis controller establishes a wireless connection to a wireless device. The chassis controller, via a wireless interface, transmits a chassis map to the wireless device over the wireless connection. The chassis controller, via the wireless interface, transmits to the wireless device, an indication of a first port to be cabled over the wireless connection, the first port. The first port is of a first hardware component of the plurality of hardware components. The chassis controller tests the first port to determine whether cabling of the first port has been performed correctly.
摘要:
A method and system for personalizing a plurality of parts are disclosed. All of these parts have an identical part number and one or more programmable functions. The method comprises the steps of employing in a first product a first of said parts; and employing in a second product, a second of said parts. Prior to normal operation of the first product, a first code is set in the first part, and this first code causes the first part to provide a first programmable function during normal operation of the first product. Prior to normal operation of the second product, a second code is set in the second part, and this second code causes the second part to provide a second programmable function during normal operation of the second product. The said second programmable function is different from the first programmable function.
摘要:
A system is provided. The system detects a dropped write from a hard disk drive (HDD). The system includes two or more HDDs, each being configured to define a data block spread across the two or more HDDs. The data block is configured to regenerate a checksum across the full data block during a read operation to detect the dropped write.
摘要:
Methods, systems, and computer program products are provided for dynamic selective memory mirroring in solid state devices. An amount of memory is reserved. Sections of the memory to select for mirroring in the reserved memory are dynamically determined. The selected sections of the memory contain critical areas. The selected sections of the memory are mirrored in the reserved memory.
摘要:
A system and method for error correction and detection in a memory system. The system includes a memory controller, a plurality of memory modules and a mechanism. The memory modules are in communication with the memory controller and with a plurality of memory devices. The mechanism detects that one of the memory modules has failed possibly coincident with a memory device failure on an other of the memory modules. The mechanism allows the memory system to continue to run unimpaired in the presence of the memory module failure and the memory device failure.
摘要:
A memory system with high availability is provided. The memory system includes multiple memory channels. Each memory channel includes at least one memory module with memory devices organized as partial ranks coupled to memory device bus segments. Each partial rank includes a subset of the memory devices accessible as a subchannel on a subset of the memory device bus segments. The memory system also includes a memory controller in communication with the multiple memory channels. The memory controller distributes an access request across the memory channels to access a full rank. The full rank includes at least two of the partial ranks on separate memory channels. Partial ranks on a common memory module can be concurrently accessed. The memory modules can use at least one checksum memory device as a dedicated checksum memory device or a shared checksum memory device between at least two of the concurrently accessible partial ranks.
摘要:
Methods are provided for detecting and correcting dropped writes in a storage system. Data and a checksum are written to a storage device, such as a RAID array. The state of the data is classified as being in a “new data, unconfirmed” state. The state of written data is periodically checked, such as with a timer. If the data is in the “new data, unconfirmed” state, it is checked for a dropped write. If a dropped write has occurred, the state of the data is changed to a “single dropped write confirmed” state and the dropped write error is preferably corrected. If no dropped write is detected, the state is, changed to a “confirmed good” state. If the data was updated through a read-modified-write prior to being checked for a dropped write event, its state is changed to an “unquantifiable” state.
摘要:
A method and apparatus for winding an advancing strand onto a spool having an out-turned conical end flange at each end of a cylindrical barrel utilizing a strand traverse guide reciprocated relative to the spool at a linear speed proportional to the relative rotational velocity of the spool. The end limits of reciprocation of the strand guide are established in relation to respective reference positions corresponding to what would be apices of the respective end flanges if the latter were not truncated. During each traverse of the strand guide toward an end flange, the number of turns wound onto the spool outward of the respective reference position is regulated in accordance with the effective winding radius of the spool as determed by measuring the length of strand wound onto the spool for a specified rotational movement thereof.
摘要:
Embodiments relate to a computer for transmitting data in a network. The computer includes at least one data transmission port configured to be connected to at least one storage device via a plurality of paths of a network. The computer further includes a processor configured to detect recurring intermittent errors in one or more paths of the plurality of paths and to disable access to the one or more paths based on detecting the recurring intermittent errors.
摘要:
Techniques are disclosed for managing a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards, switch modules and a management controller. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards and the switch modules may be operatively connected to the midplane. The switch modules may be configured to switch network traffic for the one or more server cards. The management controller may be configured to manage the switch modules via the fabric interconnect.