Emc IP Holding Company LLC

Emc Corporation

Matthew J Borsini

Daniel Dufresne

Thomas Raymond Thibodeau

Ryan Cartland McDaniel

Spero Tsefrekas

Joseph Fenton

Douglas E Peeke

Walter A O'Brien, Iii

Robert P Wierzbicki

Ralph C Frangioso, Jr

C Ilhan Gundogan

Paul H Maier, Jr

Maida Boudreau

Thomas J Connor

Darrin Haug

Techniques for configuring a system may include selecting one of a plurality of I/O slots to be allocated a number of lanes connected to a processor; and responsive to selecting the one I/O slot, sending a selection signal to a multiplexer that selects the one I/O slot from the plurality of I/O slots and configures the number of lanes for use by the one I/O slot where the number of lanes connect the one I/O slot to the processor. The system may be a data storage system and the lanes may be PCIe lanes used for data transmission. For each I/O slot, an I/O module may be inserted, removed or replaced (e.g., removed and then replaced with a new I/O card). A management controller may select the one I/O slot and send the selection signal in accordance with one or more policies. The system may support hot plug I/O modules.

Flexible I/O slot connections

A status monitoring system includes a signal generation subsystem configured to receive a plurality of binary status signals from a plurality of monitored subcomponents and encode the plurality of binary status signals to generate a status signal indicative of the status of the plurality of monitored subcomponents. One or more processing subsystems are configured to receive the status signal and control a controlled subcomponent based, at least in part, upon the status signal.

Status monitoring system and method

A user-configurable decoder circuit is associated with a controlled subcomponent and is configured to receive a cumulatively-encoded status signal and compare the cumulatively-encoded status signal to a user-definable threshold that defines a subcomponent policy for the controlled subcomponent.

A signal generation subsystem is configured to receive a plurality of status signals from a plurality of monitored subcomponents within a system being monitored and generate a cumulatively-encoded status signal based, at least in part, upon the plurality of binary status signals, which is indicative of the overall health of the system being monitored.

A status monitoring system includes a signal generation subsystem configured to provide a status signal indicative of the status of one or more monitored subcomponents. A processing subsystem is associated with a controlled subcomponent and is configured to: assign a subcomponent policy to the controlled subcomponent, receive the status signal, compare the status signal to the subcomponent policy, and effectuate a procedure on the controlled subcomponent based, at least in part, upon the comparison of the status signal and the subcomponent policy.

An improved redundant computing apparatus includes a chassis assembly configured to (i) mount to a standard electronic equipment rack and (ii) consume substantially 1U of space in a particular direction (e.g., vertical height) within the standard electronic equipment rack. The chassis assembly includes a housing and a midplane disposed within the housing. The apparatus further includes a set of power supply/blower assemblies configured to connect to the midplane of the chassis assembly through a front of the housing in a field replaceable manner, and a set of computing devices configured to connect to the midplane of the chassis assembly through a back of the housing in a field replaceable manner. By way of example, the set of computing devices is adapted to move data into and out of a set of disk drives on behalf of a set of external host computers.

Techniques for redundant computing within a 1U form factor with improved resource partitioning and management

Described are a system and method for reading revision information from an adapter board that interfaces a disk drive using request and grant signals. An adapter board is in electrical communication with a disk drive and with a control board. The adapter board has a controller with memory for storing data, with a request input terminal for receiving a request signal from the control board requesting access to a disk drive, with a grant output terminal for transmitting a grant signal to the control board granting access to the disk drive, and with a power down input terminal for receiving a power down signal to turn off power to the disk drive. The controller enters a read mode of operation in response to receiving a power down signal on the power down input terminal to enable the data stored in the memory to be read.

Using request and grant signals to read revision information from an adapter board that interfaces a disk drive

Described is an Advanced Technology Attachment (ATA) disk drive module for use in a data storage system having an enclosure with slots constructed to receive Fibre Channel disk drive modules. The ATA disk drive module comprises an ATA disk drive, an adapter board connected to the ATA disk drive, and a carrier assembly including spaced apart carrier sleds mounted to the ATA disk drive and to the adapter board. The spaced apart carrier sleds have mechanical dimensions that enable the carrier assembly to slide into an enclosure slot constructed to receive a Fibre Channel disk drive module. The adapter board provides an electrical interface and a mechanical interface between the ATA disk drive and a midplane of the enclosure when the carrier assembly is inserted in the enclosure slot and the ATA disk drive module is plugged into the midplane.

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Northborough, MA, United States of America

Matthew J Borsini