Emc Corporation

Tuvia Leneman

Lee Spechts

Natan Vishlitzky

Adi Ofer

Eli Leshem

Larry Pignolet

Ernest J Sachs

A method of writing data to a disk drive system including a plurality of disks and a plurality of heads, each head for writing data to a plurality of sectors on a surface of one of the plurality of disks, the method including:

System and method for writing data to a disk drive assembly to minimize the effect of a single head failure

A queued lock prioritizes access to a shared resource in a distributed system. Each unsuccessful requestor adaptively delays its next poll for the lock by a period determined as a function of its priority in the lock request queue and the average duration of a significant processor operation involving the resource.

Adaptive delay of polling frequencies in a distributed system with a queued lock

First and second pairs of pins and cooperative first and second pairs of pin receiving apertures are provided at the confronting connector faces of each of one or more data storage device carrier subassemblies and an interconnection board of a storage system card cage subassembly into which each data storage device carrier subassembly is slidably mounted. The first pin/aperture pair engage and cooperate first to prealign, mechanically support and vibrationally damp each data storage device carrier subassembly. The second/pin aperture pair engage and cooperate to secondly finely align a connector on each data storage device carrier subassembly with a mating connector on the storage system card cage subassembly, enabling hot-pluggable insertion and removal of each data storage device carrier subassembly into and out of the storage system card cage subassembly without physically damaging the confronting connectors of each data storage device carrier subassembly and storage system card cage subassembly interconnection board or causing electrical shorts in the connectors.

Hot-pluggable data storage device having vibration absorbing and

An interconnect device for a power supply blade having two flat sides comprising a first portion having a fiat surface for contact with one flat side of the blade, and a second portion having a flat surface facing the first flat surface for contact with the other flat side of the blade. One flat surface is translatable toward and away from the other flat surface to engage and disengage the blade, respectively.

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Newton, MA, United States of America

Tuvia Leneman