Lsi Corporation

Netapp, Inc.

Avago Technologies International Sales Pte. Limited

Jason M Stuhlsatz

Mohamad H El-Batal

Macen Shinsato

John R Kloeppner

Robert E Stubbs

Mark Ish

Keith W Holt

Dennis E Gates

Anant Baderdinni

Charles E Nichols

Jeremy D Stover

John Maynard Dunham

Lakshmana M Anupindi

Naman Nair

Debal Krishna Mridha

John V Sherman

Ron G Duren

Kakanuru Lakshmi Kanth Reddy

Embodiments presented herein provide for hot swappable connections to various storage devices. In one embodiment, a storage controller includes an interface operable to connect to at least one of a storage device and a midplane connected to a plurality of Non Volatile Memory Express (NVMe) storage devices. The storage controller also includes a processor operable to detect when the interface is connected to the mid-plane, to determine that the NVMe storage devices each have a x4 NVMe connection, and to communicate sideband signaling, including a reference clock, to the NVMe storage devices through the midplane via Inter-Integrated Circuit (I2C) upon determining that the NVMe storage devices each have a x4 NVMe connection.

NVMe drive detection from a SAS/SATA connector

A method and system for providing a customized storage container includes a generally rectangular housing and at least one printed circuit board contained within the rectangular housing. The customized storage container encloses a first row of interconnector modules that are positioned adjacent to a first, open end of the rectangular housing. The customized storage container also encloses a second row of interconnector modules positioned adjacent to the first, open end of the rectangular housing. At least one air vent is positioned along a side of the rectangular housing and adjacent to a second, closed end of the rectangular housing. According to one exemplary embodiment, the storage container can comprise a single printed circuit board for supporting the first and second row of interconnector modules. In another exemplary embodiment, the storage container can comprise two printed circuit boards for supporting the first and second rows interconnector modules.

Method and system for providing a customized storage container

Apparatus and systems for improved access to storage devices from the sides of sleds mounted in storage enclosures. Embodiments provide apparatus and systems for a sled in a storage enclosure that provides access to storage devices on either side of the sled when the sled is slid forward out of its enclosure. Multiple sleds may be enclosed within a single enclosure to permit access to a portion of the storage devices in the enclosure hence reducing the problems of instability of the rack if the enclosure is mounted near the top of the rack.

Apparatus and systems having storage devices in a side accessible drive sled

A data storage controller exposes information stored in a locally managed volatile memory store to a host system. The locally managed volatile memory store is mapped to a corresponding portion of a peripheral component interconnect express (PCIe) compliant memory space managed by the host system. Backup logic in the data storage controller responds to a power event detected at the interface between the data storage controller and the host system by copying the contents of the volatile memory store to a non-volatile memory store on the data storage controller. Restore logic restores a data storage controller state by copying the contents of the non-volatile memory store to the locally managed volatile memory store upon the application of power such that the data in the volatile memory store is persistent even in the event of a loss of power to the host system and or the data storage controller.

Data storage controller and method for exposing information stored in a data storage controller to a host system

Methods and systems for removably mounting a Solid State Drive (SSD) to a Printed Circuit Board (PCB) device without use of a tool. An exemplary system comprises a top portion and at least two flexible legs. Each leg comprises a vertical member attached to the top portion, and a tab for insertion into the PCB, the tab restricting the motion of the drive enclosure with respect to the PCB when inserted into the PCB, thereby allowing for removable attachment of the enclosure to the PCB without use of a tool. The drive enclosure itself is adapted to receive the SSD and adapted to align the SSD for physical coupling with a connector for the PCB.

Drive enclosures for tool-less removable mounting of solid state drives onto printed circuit board devices

A controller is provided that receives a single enclosure management (EM) serial bit stream from an expander or other device and divides the EM serial bit stream into multiple EM serial bit streams for delivery to multiple respective midplanes or backplanes. In this way, a separate EM serial bit stream is provided to each midplane or backplane without having to increase the number of ports that are available on the expander or other device that interfaces with the backplane or midplane.

Method and apparatus for dividing a single serial enclosure management bit stream into multiple enclosure management bit streams and for providing the respective bit streams to respective midplanes

A configurable storage array controller can be configured to either a single-processor configuration or a multi-processor configuration by configuring a data bus switch system.

Configurable storage array controller

A method for offloading a cache memory is disclosed. The method generally includes the steps of (A) reading all of a plurality of cache lines from the cache memory in response to an assertion of a signal to offload of the cache memory, (B) generating a plurality of blocks by dividing the cache lines in accordance with a RAID configuration and (C) writing the blocks among a plurality of nonvolatile memories in the RAID configuration, wherein each of the nonvolatile memories has a write bandwidth less than a read bandwidth of the cache memory.

Growing community of inventors

Alpharetta, GA, United States of America

Jason M Stuhlsatz