International Business Machines Corporation

Globalfoundries Inc.

Xiaoyu Hu

Robert Haas

Evangelos Stavros Eleftheriou

Ilias Iliadis

Roman Alexander Pletka

Peter Mueller

Lokesh M Gupta

Michael T Benhase

Kevin J Ash

Yang Liu

Nikolas Ioannou

Ioannis Koltsidas

Yu-Cheng Hsu

Ajay Dholakia

Joseph S Hyde, Ii

Paul Henri Muench

Timothy James Hahn

Alfred Emilio Sanchez

Christian Cachin

John Thomas Peck

Mei Mei

Rene Pawlitzek

ZhiQiang Wang

Evangelos Elftheriou

Marko Vukolic

Rene A Pawlitzek

An I/O enclosure module is provided with one or more I/O enclosures having a plurality of slots for receiving electronic devices. A host adapter is connected a first slot of the I/O enclosure module and is configured to connect a host to the I/O enclosure. A device adapter is connected to a second slot of the I/O enclosure module and is configured to connect a storage device to the I/O enclosure module. A flash cache is connected to a third slot of the I/O enclosure module and includes a flash-based memory configured to cache data associated with data requests handled through the I/O enclosure module. A primary processor complex manages data requests handled through the I/O enclosure module by communicating with the host adapter, device adapter, and flash cache to manage to the data requests.

Integrating a flash cache into large storage systems

Allocating a resource of a storage device to a storage optimization operation. An available resource of the storage device is monitored. Determining an allocation proportion of the resource allocated to the storage optimization operation, based on at least one of historical running information and a predicted value of a performance improvement caused by the storage optimization operation. Allocating the resource of the storage device to the storage optimization operation based on the available resource and the allocation proportion.

Method and system for allocating a resource of a storage device to a storage optimization operation

A logic device for communicating with a memory package with a first protocol, communicating with a memory controller with a second protocol, and for performing a protocol conversion between the first and the second protocol.

Logic device

A pseudo peer-to-peer network system including several clients, each adapted to execute a path driver program. A path driver program is provided, including the steps of locating storage peers connected to the network via a network interface for storing or accessing data items provided in memories of storage peers by means of a global address table. The global address table is updated periodically by at least one configuration server of the pseudo peer-to-peer network. The network further includes at least one time server, which generates a global time clock to which local time clocks of all storage peers of the pseudo peer-to-peer network are synchronized such that a global address table updated by the configuration server is activated by all storage peers at the same scheduled time to be consistent throughout the pseudo peer-to-peer network at all times.

Storage system

A non-volatile solid state memory device and method for balancing write/erase cycles among blocks to level block usage. The non-volatile solid state memory device includes a memory unit having data stored therein and a controller with logic for programming the memory unit according to a monitored occurrence of an error during a read operation. The method includes monitoring an occurrence of an error during a read operation in a memory unit of the device and programming the memory unit according to the monitored occurrence of the error.

Memory management in a non-volatile solid state memory device

In one embodiment, a method of storing data includes storing a first copy of data in a solid state memory and storing a second copy of the data in a hard disk drive memory substantially simultaneously with the storing the first copy. In another embodiment, a system for storing data includes a solid state memory, at least one hard disk drive memory, and a controller for controlling storage of data in the solid state memory and the hard disk drive memory. Other methods, systems, and computer program products are also described according to various embodiments.

Reliability scheme using hybrid SSD/HDD replication with log structured management

A computer-implemented method of managing a memory of a non-volatile solid state memory device by balancing write/erase cycles among blocks to level block usage. The method includes monitoring an occurrence of an error during a read operation in a memory unit of the device, where the error is correctable by error-correcting code, and programming the memory unit according to the monitored occurrence of the error, where the step of monitoring the occurrence of an error is carried out for at least one block, and wherein said step of programming includes wear-leveling the monitored block according the error monitored for the monitored block.

A solid state storage device and method are provided. Multiple blocks are configured as storage memory for a solid state storage device, and each block includes multiple pages. A controller is configured to operate the solid state storage device. A free block of the multiple blocks is assigned a marker level by the controller. For a particular page of the multiple pages, each particular page of data is written to a block of the multiple blocks with a marker level corresponding to a level of dynamicity calculated by the controller for that particular page.

Container marker scheme for reducing write amplification in solid state devices

A method for automated validation and execution of cryptographic key and certificate deployment and distribution includes providing one or more keys; providing one or more key deployment points; and distributing the one or more keys to the one or more key deployment points in an automated manner based on a matrix or pattern mapping of each of the one or more keys to be distributed to each of the one or more key deployment points.

Automated validation and execution of cryptographic key and certificate deployment and distribution

A computer-implemented method of managing a memory of a non-volatile solid state memory device by balancing write/erase cycles among blocks to level block usage. The method includes: monitoring an occurrence of an error during a read operation in a memory unit of the device, wherein the error is correctable by error-correcting code; and programming the memory unit according to the monitored occurrence of the error; wherein the step of monitoring the occurrence of an error is carried out for at least one block; and wherein said step of programming comprises wear-leveling the monitored block according the error monitored for the monitored block. A computer system and a computer program-product is also provided. The non-volatile solid state memory device includes: a memory unit having data stored therein; and a controller with a logic for programming the memory unit according to a monitored occurrence of an error during a read operation. The method includes: monitoring an occurrence of an error during a read operation in a memory unit of the device; and programming the memory unit according to the monitored occurrence of the error.

A method for reducing data loss includes a first computing step for computing an intermediate result for each redundancy information entity of a redundancy set by processing respectively associated data information entities of a given data set on at least two main diagonals of a parity check matrix representing an error correction coding scheme. The method further includes a second computing step for computing the information content of the respective redundancy information entity dependent on the respective intermediate result.

Growing community of inventors

Rueschlikon, Switzerland

Xiaoyu Hu