Lenovo (singapore) Pte. Ltd.

Michael Scott Mettler

Daryl Carvis Cromer

Jeffrey R Hobbet

Donald R Frame

Kenneth Dean Timmons

Scott David Ruppert

Matthew Brent Griffith

Masahiko Nagai

Stewart Lane Adams

A method and apparatus are disclosed for concatenating a first RAID and a second RAID. The apparatus includes a concatenation module and a direction module. The concatenation module concatenates a first Redundant Array of Independent Disks ('RAID') with a second RAID into a top-level RAID. The first RAID and the second RAID may have disparate operational characteristics. The direction module directs storage operations to one of the first RAID and the second RAID based on a direction policy.

Concatenating a first raid with a second raid

An apparatus and method are disclosed for distributing writes asymmetrically. An asymmetric distribution module calculates an asymmetric distribution of writes for a plurality of drives. A write module writes data to each drive in accordance with the asymmetric distribution of writes.

Apparatus and method for distributing writes asymmetrically among drives

An apparatus, system, and method are disclosed for memory upgrade optimization. A requirements modulereceives one or more of a capacity upgrade goalfor an overall capacity of the arrayand a performance upgrade goalfor an overall performance of the array. An analysis moduleidentifies a first potential capacity changethat can be achieved at a lower overall performance and a second potential capacity changethat can be achieved at a higher overall performance. A reconfiguration modulegenerates one or more of a first reconfiguration recommendationcalculated to yield an overall capacity improvement that takes into consideration the capacity upgrade goaland the first potential capacity changeand a second reconfiguration recommendationcalculated to yield an overall performance improvement that takes into consideration the performance upgrade goaland the second potential capacity change

Apparatus, system, and method for memory upgrade path optimization

An apparatus, system, and method are disclosed for memory configuration analysis. A classification moduledeterminesan overall performance of an arrayof memory devicesin a computer memory, wherein overall performance has a substantially inverse relationship with a highest quantity of members of a subset of the array and a substantially direct relationship with an individual performance capability of the members. A counting moduletakes a countof members of the arraywhose individual performance capability variesin a selected direction from the overall performance of the array. A comparison moduletakes a selected action such as issuing a memory configuration warningif the count crosses a predetermined thresholdcomprising a predetermined percentage for comparison with the count, as qualified by the individual performance capability, divided by an unqualified count of members of the array

Apparatus, system, and method for memory configuration analysis

A method and apparatus are disclosed for automatic solid state drive performance recovery. A detection module detects a first SSD exceeding a fragmentation threshold. A plurality of drives comprises the first SSD and stores a data copy of data stored on the first SSD. An erase module erases a mapping table for the first SSD. The mapping table maps Logical Block Addresses LBA to physical addresses for the first SSD. A rebuild module rebuilds the data and the mapping table on the first SSD from the data copy.

Method and apparatus for automatic solid state drive performance recovery

The instant invention broadly contemplates balancing of asymmetric RAID arrays based on application usage patterns. The instantly claimed invention broadly contemplates balancing the type of workload and delivery of the work load in asymmetric RAID arrays by intelligently implementing different types of applications on disks strategically positioned to deliver workload to the RAID channel that is most capable of handling the work load. The invention makes use of the fact that some applications are more large block, sequential transfer dependant while other applications are more small block, high random, high IOP dependent, and places these applications accordingly within the asymmetric RAID array.

Asymmetric load balancing for RAID storage systems

Systems and methods for managing adjacent track interference in a hard drive. An adjacent track interference potential is ascertained in a region of the hard drive, and data corruption is averted via scrubbing data in the region with ascertained adjacent track interference potential, wherein limits of this region are defined.

Preservation of hard drive data via dynamic band boundary definition

A computer implemented method, apparatus, and computer usable program code for preventing operational shock to a hard disk drive of a mobile computer. An exemplary method includes, responsive to activation by a user of an activation device associated with the mobile computer, changing a state of the activation device. The exemplary method also includes, responsive to the change of state of the activation device, issuing a priority standby command to the hard disk drive.

Halt state for protection of hard disk drives in a mobile computing environment

Systems and methods for managing adjacent track interference in a hard drive. Adjacent track interference potential is ascertained in at least one track, and data corruption is averted via scrubbing data in at least one track with ascertained adjacent track interference potential.

Preservation of hard drive data via preliminary detection of adjacent track interference potential

Two male guides protrude up from a dock and the bottom of a portable computer is formed with parallel female channels configured to receive the guides in a drop-down docking configuration. Accordingly, a user can slide the portable computer side-to-side across the male guides until the guides are tactiley detected by the user to be in the channels. The user then slides the portable computer back until the computer connector drops into engagement with the dock connector.

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Durham, NC, United States of America

Michael Scott Mettler