Back to results
US 2011/0035562 A1Published application
Providing mirroring write data
AssigneeHewlett-Packard Development Company, L.P.
InventorBlaine D. GAITHER
Life of this patent
Estimating the term…
Abstract
An apparatus, method, and system are described. In one embodiment, the system is configured to store, in a non-volatile memory, mirroring data intended for a member of a set of mirroring drives that is in a powered-down state.
Claims15
An apparatus, comprising:
- control logic configured to be operatively coupled to a non-volatile memory and to a plurality of drives organized in a mirroring configuration, the mirroring configuration comprising a primary drive and a secondary drive;
- and
- where the control logic functions to selectively provide mirroring write data intended to be written to the secondary drive to the non-volatile memory when the secondary drive is in a powered-down state.
A computer-readable medium storing computer-executable instructions that when executed by a computer cause the computer to perform a method, the method comprising:
- interfacing with a pair of drives operating as a pair of mirroring drives, where one member of the pair of drives is controlled to be in a powered-up, mirrored state and where one member of the pair of drives is controlled to be in a powered-down, mirroring state;
- controlling a write intended for the pair of drives to be provided to the drive in the powered-up, mirrored state;
- and
- controlling a write intended for the drive in the powered-down, mirroring state to be provided to a non-volatile memory instead of to the drive in the powered-down, mirroring state,
- where the write intended for the device in the powered-down, mirroring state is a mirroring write associated with the write intended for the drive in the powered-up, mirrored state.
2 more elements
A system, comprising:
- means for controlling a power state of members of a set of mirroring drives;
- and
- means for temporarily storing, in a non-volatile memory, mirroring data intended for a member of the set of mirroring drives that is in a powered-down state.
Dependencies are inferred from the claim text.