Management of data redundancy based on power availability in mobile computer systems
First Claim
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1. A method comprising:
- initiating a split of a Redundant Array of Independent (or Inexpensive) Disks (RAID) volume of a mobile computer system after switching from powering the mobile computer system with an alternating current (AC) power source to powering the mobile computer system with a battery, said RAID volume including a first storage device and a second storage device; and
initiating a reduction of a power consuming state of said first storage device of the RAID volume while on battery power.
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Abstract
Disclosed herein are methods that may be implemented in a mobile computer system. An exemplary method may include initiating a split of a storage volume of the mobile computer system. The storage volume may comply with a fault tolerant storage technology. Suitable technologies include, but are not limited to, those based on Redundant Array of Independent (or Inexpensive) Disks (RAID). In one aspect, the initiation of the split of the storage volume may be based, at least in part, on power availability. Then, a reduction of a power consuming state of a first storage device of the volume may be initiated.
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Citations
17 Claims
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1. A method comprising:
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initiating a split of a Redundant Array of Independent (or Inexpensive) Disks (RAID) volume of a mobile computer system after switching from powering the mobile computer system with an alternating current (AC) power source to powering the mobile computer system with a battery, said RAID volume including a first storage device and a second storage device; and initiating a reduction of a power consuming state of said first storage device of the RAID volume while on battery power. - View Dependent Claims (2, 3, 4)
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5. A method comprising:
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in response to switching from alternating current (AC) power to battery power, initiating a split of a Redundant Array of Independent (or Inexpensive) Disks level one (RAID-1) volume of a mobile computer system, wherein the RAID-1 volume includes at least a first storage device of the mobile computer system and a second storage device of the mobile computer system; recording changes that are made to data of the first storage device in a change log; and initiating regeneration of the RAID-1 volume by copying only a subset of the data of the first storage device to the second storage device, wherein the subset includes data of the first storage device that was recorded as having been changed in the change log. - View Dependent Claims (6, 7)
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8. An article of manufacture comprising:
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a machine-accessible medium including at least one of a disk and a memory that provides instructions that if executed result in a machine performing operations including, initiating a split of a storage volume of a mobile computer system, the storage volume complying with a fault tolerant storage technology, based at least in part on whether power is provided from an outlet or from a direct current source of power, and stopping a disk of a first storage device of the storage volume from spinning after initiating the split, wherein the disk of the first storage device is included within a chassis of the mobile computer system. - View Dependent Claims (9, 10, 11, 12)
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13. A system comprising:
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a bus; a processor coupled with the bus; a DRAM memory coupled with the bus; instructions stored on the DRAM memory that if executed result in the processor performing operations including, initiating a split of a storage volume, the storage volume complying with a fault tolerant storage technology, based at least in part on whether power is provided from an alternating current source of power or a direct current source of power, and stopping a disk of a first storage device of the storage volume from spinning, wherein the disk of the first storage device is included within a chassis of the system that also includes the processor. - View Dependent Claims (14, 15, 16, 17)
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Specification