Restoring a failed storage volume after removal of a storage device from an array
First Claim
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1. A method comprising:
- determining that a storage volume is in an abnormal state due to a hot-swappable storage device having been decoupled from the apparatus and then recoupled to the apparatus by a user, the storage volume comprising an array of separate storage devices that includes the storage device;
following a reset of the apparatus, detecting a universally unique identifier (UUID) stored on a partition of the storage device in response to the coupling;
enumerating UUIDs associated with the storage volume; and
in response to determining the UUID of the storage device is included in the enumerated UUIDs, reconfiguring the storage volume to include the storage device.
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Abstract
A storage device is detected as being decoupled from an apparatus. At least one partition of the storage device is part of a storage volume that includes an array of separate storage devices in an initial configuration prior to being decoupled. In response to the storage device being recoupled to the apparatus, a universally unique identifier (UUID) of the storage device is detected. In response to determining the UUID of the storage device was previously associated with the storage volume, the storage volume is reconfigured/restored to include the at least one partition of the storage device in the initial configuration.
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Citations
20 Claims
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1. A method comprising:
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determining that a storage volume is in an abnormal state due to a hot-swappable storage device having been decoupled from the apparatus and then recoupled to the apparatus by a user, the storage volume comprising an array of separate storage devices that includes the storage device; following a reset of the apparatus, detecting a universally unique identifier (UUID) stored on a partition of the storage device in response to the coupling; enumerating UUIDs associated with the storage volume; and in response to determining the UUID of the storage device is included in the enumerated UUIDs, reconfiguring the storage volume to include the storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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a data interface capable of being coupled to an array of separate, hot-swappable, storage devices that form a storage volume; a controller coupled to the data interface and configured to; determine that the storage volume is in a first state due to a selected one of the storage devices having been decoupled from the apparatus and then recoupled to the apparatus by a user; following a reset of the apparatus, detect a universally unique identifier (UUID) stored on a partition of the storage device in response to the coupling; enumerate UUIDs associated with the storage volume; and in response to determining the UUID of the storage device is included in the enumerated UUIDs, reconfigure the storage volume to include the storage device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system comprising:
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an array of separate, hot-swappable, storage devices that form a storage volume; a controller coupled to the array and configured to; determine that the storage volume is in an abnormal state due a selected one of the storage devices having been decoupled from the apparatus and then recoupled to the apparatus by a user; following a reset of the apparatus, detect a universally unique identifier (UUID) stored on a partition of the storage device in response to the coupling; enumerate UUIDs associated with the storage volume; and in response to determining the UUID of the storage device is included in the enumerated UUIDs, reconfigure the storage volume to include the storage device. - View Dependent Claims (19, 20)
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Specification