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US 9,959,176 B2Granted
Failure recovery in shared storage operations
AssigneeRed Hat, Inc.
InventorsAdam Litke, Nir Soffer, Liron Aravot
Life of this patent
Estimating the term…
Abstract
Systems and methods for failure recovery in shared storage operations. An example method comprises: acquiring a lock with respect to a storage domain comprising a specified disk image; creating a transaction marker associated with the disk image; creating a component of a new volume associated with the disk image; destroying the transaction marker; and releasing the lock with respect to the storage domain.
Claims14
A method, comprising:
- acquiring, by a processing device, a lock with respect to a storage domain comprising a specified disk image;
- creating a transaction marker associated with the disk image, wherein the transaction marker is represented by a metadata file having a name comprising a pre-defined extension;
- creating a component of a new volume associated with the disk image;
- destroying the transaction marker by removing the extension from the name of the metadata file representing the transaction marker;
- and
- releasing the lock with respect to the storage domain.
3 more elements
A method, comprising:
- scanning, by a processing device running a first process, a specified storage area to compile a list of transaction markers;
- acquiring a lock with respect to the specified storage area;
- identifying, in the list, a first transaction marker that was modified by a second process before the lock has been acquired by the first process;
- removing the first transaction marker from the list;
- retrieving a second transaction marker from the list;
- destroying a storage object referenced by the second transaction marker;
- destroying the second transaction marker;
- and
- releasing the lock with respect to the specified storage area.
6 more elements
A computer-readable non-transitory storage medium comprising executable instructions that, when executed by a processing device, cause the processing device to:
- scan a specified storage area to compile a list of transaction markers;
- acquire a lock with respect to the specified storage area;
- identifying, in the list, a first transaction marker that was modified by another process before the lock has been acquired;
- removing the first transaction marker from the list;
- retrieve a second transaction marker from the list;
- destroy a storage object referenced by the second transaction marker;
- destroy the second transaction marker;
- and
- release the lock with respect to the specified storage area.
6 more elements
Dependencies are inferred from the claim text.