Managing storage space in storage systems
First Claim
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1. A method for use in managing storage space in storage systems, the method comprising:
- evaluating metadata of a slice of a storage pool in a data storage system for returning the slice as free storage to the storage pool; and
based on the evaluation, affecting returning of the slice to the storage pool, wherein the metadata of the slice indicates whether the slice includes user data, wherein affecting returning of the slice to the storage pool further comprising avoiding updating contents of the slice upon determining that the slice does not include user data.
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Abstract
A method is used in managing storage space in storage systems. Metadata of a slice of a storage pool in a data storage system is evaluated for returning the slice as free storage to the storage pool. Based on the evaluation, returning of the slice to the storage pool is affected. The metadata of the slice indicates whether the slice includes user data.
44 Citations
18 Claims
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1. A method for use in managing storage space in storage systems, the method comprising:
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evaluating metadata of a slice of a storage pool in a data storage system for returning the slice as free storage to the storage pool; and based on the evaluation, affecting returning of the slice to the storage pool, wherein the metadata of the slice indicates whether the slice includes user data, wherein affecting returning of the slice to the storage pool further comprising avoiding updating contents of the slice upon determining that the slice does not include user data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for use in managing storage space in storage systems, the system comprising:
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first logic evaluating metadata of a slice of a storage pool in a data storage system for returning the slice as free storage to the storage pool; and second logic affecting, based on the evaluation, returning of the slice to the storage pool, wherein the metadata of the slice indicates whether the slice includes user data, wherein affecting returning of the slice to the storage pool further comprising; third logic avoiding updating contents of the slice upon determining that the slice does not include user data. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification