System for archival storage of data
First Claim
1. A secondary storage system for maintaining data units transferred from a primary storage system, the secondary storage system comprising:
- secondary storage media, wherein not all of the secondary storage media are in a powered-on mode at the same time, wherein the secondary storage media includes at least one storage medium always in the powered-on mode; and
metadata stored on one or more of the at least one storage medium always in the powered-on mode, wherein the metadata includes at least one attribute of a data unit in a secondary storage medium that is in a lower power mode of operation than the at least one storage medium always in the powered-on mode.
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Accused Products
Abstract
A secondary storage system for maintaining data units transferred from a primary storage system is provided. The secondary storage system includes secondary storage media. Not all of the secondary storage media are powered on at the same time. The secondary storage media includes at least one storage medium that is always in the powered-on mode. Metadata is stored in one or more of at least the one storage medium in the powered-on mode. The metadata includes at least one attribute of a data unit stored in a secondary storage medium that is in the lower power mode of operation than at least the one storage medium that is always in the powered-on mode.
42 Citations
21 Claims
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1. A secondary storage system for maintaining data units transferred from a primary storage system, the secondary storage system comprising:
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secondary storage media, wherein not all of the secondary storage media are in a powered-on mode at the same time, wherein the secondary storage media includes at least one storage medium always in the powered-on mode; and
metadata stored on one or more of the at least one storage medium always in the powered-on mode, wherein the metadata includes at least one attribute of a data unit in a secondary storage medium that is in a lower power mode of operation than the at least one storage medium always in the powered-on mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for maintaining data units transferred from a primary storage system in a secondary storage system including secondary storage media, wherein not all of the secondary storage media is in a powered-on mode at the same time, wherein the secondary storage media includes at least one storage medium always in the powered-on mode, the method comprising:
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determining metadata for one or more data units in secondary storage media in the secondary storage system, wherein metadata includes attributes for data units in at least one of the secondary storage media that is in a lower power mode than the at least one storage medium always in the powered-on mode; and
storing the metadata in the at least one storage medium always in the powered-on mode, wherein the attributes allow information about the data units in the at least one of the secondary storage medium that is at the lower power mode to be determined. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification