EP0341230A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Data storage hierarchy and method for managing data therein
Assignee: International Business Machines Corp
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Filing: 1989-04-27
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Granted: —
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Expires: 2009-04-27
Abstract
Abstract A method for managing data in a data storage hierarchy, and a data storage hierarchy for implementing such method is disclosed. The data storage hierarchy includes a data catalog (60) and a plurality of data storage levels (10, 20, 40, 30). The data catalog stores information indicating data management rules for the data stored in the hierarchy. Data stored in the hierarchy are flagged upon being referenced by the host processor (50). The flagged data is managed according to the management rules during periods of low hierarchy activity. After the flagged data are managed, the flags are reset. The method, and hierarchy employing such, avoid problems associated with managing large quantities of data.
Inventors
- 👤 Connie Mae Clark
- 👤 Warren Bruce Harding
- 👤 Cindy Lou Gallo
- 👤 Horace Tin Sze Tang
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 09:16
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/06; G06F3/0601; G06F3/0602; G06F3/061; G06F3/0611; G06F12/00; G06F12/02; G06F12/08; G06F3/0628; G06F3/0638; G06F3/0668; G06F3/0671; G06F3/0683; G06F3/0686
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
76 words
A data storage hierarchy connected to a host processor (50) comprising: first and second data storage levels (10, 20, 30) connected to the host processor; a data catalog (60) connected to the host processor and storing information indicating the data management rules for the data stored in the data storage hierarchy; and means connected to the host processor for determining that data stored in the data storage hierarchy which has been referenced by the host processor.
Claim 2
Dependent Claim
76 words
A data storage hierarchy connected to a host processor (50) comprising: first and second data storage levels (10, 20, 30) connected to the host processor; a data catalog (60) connected to the host processor and storing information indicating the data management rules for the data stored in the data storage hierarchy; and means connected to the host processor for determining that data stored in the data storage hierarchy which has been referenced by the host processor.
Claim 3
Dependent Claim
26 words
The data storage hierarchy of claim 1 further comprising means connected to the host processor for managing the referenced data according to said data management rules.
Claim 4
Dependent Claim
35 words
The data storage hierarchy of claim 2 further comprising means connected to the host processor for preventing further managing of the referenced data after it has once been managed according to said data management rules.
Claim 5
Dependent Claim
25 words
The data storage hierarchy of claim 2 wherein said managing means manages the referenced data during periods of low activity in the data storage hierarchy.
Claim 6
Dependent Claim
80 words
A data storage hierarchy connected to a host processor (50) comprising: first and second data storage levels (10, 20, 30) connected to the host processor; a data catalog (60) connected to the host processor and storing information indicating the data transition rules for the data stored in the data storage hierarchy; and means connected to the host processor for flagging, in said data catalog, that data stored in the data storage hierarchy which has been referenced by the host processor.
Claim 7
Dependent Claim
80 words
A data storage hierarchy connected to a host processor (50) comprising: first and second data storage levels (10, 20, 30) connected to the host processor; a data catalog (60) connected to the host processor and storing information indicating the data transition rules for the data stored in the data storage hierarchy; and means connected to the host processor for flagging, in said data catalog, that data stored in the data storage hierarchy which has been referenced by the host processor.
Claim 8
Dependent Claim
40 words
The data storage hierarchy of claim 5 further comprising means connected to the host processor for transferring the flagged data between said first and said second data storage levels of the data storage hierarchy according to said data transition rules.
Claim 9
Dependent Claim
47 words
The data storage hierarchy of claim 6 further comprising means connected to the host processor for resetting the flag associated with the flagged data after transferring it between said first and said second data storage levels of the data storage hierarchy according to said data transition rules.
Claim 10
Dependent Claim
25 words
The data storage hierarchy of claim 6 wherein said transferring means transfers the flagged data during periods of low activity in the data storage hierarchy.
Claim 11
Dependent Claim
43 words
A data storage hierarchy of claim 5 wherein the storage levels comprising: a) a magnetic storage device connected to the host processor; b) an optical library connected to the host processor; c) a shelf for receiving optical recording media from said optical library.
Claim 12
Dependent Claim
32 words
The data storage hierarchy of claim 9 wherein said transferring means transfers the flagged data between said magnetic storage device, said optical library, and said shelf according to said data transition rules.
Claim 13
Dependent Claim
40 words
The data storage hierarchy of claim 10 wherein said resetting means resets the flag associated with the flagged data after transferring it between said magnetic data storage device, said optical library, and said shelf according to said data transition rules.
Claim 14
Dependent Claim
25 words
The data storage hierarchy of claim 10 wherein said transferring means transfers the flagged data during periods of low activity in the data storage hierarchy.
Claim 15
Independent Claim
94 words
A method for managing data in a data storage hierarchy connected to a host processor (50), characterized in that the data storage hierarchy includes a data catalog (60) connected to the host processor and stores information indicating the data management rules for the data stored in the data storage hierarchy, comprising the machine executed steps of: detecting the referencing of data in the data storage hierarchy by the host processor; and managing according to the data management rules, that data stored in the data storage hierarchy which has been referenced by the host processor.
Claim 16
Independent Claim
94 words
A method for managing data in a data storage hierarchy connected to a host processor (50), characterized in that the data storage hierarchy includes a data catalog (60) connected to the host processor and stores information indicating the data management rules for the data stored in the data storage hierarchy, comprising the machine executed steps of: detecting the referencing of data in the data storage hierarchy by the host processor; and managing according to the data management rules, that data stored in the data storage hierarchy which has been referenced by the host processor.
Claim 17
Dependent Claim
24 words
The method of claim 13 wherein said step of managing the referenced data occurs during periods of low activity in the data storage hierarchy.
References Cited (Backward Citations)
No citation records indexed.
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