EP0474395A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Data storage hierarchy with shared storage level
Assignee: International Business Machines Corp
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Filing: 1991-08-20
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Granted: —
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Expires: 2011-08-20
Abstract
Abstract A data storage hierarchy which inherently allows for a level 1 storage file to be uniquely identified across an entire network is disclosed. A directory naming convention is employed which includes an internal identifier and a name for each subdivision of the network. Because each file can be uniquely identified across the network, a single level 1 storage space in a file space, or a directory therein, can be used for the entire network. Also, because of the inherent uniqueness of the naming system, common DASD control files otherwise required to map between level 1 storage files and their level 0 source files can be eliminated.
Inventors
- 👤 Matthew Joseph Anglin
- 👤 Gregory John Tevis
- 👤 Donald Paul Warren
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/10; Y; Y10; Y10S; Y10S707/00; Y10S707/99951; Y10S707/99956
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A data processing system including a host processor and a plurality of peripheral data storage devices arranged in a data storage hierarchy comprising: a first level of storage including storage space for a first file pool and a second file pool thereon; a second level of storage including storage space for a file space thereon; said host processor coupled to the level 0 and level 1 storage; and storage management means coupled to the host processor for instructing the host processor to manage the files in the first and second file pools, including transferring a file in either of the first and second file pools to the file space in said second storage level and providing the transferred file with a unique name within the file space, and for instructing the host processor to automatically recall the file to said first level storage upon an attempt to reference the file by a user.
Claim 2
Dependent Claim
21 words
A system as claimed in claim 1 wherein the first and second file pools are located in different operating system environments.
Claim 3
Dependent Claim
62 words
A system as claimed in claim 1 or claim 2, further comprising a level 0 catalog for each file pool, each catalog having an internal identifier for each file in the respective file pool which is unique to such file pool, the internal identifier used by the storage management means to create the name for each file transferred to the file space.
Claim 4
Independent Claim
49 words
A system as claimed in any preceding claim, further comprising a file pool identifier which is unique to the operating system in which the file pool resides, the file pool identifier used by the storage management means to create the name for each file transferred to the file space.
Claim 5
Independent Claim
48 words
A system as claimed in any preceding claim, further comprising an operating system identifier which is unique to the collection in which the operating system resides, the operating system identifier used by the storage management means to create the name for each file transferred to the file space.
Claim 6
Independent Claim
45 words
A system as claimed in any preceding claim, further comprising a collection identifier which is unique to the subnetwork in which the collection resides, the collection identifier used by the storage management means to create the name for each file transferred to the file space.
Claim 7
Independent Claim
45 words
A system as claimed in any preceding claim, further comprising a subnetwork identifier which is unique to the network in which the network resides, the subnetwork identifier used by the storage management means to create the name for each file transferred to the file space.
Claim 8
Independent Claim
128 words
A method for the storage management of a data storage hierarchy, the data storage hierarchy including level 0 storage including storage space for a first file pool and a second file pool thereon, level 1 storage including storage space for a file space thereon, and a host processor coupled to the level 0 and level 1 storage, the method comprising the steps of: selecting a management class for each file in the first and second file pools; managing the files in the first and second file pools according to their management class, including transferring a file in either of the first and second file pools to the file space; and creating a name for a file transferred to the file space which is unique to the file space.
Claim 9
Dependent Claim
38 words
The method of claim 8 wherein the step of creating further comprises using an internal identifier to create the name for each file transferred to the file space, the internal identifier being unique to the source file pool.
Claim 10
Dependent Claim
60 words
The method of claim 8 wherein the step of creating further comprises using a file pool identifier, operating system identifier, collection identifier, and subnetwork identifier to create the name for each file transferred to the file space, the file pool identifier, operating system identifier, collection identifier, and subnetwork identifier being unique to the respective operating system, collection, subnetwork, and network.
References Cited (Backward Citations)
No citation records indexed.
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