Claims
- 1. A method for producing backup data, comprising the steps of:
- inputting data into a data processing unit concurrently from a plurality of storage regions, each storage region residing on a different one of a plurality of multiwritten storage volumes of an external storage unit, a first of the storage volumes having a same data content as a second of the storage volumes, and an order of the data content of the storage region on a first of the plurality of the storage volumes being the same as an order of the data content of the storage region on a second of the plurality of the storage volumes; and,
- outputting the data from the data processing unit to backup volumes in such a manner that the data from each of said storage regions is (i) attached with information indicative of the order of the storage region from which the input data was inputted and (ii) arranged in the backup volumes in the order it was arranged in the storage region, whereby the data contents contained in one of said storage volumes are copied to said backup volumes.
- 2. A backup method as set forth in claim 1, further comprising the steps of accessing at least one of said storage volumes for purposes other than backup sampling, while the backup of the other storage volumes is sampled.
- 3. A method for producing backup data, comprising the steps of:
- inputting data, into a data processing unit, concurrently from a plurality of different addressable storage regions each of which resides on different multiwritten storage volumes of an external storage unit, wherein one of said storage volumes has the same data contents as another one of said storage volumes and the storage regions within said one storage volume have a same addressing structure as the storage regions within said another one of said storage volumes; and
- outputting and arranging the data from the data processing unit to backup volumes in such a manner that the input data from each of said addressable storage regions is arranged concurrently on different backup volumes, whereby the data contents contained in one of said storage volumes are copied to said backup volumes.
- 4. A backup method as set forth in claim 3, further comprising the steps of accessing at least one of said storage volumes for purposes other than backup sampling, and while the backup of the other storage volumes is sampled.
- 5. A method for producing backup data, comprising the steps of:
- inputting data into a data processing unit concurrently from a plurality of storage regions, each storage region residing on a different one of a plurality of multiwritten storage volumes of an external storage unit, wherein each of the storage regions within one of said storage volumes is located in a same order relative to storage regions within another one of said storage volumes, and the data contents contained in one of said storage regions within one of said storage volumes are the same as those contained in another corresponding one of said storage regions within another one of said storage volumes and
- outputting and arranging the input data from the data processing unit to backup volumes in such a manner that the input data is arranged in the backup volumes according to an order of the storage regions from which the input data was inputted, whereby the data contents contained in one of said storage volumes are copied to said backup volumes.
- 6. A backup method as set forth in claim 5, further comprising the step of accessing at least one of said storage volumes for purposes other than for producing the backup data, while the storage volumes other than said at least one are used for producing the backup data.
- 7. A method for producing backup data, comprising the steps of:
- inputting data, into a data processing unit concurrently from a plurality of different addressable storage regions, each of which resided on different volumes of multiwritten storage volumes of an external storage unit, wherein one of said storage volumes has data contents the same as another one of said storage volumes and has an addressing structure the same as that of said another one of said storage volumes; and
- outputting the input data from the data processing unit to backup volumes in such a manner that the input data from each of said addressable storage regions is (i) attached with information indicative of an address order of the original storage region from which the input data was inputted and (ii) arranged in the address order as it was in the original storage region, whereby the data contents contained in one of said storage volumes are copied to said backup volumes.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-239260 |
Sep 1992 |
JPX |
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Parent Case Info
This is a continuation of U.S. application Ser. No. 08/112,114 filed Aug. 26, 1993, now abandoned.
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4424561 |
Stanley et al. |
Jan 1984 |
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Kim et al. |
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4914575 |
Kiara et al. |
Apr 1990 |
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4964037 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
112114 |
Aug 1993 |
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