Computer system and data management method using the same
First Claim
1. A computer system comprising:
- a first storage system having a data storage extent for storing data sent from a host computer;
a second storage system connected to the first storage system, and having at least one actual replicated data storage extent associated with the data storage extent;
an archive appliance connected to the second storage system and having a storage medium associated with the replicated data storage extent in the second storage system;
a data copy unit configured to control copy processing for reading data from the data storage extent in the first storage system and writing the read data to a first actual replicated data storage extent in the second storage system in accordance with specific configuration information; and
a connection switching unit configured to change the specific configuration information so that a second actual replicated data storage extent, instead of the first actual replicated data storage extent, is associated with the data storage extent.
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Accused Products
Abstract
The present invention aims at preventing loss of the most recent data even if backup processing ends abnormally.
A computer system includes: a first storage system having a data storage extent for storing data sent from a host computer; a second storage system having at least one actual replicated data storage extent associated with the data storage extent; an archive appliance having a storage medium associated with the replicated data storage extent in the second storage system; a data copy unit for controlling copy processing for reading data from the data storage extent in the first storage system and writing the read data to a first actual replicated data storage extent in the second storage system in accordance with specific configuration information; and a connection switching unit for changing the specific configuration information so that a second actual replicated data storage extent, instead of the first actual replicated data storage extent, is associated with the data storage extent.
22 Citations
16 Claims
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1. A computer system comprising:
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a first storage system having a data storage extent for storing data sent from a host computer; a second storage system connected to the first storage system, and having at least one actual replicated data storage extent associated with the data storage extent; an archive appliance connected to the second storage system and having a storage medium associated with the replicated data storage extent in the second storage system; a data copy unit configured to control copy processing for reading data from the data storage extent in the first storage system and writing the read data to a first actual replicated data storage extent in the second storage system in accordance with specific configuration information; and a connection switching unit configured to change the specific configuration information so that a second actual replicated data storage extent, instead of the first actual replicated data storage extent, is associated with the data storage extent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A data management method in a computer system provided with a first storage system having a data storage extent, a second storage system connected to the first storage system and having at least one actual replicated data storage extent, and an archive appliance connected to the second storage system and having a specific storage medium, the data management method comprising:
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setting specific configuration information so that the data storage extent in the first storage system is associated with a first actual replicated data storage extent in the second storage system, and the first actual replicated data storage extent is associated with the specific storage medium in the archive appliance; storing data sent from a host computer in the data storage extent; executing copy processing for reading data from the data storage extent in the first storage system and writing the read data to the first actual replicated data storage extent in the second storage system in accordance with the specific configuration information; detecting if the copy processing has ended abnormally or not; and changing the specific configuration information so as to associate a second actual replicated data storage extent, instead of the first actual replicated data storage extent, with the data storage extent, if the copy processing is detected as having terminated abnormally. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification