Storage system and data processing system
First Claim
1. A storage system, comprising:
- a first storage device coupled to an information processing device and having a first controller and first disk drives, a first portion of said first disk drives being related to a first logical volume as a primary logical volume and a plurality of second portions of said first disk drives being related to a plurality of second logical volumes;
said first controller receiving a plurality of data, which are sent from said information processing device and are targeted to said first logical volume, and storing a first portion of said plurality of data in said first portion of said first disk drives and storing said first portion of said plurality of data in said second portions of said first disk drives in alternate shifts and transferring data stored in said second portions of said first disk drives to a second storage device;
said second storage device coupled to said first storage device and having a second controller and second disk drives, a third portion of said second disk drives being related to a third logical volume as a secondary volume forming a pair relationship with said primary volume;
said second controller receiving said data transferred from said first controller and storing a first portion of said transferred data in said third portion of said second disk drives.
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Abstract
A storage system comprises a data set storage region or storing a data set containing data and update data for managing this data, and a control section. The data set storage region is divided into a plurality of storage regions including a first storage region and a second storage region. The control section generates a first data set containing first data and first update data which is update data for same, stores at least the first data of this first data set in the first storage region, generates a second data set containing second data and second update data which is update data for same, and stores at least the second data of this second data set in the second storage region, which is separate from the first storage region.
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Citations
20 Claims
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1. A storage system, comprising:
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a first storage device coupled to an information processing device and having a first controller and first disk drives, a first portion of said first disk drives being related to a first logical volume as a primary logical volume and a plurality of second portions of said first disk drives being related to a plurality of second logical volumes; said first controller receiving a plurality of data, which are sent from said information processing device and are targeted to said first logical volume, and storing a first portion of said plurality of data in said first portion of said first disk drives and storing said first portion of said plurality of data in said second portions of said first disk drives in alternate shifts and transferring data stored in said second portions of said first disk drives to a second storage device; said second storage device coupled to said first storage device and having a second controller and second disk drives, a third portion of said second disk drives being related to a third logical volume as a secondary volume forming a pair relationship with said primary volume; said second controller receiving said data transferred from said first controller and storing a first portion of said transferred data in said third portion of said second disk drives. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A storage system, comprising:
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a first storage device coupled to an information processing device and having a first controller and first disk drives, a first portion of said first disk drives being related to a first logical volume as a primary logical volume and a plurality of second portions of said first disk drives being related to a plurality of second logical volumes; said first controller receiving a plurality of data, which are sent from said information processing device and are targeted to said first logical volume, and storing a first portion of said plurality of data in said first logical volume and storing said first portion of said plurality of data in said second logical volumes in alternate shifts and transferring data stored in said second logical volumes to a second storage device; said second storage device coupled to said first storage device and having a second controller and a second disk drives, a third portion of said second disk drives being related to a third logical volume as a secondary volume forming a pair relationship with said primary volume; said second controller receiving said data transferred from said first controller and storing a first portion of said transferred data in said third logical volume. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification