DATA STORAGE SUBSYSTEMS CONSISTING

Brand	Owner (click to sort)	Address	Description
E-RAID	I. I. S. Intelligent Information Systems Ltd.	I. I. S. Building New Industrial Park Yokneam 20792 Israel	DATA STORAGE SUBSYSTEMS CONSISTING OF A DISK CONTROLLER AND AN ARRAY OF COMPUTER DISK DRIVES, FOR USE IN MASS STORAGE USING RAID TECHNOLOGY AND FOR DATA BACK-UP IN VARIOUS OPERATING SYSTEMS;
HITCACHE	Hitachi America, Ltd.	50 Prospect Avenue Tarrytown NY 10591	data storage subsystems consisting of an interface disk controller, power supply and disk drives;
HITRAID	Hitachi America, Ltd.	50 Prospect Avenue Tarrytown NY 10591	data storage subsystems consisting of an interface disk controller, power supply and disk drives;HIT-RAID;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

According to this invention, in an environment in which are intermixed a plurality of storage subsystems with different processing performance, volumes are automatically relocated according to the state of use of each storage subsystem. A storage system comprises a plurality of storage subsystems 1, 2 with different processing performance. When unevenness occurs in the states of use of the storage subsystems 1, 2, and movement of a volume 2A becomes necessary, a management server 3 issues an instruction for volume movement to the copy source system 2 and to the copy target system 1 (S1). The management server 3 notifies a service-providing server 4 of the volume movement (S2). At the copy source, the volume 2A is allocated to a dummy volume 2B (S3), and at the copy target, an unused volume 1C is allocated to a dummy volume 1B (S4). Then volume copying is executed, and the volume is moved between the storage subsystems 1, 2.