Method for configuring a composite drive for a disk drive array

Details Method for configuring a composite drive for a disk drive array Method for configuring a composite drive for a disk drive array

1993-09-30

1996-04-23

Kriess, Kevin A.

Boots, shoes, and leggings

395700, 364DIG1, 3642481, G06F 1310

Patent

active

055112277

ABSTRACT:
A method for configuring at least one composite drive for a disk drive array controller. A disk drive array controller having a memory portion on which a list of composite drives which may be installed on a bus of a computer system is stored thereon is provided. A plurality of disk drives are then installed on the bus of the computer system. Each of the disk drives includes a user data region, a first portion of which contains a first field containing a composite drive ID number for a composite drive and a second field which indicates the total number of disk drives in the composite drive corresponding to the composite drive ID number and a second portion of which contains a position of the disk drive within the composite drive corresponding to the composite drive ID number. The composite drive ID for each of the disk drives is compared to the list of composite drives and a configuration is determined for each listed composite drive which matches at least one of the composite drive IDs stored in the disk drives. The configuration for each of the matching composite drives is then determined using the total number of disk drives listed in the first field of each of the disk drives having the matching composite drive ID and the positions of the disk drives within the composite drive matching the composite drive ID. Each of the matching composite drives are then mapped using the determined configurations.

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