DISK CONTROL APPARATUS, DISK CONTROL METHOD, REMOTE DISK CONTROL APPARATUS, AND REMOTE DISK CONTROL METHOD
First Claim
1. A remote disk control apparatus for controlling input/output of data of a storage disk device according to an input/output request from a host, comprising:
- a cache memory which stores a part of the data of said storage disk device;
a management table which indicates whether a track of said storage disk device has been initialized to a predetermined track format;
a control unit which creates said track format referring to said management table when an input/output request is received from said host; and
a remote unit which transfers the initialization information of said management table to an another disk control apparatus of a secondary center according to a copy instruction from said host.
0 Assignments
0 Petitions
Accused Products
Abstract
A disk control apparatus formats each track of a storage disk device in a short time. The disk control apparatus (1) has a cache memory (14) which stores a part of data, a management table (20) which indicates whether a track of the storage disk device (2) has been initialized to a predetermined track format, and control units (10, 12) which create the track format referring to the management table (20) when an input/output request is received from the host (3). The factory shipment format flag of this management table is set to “1” when factory formatting is executed, and the table is transferred to the disk. By this method, high-speed factory formatting is possible.
-
Citations
8 Claims
-
1. A remote disk control apparatus for controlling input/output of data of a storage disk device according to an input/output request from a host, comprising:
-
a cache memory which stores a part of the data of said storage disk device; a management table which indicates whether a track of said storage disk device has been initialized to a predetermined track format; a control unit which creates said track format referring to said management table when an input/output request is received from said host; and a remote unit which transfers the initialization information of said management table to an another disk control apparatus of a secondary center according to a copy instruction from said host. - View Dependent Claims (2, 3, 4)
-
-
5. A remote disk control method for controlling input/output of data of a storage disk device according to an input/output request from a host, comprising:
-
an initialization step of setting information to indicate whether a track of said storage disk device has been initialized to a predetermined track format in a management table; a control step of creating said track format referring to said management table when an input/output request is received from said host; and a remote step of transferring the initialization information of said management table to an another disk control apparatus of a secondary center according to a copy instruction from said host. - View Dependent Claims (6, 7, 8)
-
Specification