Claims
- 1. A disk array comprising:
a plurality of data reproduction groups of disk units; a group of spare disks, each spare disk serving as a spare for each disk unit of said data reproduction groups; a first control unit, to be coupled to a host unit, for controlling input and output between said host unit and a cache memory; and a second control unit, coupled to said groups of disk units and said spare disks, for controlling input and output between said cache memory and said groups of disk units, wherein said second control unit includes a plurality of loop control portions and a fiber channel loop connecting each disk unit of said data reproduction group to one of said loop control portions, and wherein data transfer speed in said fiber channel loop is higher than data transfer speed in said disk units of said one of groups.
- 2. A disk array according to claim 1, wherein said loop control portion performs copying of data from said disk unit of the data reproduction group of disk units into said spare disk, and performs processing of read/write operation.
- 3. A disk array according to claim 2, wherein said copying and said processing of the read/write operation are performed at a time.
Priority Claims (1)
Number |
Date |
Country |
Kind |
11-162042 |
Jun 1999 |
JP |
|
Parent Case Info
[0001] The present application is a continuation of application Ser. No. 10/457,387, filed Jun. 10, 2003; which is a continuation of application Serial No. 09/382,774, filed Aug. 25, 1999, now U.S. Pat. No. 6,615,314, the contents of which is incorporated herein by reference.
Continuations (2)
|
Number |
Date |
Country |
Parent |
10457387 |
Jun 2003 |
US |
Child |
10768693 |
Feb 2004 |
US |
Parent |
09382774 |
Aug 1999 |
US |
Child |
10457387 |
Jun 2003 |
US |