Claims
- 1. A disk array control device comprising:
a plurality of channel interfaces which interface with a host computer; a plurality of disk interfaces which interface with a disk device; a first path being able to couple said channel interfaces and said disk interfaces in one to one ratio; and a second path coupling said channel interfaces and said disk interfaces, wherein data being read out of or written to said disk device is transferred via said first path, wherein control information for data transmission is transferred via said second path, and wherein bandwidth of said first path is broader than bandwidth of said second path.
- 2. A disk array control device comprising:
a plurality of channel interfaces which interface with a host computer; a plurality of disk interfaces which interface with a disk device; a data network being able to couple said channel interfaces and said disk interfaces in one to one ratio; and a control information network coupling said channel interfaces and said disk interfaces, wherein data being read out of or written to said disk device is transferred via said data network, and wherein control information for data transmission is transferred via said control information network independently of said data network.
- 3. A disk array control device comprising:
a plurality of channel interfaces which interface with a host computer; a plurality of disk interfaces which interface with a disk device; and a switch coupling said channel interfaces and said disk interfaces, wherein control information for data transmission is transferred via said switch.
- 4. A disk array control device comprising:
a plurality of channel interfaces which interface with a host computer; a plurality of disk interfaces which interface with a disk device; a first switch coupling said channel interfaces and said disk interfaces; and a second switch coupling said channel interfaces and said disk interfaces, wherein data being read out of or written to said disk device is transferred via said first switch, and wherein control information for data transmission is transferred via said second switch.
- 5. A disk array control device comprising:
a plurality of channel interfaces which interface with a host computer; a plurality of disk interfaces which interface with a disk device; and a switch coupled to said cannel interfaces via first path and to said disk interfaces via second path, wherein a channel interface communicates control information as to data transmission to said plurality of disk interfaces via said first path, and wherein a disk interface communicates control information as to data transmission to said plurality of channel interfaces via said second path.
- 6. A disk array control device coupled to a disk device comprising:
a first interface which interfaces with an external device; a second interface which interfaces with an external device; a first path being able to couple said first and said second interfaces by one to one ratio; and a second path coupling said first interface and said second interface, wherein data being read out of or written to said disk device is transferred via said first path, wherein control information for data transmission is transferred via said second path, and wherein bandwidth of said first path is broader than bandwidth of said second path.
- 7. A disk array control device coupled to a disk device comprising:
a first interface which interfaces with an external device; a second interface which interfaces with an external device; a data network being able to couple said first interface and said second interface by one to one ratio; and a control information network coupling said first interface and said second interface, wherein data being read out of or written to said disk device is transferred via said data network, and wherein control information for data transmission is transferred via said control information network independently of said data network.
- 8. A disk array control device coupled to a disk device comprising:
a first interface which interfaces with an external device; a second interface which interfaces with an external device; a first switch coupling said first interface and said second interface; and a second switch coupling said first interface and said second interface, wherein data being read out of or written to said disk device is transferred via said first switch, and wherein control information for data transmission is transferred via said second switch.
- 9. A disk array control device comprising:
a plurality of first interfaces which interface with an external device; a plurality of second interfaces which interface with an external device; and a switch coupled to said plurality of first interfaces via first path and to said plurality of second interfaces via second path, wherein a first interface communicates control information as to data transmission to said plurality of second interface via said first path, and wherein a second interface communicates control information as to data transmission to said plurality of first interface via said second path.
- 10. A disk array control device comprising:
a plurality of channel interface units having an interface with a host computer; a plurality of disk interface units having an interface with a disk device; a first path being able to couple said channel interface units and said disk interface units by one to one ratio; and a second path coupling said channel interface units and said disk interface units, wherein data being read out of or written to said disk device is transferred via said first path, wherein control information for data transmission is transferred via said second path, and wherein bandwidth of said first path is broader than bandwidth of -said -second path.
- 11. A disk array control device comprising:
a plurality of channel interface units having an interface with a host computer; a plurality of disk interface units having an interface with a disk device; a data network being able to couple said channel interface units and said disk interface units by one to one ratio; and a control information network coupling said channel interface units and said disk interface units, wherein data being read out of or written to said disk device is transferred via said data network, and wherein control information for data transmission is transferred via said control information network independently of said data network.
- 12. A disk array control devise comprising:
a plurality of channel interface units having an interface with a host computer; a plurality of disk interface units having an interface with a disk device; a first switch coupling said channel interface units and said disk interface units; and a second switch coupling said channel interface units and said disk interface units, wherein data being read out of or written to said disk device is transferred via said first switch, and wherein control information for data transmission is transferred via said second switch.
- 13. A disk array control device comprising:
a plurality of channel interface units having an interface with a host computer; a plurality of disk interface units having an interface with a disk device; and a switch coupled to said cannel interface units via first path and to said disk interface units via second path, wherein a channel interface unit communicates control information as to data transmission to said plurality of disk interface unit via said first path; and wherein a disk interface unit communicates a control information as to data transmission to said plurality of channel interface unit via said second path.
Priority Claims (1)
Number |
Date |
Country |
Kind |
10-264286 |
Sep 1998 |
JP |
|
Parent Case Info
[0001] The present application is a continuation of application Ser. No. 10/100,117, filed Mar. 19, 2002; which is a continuation of application Ser. No. 09/358,374, filed Jul. 21, 1999, now U.S. Pat. No. 6,385,681, the contents of which are incorporated herein by reference.
Continuations (2)
|
Number |
Date |
Country |
Parent |
10100117 |
Mar 2002 |
US |
Child |
10436253 |
May 2003 |
US |
Parent |
09358374 |
Jul 1999 |
US |
Child |
10100117 |
Mar 2002 |
US |