Application server blade for embedded storage appliance

• US 7,464,214 B2
• Filed: 12/19/2006
• Issued: 12/09/2008
• Est. Priority Date: 04/23/2003
• Status: Active Grant

• Current Assignee: Dot Hill Systems Corporation (Seagate Technology Holdings Plc)
• Original Assignee: Dot Hill Systems Corporation (Seagate Technology Holdings Plc)
• Inventors: Davies, Ian Robert, Pecone, Victor Key, Kalwitz, George Alexander
• Primary Examiner(s): Kindred; Alford W
• Assistant Examiner(s): Martinez; David E
• Application Number:
  US11/612,503
• Publication Number:
  US 20070100933A1
• Time in Patent Office: 721 Days
• Field of Search: 710/62, 710/74, 710/100, 710/302
• US Class Current: 710/302
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 11/2005 using redundant communication controllers
• CPC Class Codes: G06F 11/2007 using redundant communication media
• CPC Class Codes: G06F 11/201 between storage system components
• CPC Class Codes: G06F 11/2028 eliminating a faulty processor or activating a spare
• CPC Class Codes: G06F 11/2035 without idle spare hardware
• CPC Class Codes: G06F 11/2046 where the redundant components share persistent storage G06F11/2043 takes precedence
• CPC Class Codes: G06F 11/2051 in regular structures
• CPC Class Codes: G06F 11/2092 Techniques of failing over between control units
• CPC Class Codes: G06F 3/0601 Interfaces specially adapted for storage systems
• CPC Class Codes: G06F 3/0673 Single storage device

Abstract

A server blade includes a printed circuit board (PCB), including a connector for connecting the blade to a backplane comprising a local bus, and a removal mechanism for use by a person to disconnect the connector from the backplane for removal of the blade from a chassis while the chassis is powered up. The server blade also includes an I/O link and a server, each affixed on the PCB. The server transmits packets on the I/O link to a storage controller enclosed in the chassis. The packets include commands to transfer data to at least one storage device controlled by the storage controller. A portion of the storage controller, affixed on the PCB, receives the packets from the server on the I/O link, and forwards the commands on the backplane local bus to another portion of the storage controller affixed on a separate PCB enclosed in the chassis.

Claims

1. A server blade, comprising:

a printed circuit board (PCB), including a connector for connecting the blade to a backplane comprising a local bus, and a removal mechanism for use by a person to disconnect said connector from said backplane for removal of the blade from a chassis while said chassis is powered up;

an I/O link, affixed on said PCB;

a server, affixed on said PCB, configured to transmit packets on said I/O link to a storage controller enclosed in said chassis, said packets including commands to transfer data to at least one storage device controlled by said storage controller; and

a portion of the storage controller, affixed on said PCB, configured to receive said packets from said server on said I/O link, and to forward said commands on said backplane local bus to another portion of said storage controller affixed on a separate PCB enclosed in said chassis.

2. The server blade of claim 1, wherein said I/O link comprises a serial link.

3. The server blade of claim 2, wherein said serial I/O link comprises a FibreChannel link.

4. The server blade of claim 2, wherein said serial I/O link comprises an Infiniband link.

5. The server blade of claim 2, wherein said serial I/O link comprises an Ethernet link.

6. The server blade of claim 1, wherein said I/O link is etched in said PCB.

7. The server blade of claim 1, wherein said removal mechanism is also configured for use by a person to connect said connector to said backplane during insertion of the blade into said chassis while said chassis is powered up.

8. The server blade of claim 1, wherein said portion of said storage controller comprises an interface controller for receiving said packets on said I/O link.

9. The server blade of claim 8, wherein said interface controller is further configured to forward said commands on said local bus to the remaining portion of the storage controller.

10. The server blade of claim 8, wherein said interface controller comprises a QLogic FibreChannel-to-PCIX interface controller.

11. The server blade of claim 8, wherein said interface controller comprises a JNIC FibreChannel-to-PCIX interface controller.

12. The server blade of claim 1, wherein said local bus comprises a PCIX bus.

13. The server blade of claim 1, further comprising:

a faceplate, coupled to said PCB, comprising at least one connector for coupling said server to a network.

14. The server blade of claim 1, wherein said commands comprise SCSI commands.

15. The server blade of claim 1, wherein said packets comprise FibreChannel packets.

16. The server blade of claim 1, wherein said packets comprise internet protocol (IP) packets.

17. The server blade of claim 1, wherein said connector is further configured to connect the blade to a second local bus on said backplane.

18. The server blade of claim 17, further comprising:

a second I/O link, affixed on said PCB.

19. The server blade of claim 18, wherein said server is further configured to transmit second packets on said second I/O link to a second storage controller enclosed in said chassis, said second packets including second commands to transfer data to at least one second storage device controlled by said second storage controller.

20. The server blade of claim 19, further comprising:

a portion of said second storage controller, affixed on said PCB, configured to receive said second packets from said server on said second I/O link, and to forward said second commands on said second backplane local bus to another portion of said second storage controller affixed on a separate PCB enclosed in said chassis.