METHOD TO MANAGE EXTERNAL INDICATORS FOR DIFFERENT SAS PORT TYPES

• US 20080168374A1
• Filed: 01/06/2007
• Published: 07/10/2008
• Est. Priority Date: 01/06/2007
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Lucas, Gregg S., Medlin, Robert E., Curnalia, Michael A., Blinick, Katherine T., Kawai, Yutaka
• Application Number:
  US11/620,652
• Publication Number:
  US 20080168374A1
• Time in Patent Office: Days
• US Class Current: 715/771
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices

Abstract

By use of a GUI (Graphical User Interface) or CLI (Command Line Interface) a user can issue a command to configure an external SAS Port as table routing mode or subtractive mode. The SAS switch receives and decodes the command. Subsequently, the SM asserts the appropriate indicator behavior for the port being addressed.

Claims

1. A method to manage external indicators for different SAS port types, said method comprising:

allowing a user to issue a command to a SAS switch module, said SAS switch module having a plurality of physical interface ports, each of said plurality of physical interface ports having an attribute type, an indicator, and an operating mode, said operating mode being either a table route mode, or a subtractive mode;

checking, by way of said SAS switch module, said attribute type of each of said plurality of physical interface ports;

programming, by way of said SAS switch module, each of said indicators associated with each of said plurality of physical interface ports to flash at one hertz rate when said operating mode is said table routing mode and at two hertz or faster rate when said operating mode is said subtractive mode; and

allowing said user to visually confirm said attribute type of each of said plurality of physical interface ports by inspection of each of said indicator associated with each of said plurality of physical interface ports.

2. The method in accordance with claim 1, further comprising:

receiving at said SAS switch module said command.

3. The method in accordance with claim 2, further comprising:

decoding, by way of said SAS switch module, said command.

4. The method in accordance with claim 3, wherein a plurality of universal iPass cables are plugged into said SAS switch module.

5. The method in accordance with claim 4, wherein said command is a command line interface (CLI) command.

6. The method in accordance with claim 4, wherein said command is communicated by way of a graphical user interface (GUI).

7. The method in accordance with claim 5, wherein each of said indicators associated with each of said plurality of physical interface ports when solid ‘

ON’

signifies transitions from un-cabled to cabled status and that a valid data connection has been established.

8. The method in accordance with claim 7, wherein each of said indicators associated with each of said plurality of physical interface ports flashes randomly to indicate normal operation and signify data communication activity.