Method and apparatus for sending boot programs to workstation computers over a network in a controlled process

• US 6,748,525 B1
• Filed: 11/30/1999
• Issued: 06/08/2004
• Est. Priority Date: 11/30/1999
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Sposato, Dennis, Hubacher, Kenneth, Theiller, Philip C.
• Primary Examiner(s): Lee, Thomas
• Assistant Examiner(s): Trujillo, James K.
• Application Number:
  US09/451,954
• Time in Patent Office: 1,652 Days
• Field of Search: 713/1, 713/2, 713/100, 709/220, 709/221, 709/222
• US Class Current: 713/1
• CPC Class Codes: G06F 9/4416 Network booting; Remote initial program loading [RIPL]

Abstract

An apparatus and method for controlling boot programs sent by a server computer system to a plurality of client computer systems in response to a plurality of requests by the client computer systems. Specifically, the invention provides for a priority boot, a paced boot or a combination priority and paced boot enabled by a remotely controlled boot process.

Claims

1. A method for controlling the booting of a plurality of workstation computers having a set of RCB programs from one or more server computers having a BOOTCONTROL program comprising the steps of:

responsive to receiving a plurality of requests for an operating system from the plurality of workstation computers, determining whether each of the workstation computers has a priority number; and

responsive to determining that a workstation computer has a priority number, sending a boot program to the workstation computers based on the priority number according to instructions from the BOOTCONTROL program.

2. The method of claim 1 further comprising the step of:

responsive to determining whether each of the workstation computers has a priority number, sending a display message to each of the workstation computers.

3. The method of claim 1 wherein the BOOTCONTROL program employs a combined priority boot and paced boot, wherein the paced boot boots a number of workstation computers in a time period.

4. The method of claim 1 wherein the priority number is independent of any client-server relationship.

5. A programmable apparatus for controlling the booting of a plurality of workstations by one or more servers comprising:

programmable hardware comprising;

at least one server computer; and

a plurality of workstation computers;

a plurality of network interface cards connected to said programmable hardware;

a network connecting said server computer and said workstation computers;

a set of RCB programs installed on said workstation computers;

a BOOTCONTROL program installed on said server computer;

wherein, responsive to receiving a request for an operating system from a plurality of workstation computers, said server computer boots said workstation computers based on a paced boot according to instructions from said BOOTCONTROL program; and

wherein the paced boot boots a number of workstation computers in a time period.

6. The apparatus of claim 5 wherein said BOOTCONTROL program sends a display message to each of said workstation computers.

7. The apparatus of claim 5 wherein the BOOTCONTROL program employs a priority boot, wherein the priority boot boots the workstation computers based on a priority number.

8. The apparatus of claim 5 wherein the BOOTCONTROL program employs a combined priority boot and paced boot.

9. The programmable apparatus of claim 5 wherein said workstation computers are booted according to a priority number and the priority number is independent of any client-server relationship.

10. A computer readable memory in a server computer for controlling the sending of operating systems to a plurality of workstation computers having a set of RCB programs comprising:

a server computer readable storage medium;

a computer program stored in said storage medium; and

the storage medium, so configured by said computer program, responsive to a request from one or more workstation computers, causes the server computer to control the booting of the one or more workstation computers according to either a priority boot, a paced boot, or a combined priority and paced boot;

wherein the server computer boots the workstation computers based on the priority number; and

wherein the paced boot boots a number of workstation computers in a time period.

11. The computer program of claim 10 wherein said computer program farther causes a display message to be sent to said workstation computers.

12. The computer readable memory of claim 10 wherein said workstation computers are booted according to a priority number and the priority member is independent of any client-server relationship.

13. A computer implemented process to accomplish controlled booting of a plurality of workstation computers from a network server computer comprising:

using a workstation computer having a set of RCB programs, performing the following series of steps;

powering the workstation computer;

obtaining control of the workstation computer by means the set of RCB programs;

executing, without an operating system, the set of RCB programs to communicate with a network server;

communicating a request to said network server;

receiving a boot program from said network server computer;

booting the first computer from said boot program;

using a server computer having a BOOTCONTROL program, performing the following series of steps;

responsive to the request from the workstation computer, determining if the workstation computer has a priority number, and

responsive to determining that the workstation computer has a priority number, sending a boot program to said workstation computers based on the priority number according to instructions from the BOOTCONTROL program.

14. The computer implemented process of claim 13 wherein the priority number is independent of any client-server relationship.

15. A method for controlling at a server computer, the timing and ordering of booting of a plurality of client computers, the method comprising the computer implemented steps of:

executing instructions from a client computer first memory to load a boot code loader from a client computer second memory, wherein the client computer first memory is a BIOS ROM and the client computer second memory is a nonvolatile, read/write memory;

executing the boot code loader to load a control program from the client computer second memory;

executing the control program to load a set of programs from the client computer second memory without loading an operating system;

executing the set of programs to communicate a message to a network server;

responsive to receiving said message at the network server, executing a BOOTCONTROL program that boots the workstations computers using a paced boot; and

wherein the paced boot boots a number of workstation computers in a time period.

16. The method of claim 15 further comprising the step of responsive to instructions from said BOOTCONTROL program implementing a priority boot, wherein the priority boot boots the workstation computers based on a priority number.

17. The method of claim 15 further comprising the step of responsive to instructions from said BOOTCONTROL program implementing a combined priority and paced boot.

18. The method of claim 15 wherein said client computers are booted according to a priority number and the priority number is independent of any client-server relationship.

19. A computer program product on a computer-readable medium for controlling the booting of a plurality of client computers without an operating system, the computer program product comprising:

first instructions from a first memory for loading a set of programs from a second memory, wherein the first memory is a BIOS ROM and the second memory is a nonvolatile, read\write memory;

second instructions in a set of RCB programs for communicating a request to a network server;

third instructions in a BOOTCONTROL program in the network server for determining when to send an operating system to the client computer;

fourth instructions in the set of RCB programs for retrieving the operating system from the network server;

fifth instructions for initiating execution of the operating system based on a paced boot; and

wherein the paced boot boots a number of workstation computers in a time period.

20. The computer program product of claim 19 wherein the BOOTCONTROL program employs a priority boot, wherein the priority boot boots the workstation computers based on a priority number.

21. The computer program product of claim 20 wherein the BOOTCONTROL program employs a combined priority boot and paced boot.

22. The computer program of claim 19 wherein said client computers are booted according to a priority number and the priority number is independent of any client-server relationship.