Reducing storage facility code load suspend rate by redundancy check

Patent metadata

Field	Value
Publication number	US-9286056-B2
Application number	US-201414281576-A
Country	US
Kind code	B2
Filing date	May 19, 2014
Priority date	May 19, 2014
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

Provided are techniques for code load processing. While performing code load processing of a set of modules of a same module type, it is determined that a first module in the set of modules is not in an operational state. It is determined that a second module is a redundant module for the first module. In response to determining that the second module is in an operational state and has already completed code update, the code load processing is continued. In response to determining that the second module is in an operational state and has not already completed code update, it is determined whether there is a third redundant module that is in an operational state. In response to determining that there is a third redundant module that is in an operational state, the code load processing is continued.

First claim

The invention claimed is:

1. A method for code load processing, comprising:
while performing code load processing of a set of modules of a same module type,
determining, with a processor of a computer, that a first module in the set of modules is not in an operational state;
in response to determining that there is at least one redundant module for the first module in the set of modules,
determining that a second module is a redundant module for the first module;
in response to determining that the second module is in an operational state and has already completed code update, continuing the code load processing;
in response to determining that the second module is in the operational state and has not already completed code update, determining whether there is a third module that is another redundant module for the first module and that is in an operational state; and
in response to determining that there is the third module that is in the operational state, continuing the code load processing; and

in response to determining that there is no redundant module for the first module, suspending the code load processing.

2. The method of claim 1 , further comprising:
in response to determining that the second module is in the operational state and has not already completed code update and that there is no third module that is another redundant module for the first module and that is in the operational state, suspending the code load processing.

3. The method of claim 1 , further comprising:
in response to determining that the third module is in the operational state, updating firmware for the second module while continuing to use the third module.

4. The method of claim 1 , wherein the set of modules form a component.

5. The method of claim 1 , wherein software is provided as a service in a cloud environment.

6. A computer system for code load processing, comprising:
one or more processors, one or more computer-readable memories and one or more computer-readable, tangible storage devices; and
program instructions, stored on at least one of the one or more computer-readable, tangible storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, to perform:
while performing code load processing of a set of modules of a same module type,
determining that a first module in the set of modules is not in an operational state;
in response to determining that there is at least one redundant module for the first module in the set of modules,
determining that a second module is a redundant module for the first module;
in response to determining that the second module is in an operational state and has already completed code update, continuing the code load processing;
in response to determining that the second module is in the operational state and has not already completed code update, determining whether there is a third module that is another redundant module for the first module and that is in an operational state; and
in response to determining that there is the third module that is in the operational state, continuing the code load processing; and

in response to determining that there is no redundant module for the first module, suspending the code load processing.

7. The computer system of claim 6 , wherein the operations further comprise:
in response to determining that the second module is in the operational state and has not already completed code update and that there is no third module that is another redundant module for the first module and that is in the operational state, suspending the code load processing.

8. The computer system of claim 6 , wherein the operations further comprise:
in response to determining that the third module is in the operational state, updating firmware for the second module while continuing to use the third module.

9. The computer system of claim 6 , wherein the set of modules form a component.

10. The computer system of claim 6 , wherein a Software as a Service (SaaS) is configured to perform the system operations.

11. A computer program product for code load processing, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code executable by at least one processor to perform:
while performing code load processing of a set of modules of a same module type,
determining that a first module in the set of modules is not in an operational state;
in response to determining that there is at least one redundant module for the first module in the set of modules,
determining that a second module is a redundant module for the first module;
in response to determining that the second module is in an operational state and has already completed code update, continuing the code load processing;
in response to determining that the second module is in the operational state and has not already completed code update, determining whether there is a third module that is another redundant module for the first module and that is in an operational state; and
in response to determining that there is the third module that is in the operational state, continuing the code load processing; and

in response to determining that there is no redundant module for the first module, suspending the code load processing.

12. The computer program product of claim 11 , wherein the program code is executable by the at least one processor to perform:
in response to determining that the second module is in the operational state and has not already completed code update and that there is no third module that is another redundant module for the first module and that is in the operational state, suspending the code load processing.

13. The computer program product of claim 11 , wherein the program code is executable by the at least one processor to perform:
in response to determining that the third module is in the operational state, updating firmware for the second module while continuing to use the third module.

14. The computer program product of claim 11 , wherein the set of modules form a component.

15. The computer program product of claim 11 , wherein a Software as a Service (SaaS) is configured to perform the computer program product operations.

Assignees

• IBM

Inventors

• Groover Michael P
• Han Robin
• Lin Edward H
• Su Yan
• Tang Wei
• Zhao ming zhi
• Zhou Yi

Classifications

• G06F8/65 Primary

  Updates (security arrangements therefor G06F21/57) · CPC title

• G06F8/60

  Software deployment · CPC title

• G06F8/443

  Optimisation · CPC title

• Y02D10/00

  Energy efficient computing, e.g. low power processors, power management or thermal management · CPC title

• G06F9/44536

  Selecting among different versions · CPC title