Apparatus and method for updating I/O capability of a...

Details Apparatus and method for updating I/O capability of a... Apparatus and method for updating I/O capability of a...

2004-07-22

2008-08-12

Chen, Alan (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

C710S062000, C713S001000, C713S002000, C713S100000

Reexamination Certificate

active

07412545

ABSTRACT:
A hosting partition update mechanism allows updating the I/O capability of a logically-partitioned computer system in a way that minimally affects the performance and availability of I/O in the computer system. When an update is needed, a new hosting partition is created with the desired update(s). The I/O adapters in the current hosting partition are then migrated to the new hosting partition. The migration of an I/O adapter from the current hosting partition to the new hosting partition is relatively fast, thereby minimally impacting system performance and availability of I/O. Once all of the I/O adapters have been migrated to the new hosting partition, the current hosting partition may be kept as a backup, or may be eliminated. Providing a new or backup hosting partition allows updates to be performed in the new or backup hosting partition in a non-disruptive manner while the current hosting partition continues to service I/O requests.

REFERENCES:
patent: 6513115 (2003-01-01), Nock et al.
patent: 6684396 (2004-01-01), Brittain et al.
patent: 6912668 (2005-06-01), Brown et al.
patent: 2004/0221193 (2004-11-01), Armstrong et al.
patent: 2005/0010913 (2005-01-01), Chen
patent: 2006/0069753 (2006-03-01), Hu et al.

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