Patrick T Mcfarland

US Patent:

RE41162, Mar 2, 2010

Filed:

Jul 30, 2004

Appl. No.:

10/909249

Inventors:

Norbert Engel - Nuernberg, DE
Eunan Muldoon - Swindon, GB
Ralph Wadlinger - Heroldsberg, DE
Reginald L. Allen - Bolingbrook IL, US
Patrick W. McFarland - Chicago IL, US
Guatam Patwari - Munster IN, US
John H. Pokropinski - Woodridge IL, US
Gail E. Tate - Naperville IL, US
Ronnie E. Dean - Aurora IL, US

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

G06F 9/44

US Classification:

717173

Abstract:

Platform and/or application software on all online, machine/servers in a cluster is updated without manually taking each machine/server offline. Initially, platform and/or application software for updating is stored in respective directories in an APPLY phase. Next, the new platform and/or application software is activated with or without a trial/test phase in an ACTIVATE phase. Where the new platform and/or application software is activated with a trial/test phase, a ROLLBACK phase is either automatically or manually invoked by the application in the event of a failure of the new software for backing out the new platform and/or application software and reactivating the previous platform and/or application software. An OFFICLAL phase then transitions the new platform and/or application software to the official state followed by a REACTIVATE phase for reactivating the backup copy of the previous/old platform and/or application software after the new software has been made official.