Browse Prior Art Database

Dual Service Processor Backup System

IP.com Disclosure Number: IPCOM000061733D
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Sutton, AJ: AUTHOR [+2]

Abstract

Switchover capacity is provided for this multi-service processor (SVP) system. There are two sets of dual service processor engines. Each engine in a set has a file. Engine A writes all its changeable data into its file 1 and into file 2 associated with engine B. All changed data is then written through a channel-to-channel connection (CTC) of service processor engines of both sets into file 3. If engine A fails, engine B can take over using the data in file 2. If engine B fails, then engine C in the other dual pair takes over having received all the changed data on its file 3 via the channel-to-channel connections.

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Dual Service Processor Backup System

Switchover capacity is provided for this multi-service processor (SVP) system. There are two sets of dual service processor engines. Each engine in a set has a file. Engine A writes all its changeable data into its file 1 and into file 2 associated with engine B. All changed data is then written through a channel-to- channel connection (CTC) of service processor engines of both sets into file 3. If engine A fails, engine B can take over using the data in file 2. If engine B fails, then engine C in the other dual pair takes over having received all the changed data on its file 3 via the channel-to-channel connections.

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