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In this customer environment, there are 4 power740 systems.â€¨Customer use these 4 systems for high availability DB2 pureScale as,â€¨ DB node #1 on p740#1â€¨ DB node #2 on p740#2 â€¨CF node #1 on p740#3â€¨ CF node #2 on p740#4â€¨â€¨ Recently, power740#4 got a PCI backplane hardware issue that cause CF#2 node down and NW connection also lost between DB#2 and CF#2.â€¨ Due to the connection problem, DB#2 also gone offline as CF#2 was GPFS cluster manager at this time. The cluster manager exiled DB#2 from GPFS member.â€¨DB#2 instance got offline because it lost GPFS resource.â€¨â€¨We think a hardware problem shouldn't cause outage for resources on the other hardware.â€¨ Customer request us to improve pureScale system reliability.
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