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sillywalk a day ago

Nitpick: it's no longer iSeries, it's the unsearchable IBM i now. I believe it goes (System/38)->AS/400->AS400e->System i->iSeries->i5->i

> if one core of a processor in a x86 server dies, your server dies. This is not the case in the IBM Power environment.

I believe that having a spare processor core is new to POWER11. EDIT: No. I was wrong.

sllabres a day ago | parent [-]

You are right. I'm not working myself on these systems but they are often still called with their older name here due to the frequent renaming...

Regarding the processor: yes the processor spare is new to the Power11 but features like "Processor Instruction Retry" and "Alternative processor recovery" are older. Here are documents describing the feature for old 8284-22A (S822 with Power8 CPU) [1] or even older 8204-E8A (System Power 550 with Power6 CPU) [2]

[1] https://www.redbooks.ibm.com/redpapers/pdfs/redp5098.pdf (topic 4.3.4 and 4.3.5) [2] https://www.redbooks.ibm.com/redpapers/pdfs/redp4404.pdf