Jung Torres
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Dual Processor as Redundancy
Do dual processor work as redundancy? If one fails will the server or PC still boot up? Or Dual CPU only speeds up the process ?
Lee W, MVP
While it's possible the BIOS/UEFI of a cpmputer might allow that, I've never seen it (It's not uncommon to see a "mirror" option for RAM on server class systems). Dual (and multi processor/multi core processors) just add the ability for additional threads to be executed at the same time.
Duel processors are not designed for redundancy.
CPUs themselves very rarely fail, but sometimes fault due to overheating if fans break, or an incredible amount of dust builds up. Generally, servers or high end workstastions have multiple, redundant and monitored fans, so this really not common either. If a CPU were to fail, it would generally render the machine inert.
If you need that sort of redundancy, it can be implemented with multiple servers, using either virtualisation or clustering.
CPUs themselves very rarely fail, but sometimes fault due to overheating if fans break, or an incredible amount of dust builds up. Generally, servers or high end workstastions have multiple, redundant and monitored fans, so this really not common either. If a CPU were to fail, it would generally render the machine inert.
If you need that sort of redundancy, it can be implemented with multiple servers, using either virtualisation or clustering.
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Modern dual CPU servers have their PCIe bus split between the two CPUs. If only one CPU is installed in the box then in many cases only certain PCIe slots light up.
If one processor fails, I've only seen one in all of my years and that was due to a mainboard blow-out, then there is a BIOS setting that can be set in many servers that will stop the system from booting on a FATAL ERROR or try to boot despite the problem.
EDIT: Oh, and keep in mind that the RAM associated with the failed CPU would no longer be available.
If one processor fails, I've only seen one in all of my years and that was due to a mainboard blow-out, then there is a BIOS setting that can be set in many servers that will stop the system from booting on a FATAL ERROR or try to boot despite the problem.
EDIT: Oh, and keep in mind that the RAM associated with the failed CPU would no longer be available.
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