Originally posted by cl333r
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Originally posted by Ericg
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Normally the backplane in a hot swap system would have per-module power controllers and/or data buffers so that a module can be unplugged and replaced without affecting any of the other modules. Typical systems would have a number of modules of each type (CPU, disk, maybe even power supply) so that when one module was removed processing could continue on the remaining modules.
Any work on the failed/removed CPU/memory module would be lost, so any affected process would need to be restarted or restored from a checkpoint. For a disk module, the RAID software/firmware would handle it.
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