How Much Does NVMe Flash Really Boost IBM i Performance?

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How Much Does NVM-Express Flash Really Boost IBM i Performance?
With the NVMe protocol, a storage overlay for the PCIe peripheral bus that allows flash to be addressed in a parallel fashion as flash in its own right and not as emulated disk storage using a SATA or SCSI protocol, the idea is to get those vintage storage drivers out of the way and let the OS kernel speak directly to the flash. This is done so the impressive – and seemingly always growing – I/O bandwidth of flash can actually be brought to bear to speed up applications.