8 Krypton

Re: throughput and IOPS

The context of that statement is in actually measuring IOPS...  What they are saying is that the number of I/Os processed per second is a measurement of it's own and is not dependent on the size of the IOs themselves.  ie: 1000 IOPS @ 4KB = 1000 IOPS, 1000 IOPS @ 32KB still = 1000 IOPS.  As IO size varies at a given IOPS, bandwidth will be affected.

Where IO size matters is as size climbs over 16KB and into the 64KB+ territory, the maximum number of IOPS sustainable by a given storage system will decrease.  ie:  IOPS and Bandwidth are inversely proportional.