This will change dynamically.  FAST-VP uses metrics from the access history of data on the LUN to determine what to move between tiers.  Unless you have 100% identical workloads on two LUNs all the time, you'll rarely see the same distribution values.  Let us know if that helps!  Karl
Hello,  I've a question about two (or basicly multiple LUNs) on one Storage Pool. At first I created a SP with a total capacity of around 20 TB. Afterwards I created two equal sized LUNs. If I check the properties of the LUNs, they have a different "Distribution (%)" of the tiers. E.g. the Extreme Performance tier as 1,47% on LUN 1 and 5,73% on LUN 2.  My question: what happens, if all the "high performance I/O" happens on LUN 1 and LUN 2 has only NL-SAS related I/O? Will the distribution percentage of the Extreme Performance tier on LUN 1 increase and on LUN 2 decrease dynamicly?  Kind regards, Dennis
Two LUNs on one Storage Pool