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[OT] Storage speed question

Posted By:      Posted Date: September 29, 2010    Points: 0   Category :Sql Server

Hello All,


Edit: This question is not related to SQL Server but perhaps to storage... but please let me ask it.


I am thinking of using a server which has 12 15K RPM drives.


By doing some googling, I have done the following arithmetic


One 15K RPM drive gives me on an average 200 IOPS


So 12 such disks should give me 2400 IOPS.


In my testing when I look at the sum of SQL reads / sec and writes / sec this value is pretty less than 2400. So I should be good with my new server.


My question is that will I really get 2400 IOPS or things like SATA controller should also be considered in determining IOPS of a server  .... if so.... how?




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