https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453066#M38972 maybe this could help you:<BR /><BR /><A href="http://h30144.www3.hp.com/SWDSizerWeb/default.htm" target="_blank">http://h30144.www3.hp.com/SWDSizerWeb/default.htm</A> Sun, 05 Jul 2009 08:53:22 GMT IBaltay 2009-07-05T08:53:22Z https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453063#M38969 What is IOPS in Storage system. Sun, 05 Jul 2009 08:19:38 GMT https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453063#M38969 Edward143 2009-07-05T08:19:38Z https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453064#M38970 Hi,<BR />IOPS (Input/Output Operations Per Second)of the storage back-end (logical disks) and controller cache Sun, 05 Jul 2009 08:40:00 GMT https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453064#M38970 IBaltay 2009-07-05T08:40:00Z https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453065#M38971 Do you have any docs to read about IOPS from the basic and how to calculate IOPS for storage ?<BR /><BR />I am new to SAN Sun, 05 Jul 2009 08:41:49 GMT https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453065#M38971 Edward143 2009-07-05T08:41:49Z https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453066#M38972 maybe this could help you:<BR /><BR /><A href="http://h30144.www3.hp.com/SWDSizerWeb/default.htm" target="_blank">http://h30144.www3.hp.com/SWDSizerWeb/default.htm</A> Sun, 05 Jul 2009 08:53:22 GMT https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453066#M38972 IBaltay 2009-07-05T08:53:22Z https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453067#M38973 see this thread:<BR /><A href="http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1353024" target="_blank">http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1353024</A><BR /><BR />many things affect the IOPS (for example: Drive Type, ratio between read and write IO, VRAID Level, etc.)<BR /><BR />You'll find the IOPS per Drive Type written down here:<BR /><A href="http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&amp;cc=us&amp;taskId=120&amp;prodSeriesId=315127&amp;prodTypeId=12169&amp;objectID=c01671044" target="_blank">http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&amp;cc=us&amp;taskId=120&amp;prodSeriesId=315127&amp;prodTypeId=12169&amp;objectID=c01671044</A> <BR /><BR /> Tue, 07 Jul 2009 15:34:27 GMT https://community.hpe.com/t5/hpe-eva-storage/define-iops/m-p/4453067#M38973 PB75 2009-07-07T15:34:27Z