https://community.netapp.com/t5/ONTAP-Discussions/FlashPool-Performance-contribute/m-p/121987#M26140 <P>Hi all,</P><P>&nbsp;</P><P>it there a way, an approximate one of course, that let us estimate the contribute of SSD on a FlashPool aggregate?</P><P>Everywhere I read data that seems to be almost marketing one or the SPM contribute that could be not so easy to read in the real world.</P><P>Very ofter we have to answer to customer requisite (public trial maybe) asking i.e. 600 IOPS for raw TB or 10 MB/s in sequential workloads...</P><P>&nbsp;</P><P>Are there answers to simple questions like these? (just examples)</P><P>&nbsp;</P><P>A 120 SAS hdd aggregate how much, nominal values of course, how much can increase in IOPS for a 70/30% r/w random workload if cached with a FlashPool?</P><P>How much flash do you suggest, minimum value, as ratio of SAS/NL-SAS hdds? 10%, 20%...less? More?</P><P>&nbsp;</P><P>Thank you in advance</P> Wed, 04 Jun 2025 19:41:04 GMT gmilazzoitag 2025-06-04T19:41:04Z https://community.netapp.com/t5/ONTAP-Discussions/FlashPool-Performance-contribute/m-p/121987#M26140 <P>Hi all,</P><P>&nbsp;</P><P>it there a way, an approximate one of course, that let us estimate the contribute of SSD on a FlashPool aggregate?</P><P>Everywhere I read data that seems to be almost marketing one or the SPM contribute that could be not so easy to read in the real world.</P><P>Very ofter we have to answer to customer requisite (public trial maybe) asking i.e. 600 IOPS for raw TB or 10 MB/s in sequential workloads...</P><P>&nbsp;</P><P>Are there answers to simple questions like these? (just examples)</P><P>&nbsp;</P><P>A 120 SAS hdd aggregate how much, nominal values of course, how much can increase in IOPS for a 70/30% r/w random workload if cached with a FlashPool?</P><P>How much flash do you suggest, minimum value, as ratio of SAS/NL-SAS hdds? 10%, 20%...less? More?</P><P>&nbsp;</P><P>Thank you in advance</P> Wed, 04 Jun 2025 19:41:04 GMT https://community.netapp.com/t5/ONTAP-Discussions/FlashPool-Performance-contribute/m-p/121987#M26140 gmilazzoitag 2025-06-04T19:41:04Z https://community.netapp.com/t5/ONTAP-Discussions/FlashPool-Performance-contribute/m-p/121998#M26142 <P>Hi&nbsp;<a href="https://community.netapp.com/t5/user/viewprofilepage/user-id/11934">@gmilazzoitag</a>,</P><P>&nbsp;</P><P>I think you're looking for <A href="http://www.netapp.com/us/media/tr-4070.pdf" target="_self">TR-4070</A>, and in particular the section on the Automated Workload Analyzer (AWA).</P><P>&nbsp;</P><P>Hope that helps!</P><P>&nbsp;</P><P>Andrew</P> Wed, 03 Aug 2016 18:30:43 GMT https://community.netapp.com/t5/ONTAP-Discussions/FlashPool-Performance-contribute/m-p/121998#M26142 asulliva 2016-08-03T18:30:43Z