topic Re: Compression efficiency in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/Compression-efficiency/m-p/6928#M1484 <HTML><HEAD></HEAD><BODY><P>df -S&nbsp; (uppercase) will show both compression and asis and combined savings. </P></BODY></HTML> Thu, 10 Feb 2011 01:07:33 GMT scottgelb 2011-02-10T01:07:33Z Compression efficiency https://community.netapp.com/t5/ONTAP-Discussions/Compression-efficiency/m-p/6923#M1483 <HTML><HEAD></HEAD><BODY><P>How do you measure the Ontap compression efficiency on volumes?</P><P>"df -Vhs" returns the ASIS savings, but how do I find out if compression is "worth" being enabled on a certain volume given the amount of CPU usage vs space savings?</P></BODY></HTML> Thu, 05 Jun 2025 07:00:35 GMT https://community.netapp.com/t5/ONTAP-Discussions/Compression-efficiency/m-p/6923#M1483 dejanliuit 2025-06-05T07:00:35Z Re: Compression efficiency https://community.netapp.com/t5/ONTAP-Discussions/Compression-efficiency/m-p/6928#M1484 <HTML><HEAD></HEAD><BODY><P>df -S&nbsp; (uppercase) will show both compression and asis and combined savings. </P></BODY></HTML> Thu, 10 Feb 2011 01:07:33 GMT https://community.netapp.com/t5/ONTAP-Discussions/Compression-efficiency/m-p/6928#M1484 scottgelb 2011-02-10T01:07:33Z Re: Compression efficiency https://community.netapp.com/t5/ONTAP-Discussions/Compression-efficiency/m-p/6933#M1485 <HTML><HEAD></HEAD><BODY><P>Excellent. This is exactly what I was looking for.</P><P></P><P>Just took a random users data (10GB) and tested it in the simultator to see the results.</P><P>Its in no way indicative of the real efficiency of the compression algorithm (whatever algorithm is used in compression)</P><P>The data is a mixture of TIF-images, Endnote-data, PDF-files, medical simulator data&nbsp; etc etc...</P><P></P><P>nsim80&gt; df -Vhs /vol/Test<BR />Filesystem&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; used&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; saved&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; %saved<BR />/vol/Test/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5934MB&nbsp;&nbsp;&nbsp;&nbsp; 3761MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 39%</P><P></P><P>nsim80&gt; df -VhS /vol/Test<BR />Filesystem&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; used&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; total-saved&nbsp;&nbsp;&nbsp; %total-saved&nbsp;&nbsp;&nbsp; deduplicated&nbsp;&nbsp;&nbsp; %deduplicated&nbsp;&nbsp;&nbsp; compressed&nbsp;&nbsp;&nbsp; %compressed<BR />/vol/Test/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5934MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4868MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3761MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 39%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1107MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16%</P><P></P><P></P><P>And another example with other two users data.</P><P>nsim80&gt; df -VhS /vol/Test<BR />Filesystem&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; used&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; total-saved&nbsp;&nbsp;&nbsp; %total-saved&nbsp;&nbsp;&nbsp; deduplicated&nbsp;&nbsp;&nbsp; %deduplicated&nbsp;&nbsp;&nbsp; compressed&nbsp;&nbsp;&nbsp; %compressed<BR />/vol/Test/&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 9838MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3425MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 26%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 288MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3136MB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 24%</P></BODY></HTML> Thu, 10 Feb 2011 14:59:49 GMT https://community.netapp.com/t5/ONTAP-Discussions/Compression-efficiency/m-p/6933#M1485 dejanliuit 2011-02-10T14:59:49Z