`<div><div style="font-family: "lucida Grande", Verdana;">Hello,</div><div style="font-family: "lucida Grande", Verdana;"><br></div><div style="font-family: "lucida Grande", Verdana;">I noticed that the r<span t="7" data="151022" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1; position: static;">151022</span> starts to support the Dell H330 via mpt_sas driver. So I installed the r<span t="7" data="151022" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1;">151022</span> fresh on my Dell T630 server with H330 as a VM on ESXi. The H330 was PCI-E passthrough with 8x 7k2 disks in raid z2.</div><div style="font-family: "lucida Grande", Verdana;"><br></div><div style="font-family: "lucida Grande", Verdana;">However when I ran the command dmesg | grep sas, it seems that the mr_sas was used for the H330 adapter which is just as same as the r<span t="7" data="151020" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1;">151020</span> and r<span t="7" data="151014" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1;">151014</span> version.</div><div style="font-family: "lucida Grande", Verdana;"><br></div><div style="font-family: "lucida Grande", Verdana;">I also discovered that the disk performance was worse than the r<span t="7" data="151020" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1;">151020</span>. To compare, I ran all the tests via napp-it filebench. For example, for the fivestreamwrite test, the result of r<span t="7" data="151020" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1;">151020</span> and r<span t="7" data="151014" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1;">151014</span> is around 1100mb/s, but the r<span t="7" data="151022" style="border-bottom: 1px dashed rgb(204, 204, 204); z-index: 1;">151022</span> only shows 650mb/s. I tried multiple combinations like creating the pool in one version and import into another version. The issue seems not related to the creation of the pool but the version which runs the pool.</div><div style="font-family: "lucida Grande", Verdana;"><br></div><div style="font-family: "lucida Grande", Verdana;">Did I miss something in the setup that leads the H330 to run with the wrong driver? Could you please give me some advices? Thank you in advance.</div><div style="font-family: "lucida Grande", Verdana;"><br></div><div style="font-family: "lucida Grande", Verdana;">Best regards,</div><div style="font-family: "lucida Grande", Verdana;">Aries</div></div>`