`<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-AU" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal">Hi List,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I want to report very strange SSD behaviour on a new pool I setup.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The hardware is a HP DL180 G6 Server with the LSI 9207-8i Card<o:p></o:p></p>
<p class="MsoNormal">And 8x 1TB Samsung SSD Pro drives. Running omnios-10b9c79<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All the drives are brand spanking new setup in a raidz2 array.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Within 2 months the below has happened and there has been very<o:p></o:p></p>
<p class="MsoNormal">Little use on this array. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> pool: SSD-TANK<o:p></o:p></p>
<p class="MsoNormal">state: DEGRADED<o:p></o:p></p>
<p class="MsoNormal">status: One or more devices are faulted in response to persistent errors.<o:p></o:p></p>
<p class="MsoNormal"> Sufficient replicas exist for the pool to continue functioning in a<o:p></o:p></p>
<p class="MsoNormal"> degraded state.<o:p></o:p></p>
<p class="MsoNormal">action: Replace the faulted device, or use 'zpool clear' to mark the device<o:p></o:p></p>
<p class="MsoNormal"> repaired.<o:p></o:p></p>
<p class="MsoNormal"> scan: scrub repaired 23K in 1h12m with 0 errors on Mon Jul 25 20:13:04 2016<o:p></o:p></p>
<p class="MsoNormal">config:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> NAME STATE READ WRITE CKSUM<o:p></o:p></p>
<p class="MsoNormal"> SSD-TANK DEGRADED 1 67 35<o:p></o:p></p>
<p class="MsoNormal"> raidz2-0 DEGRADED 4 72 113<o:p></o:p></p>
<p class="MsoNormal"> c5t500253884014D0D3d0 ONLINE 0 0 2<o:p></o:p></p>
<p class="MsoNormal"> c5t50025388401F767Ad0 DEGRADED 0 0 19 too many errors<o:p></o:p></p>
<p class="MsoNormal"> c5t50025388401F767Bd0 FAULTED 0 0 0 too many errors<o:p></o:p></p>
<p class="MsoNormal"> c5t50025388401F767Dd0 ONLINE 0 0 0<o:p></o:p></p>
<p class="MsoNormal"> c5t50025388401F767Fd0 ONLINE 0 0 1<o:p></o:p></p>
<p class="MsoNormal"> c5t50025388401F7679d0 ONLINE 0 0 2<o:p></o:p></p>
<p class="MsoNormal"> c5t50025388401F7680d0 REMOVED 0 0 0<o:p></o:p></p>
<p class="MsoNormal"> c5t50025388401F7682d0 ONLINE 0 0 1<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can anyone suggest why I would have this problem where I am seeing CKSUM errors<o:p></o:p></p>
<p class="MsoNormal">On most disks and while only one has faulted others have been degraded or removed.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Shaun<o:p></o:p></p>
</div>
</body>
</html>
`