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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So that means illumos can handle 512n and 4kn automatically and properly?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Fred<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Matej Žerovnik [mailto:matej@zunaj.si] <br><b>Sent:</b> </span><span lang=ZH-CN style='font-size:10.0pt;font-family:宋体'>星期一</span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>, </span><span lang=ZH-CN style='font-size:10.0pt;font-family:宋体'>三月</span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> 21, 2016 14:20<br><b>To:</b> Fred Liu<br><b>Cc:</b> geoffn@gnaa.net; omnios-discuss; zfs-discuss@list.zfsonlinux.org<br><b>Subject:</b> Re: [OmniOS-discuss] 4kn or 512e with ashift=12<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>You can’t do that, but you can force system to recognize hard drive as if it was 4Kn. Just like we do it for SSDs: <a href="http://wiki.illumos.org/display/illumos/List+of+sd-config-list+entries+for+Advanced-Format+drives">http://wiki.illumos.org/display/illumos/List+of+sd-config-list+entries+for+Advanced-Format+drives</a><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>lp, Matej<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>On 21 Mar 2016, at 06:00, Fred Liu <<a href="mailto:Fred_Liu@issi.com">Fred_Liu@issi.com</a>> wrote:<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So, you can “zpool create –o ashift=12” in illumos? I can’t do that in smartos at least….</span><o:p></o:p></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p></div><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Geoff Nordli [<a href="mailto:geoff.nordli@gmail.com"><span style='color:purple'>mailto:geoff.nordli@gmail.com</span></a>]<span class=apple-converted-space> </span><b>On Behalf Of<span class=apple-converted-space> </span></b>Geoff Nordli<br><b>Sent:</b><span class=apple-converted-space> </span></span><span lang=ZH-CN style='font-size:10.0pt;font-family:宋体'>星期一</span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>,<span class=apple-converted-space> </span></span><span lang=ZH-CN style='font-size:10.0pt;font-family:宋体'>三月</span><span class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>21, 2016 10:59<br><b>To:</b><span class=apple-converted-space> </span>Fred Liu; omnios-discuss<br><b>Cc:</b><span class=apple-converted-space> </span><a href="mailto:zfs-discuss@list.zfsonlinux.org"><span style='color:purple'>zfs-discuss@list.zfsonlinux.org</span></a><br><b>Subject:</b><span class=apple-converted-space> </span>Re: [OmniOS-discuss] 4kn or 512e with ashift=12</span><o:p></o:p></p></div></div></div><div><p class=MsoNormal style='background:white'> <o:p></o:p></p></div><div><div><p class=MsoNormal style='background:white'><br><br>Hi Fred.<span class=apple-converted-space> </span><br><br>Definitely, the ashift parameter has been around on the illumos for a couple of years. <span class=apple-converted-space> </span><br><br>thanks,<br><br>Geoff<span class=apple-converted-space> </span><br><br>On 16-03-20 05:21 PM, Fred Liu wrote:<o:p></o:p></p></div></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='background:white'>The ashift parameter doesn't apply in illumos if my memory serves me well. It was introduced by ZoL.<o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'> <o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'>Thanks.<o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'> <o:p></o:p></p></div></div><div><div><p class=MsoNormal style='background:white'>Fred<o:p></o:p></p></div></div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'> <o:p></o:p></p><div><div><p class=MsoNormal style='background:white'> <o:p></o:p></p></div></div><div><p class=MsoNormal style='background:white'> <o:p></o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><br><br><br><o:p></o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'>On Sun, Mar 20, 2016 at 1:37 PM -0700, "Geoff Nordli" <<a href="mailto:geoffn@gnaa.net" target="_blank"><span style='color:purple'>geoffn@gnaa.net</span></a>> wrote:<o:p></o:p></p></div><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt'>Quick, question.<br><br>Any performance differences between 4Kn and 512e with ashift=12?<br><br>I am thinking there should not be, since they will both write the full<span class=apple-converted-space> </span><br>4K block size.<br><br>The workload will be virtual machines using a zvol.<br><br>thanks,<br><br>Geoff<br>_______________________________________________<br>OmniOS-discuss mailing list<br><a href="mailto:OmniOS-discuss@lists.omniti.com"><span style='color:purple'>OmniOS-discuss@lists.omniti.com</span></a><br><a href="http://lists.omniti.com/mailman/listinfo/omnios-discuss"><span style='color:purple'>http://lists.omniti.com/mailman/listinfo/omnios-discuss</span></a></span><o:p></o:p></p></div></div></blockquote><div><p class=MsoNormal style='background:white'> <o:p></o:p></p></div></div><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";background:white'>_______________________________________________</span><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif"'><br><span style='background:white'>OmniOS-discuss mailing list</span><br></span><a href="mailto:OmniOS-discuss@lists.omniti.com"><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";color:purple;background:white'>OmniOS-discuss@lists.omniti.com</span></a><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif"'><br></span><a href="http://lists.omniti.com/mailman/listinfo/omnios-discuss"><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";color:purple;background:white'>http://lists.omniti.com/mailman/listinfo/omnios-discuss</span></a><o:p></o:p></p></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div></body></html>`