<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Jun 14, 2013, at 12:08 AM, Hafiz Rafibeyli <<a href="mailto:rafibeyli@gmail.com">rafibeyli@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hello ,i'm running omnios(d3950d8) as a NAS base with napp-it,<br><br>hardware is Supermicro SC846E26-R1200B+LSI SAS 9211-8i HBA(IT mode enabled with last firmware)<br><br>everything working great,but i'm getting errors with my Intel SLC SSD 32GB(zil log).<br><br>SLC SSD connected to system backplane via supermicro 2,5 to 3,5 converter.<br><br>I read somewhere Intel's SLC SSD not supported when connected via SAS expander,anyway to solve this problem?<br></blockquote><div><br></div><div>It is not an SLC SSD issue. More likely, it is a SATA issue. Since we don't know the </div><div>model of SSD, it can be hard to say for sure.</div><br><blockquote type="cite"><br>messages from /var/adm/messages<br></blockquote><div><br></div><div>These are the result of the disk being reset. The timeout happens, the disk is reset and</div><div>any in-flight operations are aborted (can decode this from the ioc_status). Ultimately,</div><div>you will need to replace the SSD, though it may be possible to upgrade the SSD firmware</div><div>as some older Intel SATA SSDs had some firmware fixes available.</div><div><br></div><blockquote type="cite"><br>Jun 14 10:03:45 canomnios scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,340e@7/pci1000,3020@0 (mpt_sas0):<br>Jun 14 10:03:45 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>Disconnected command timeout for Target 16<br></blockquote><div><br></div><div>command timed out, reset sent...</div><br><blockquote type="cite">Jun 14 10:03:45 canomnios scsi: [ID 365881 kern.info] /pci@0,0/pci8086,340e@7/pci1000,3020@0 (mpt_sas0):<br>Jun 14 10:03:45 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>Log info 0x31140000 received for target 16.<br>Jun 14 10:03:45 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>scsi_status=0x0, ioc_status=0x8048, scsi_state=0xc<br>Jun 14 10:03:45 canomnios scsi: [ID 365881 kern.info] /pci@0,0/pci8086,340e@7/pci1000,3020@0 (mpt_sas0):<br>Jun 14 10:03:45 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>Log info 0x31140000 received for target 16.<br>Jun 14 10:03:45 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>scsi_status=0x0, ioc_status=0x8048, scsi_state=0xc<br></blockquote><div><br></div><div>... two I/Os were aborted by the disk.</div><br><blockquote type="cite">Jun 14 10:06:15 canomnios scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,340e@7/pci1000,3020@0 (mpt_sas0):<br>Jun 14 10:06:15 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>Disconnected command timeout for Target 16</blockquote><div><br></div>rinse, repeat<br><br><blockquote type="cite">Jun 14 10:06:15 canomnios scsi: [ID 365881 kern.info] /pci@0,0/pci8086,340e@7/pci1000,3020@0 (mpt_sas0):<br>Jun 14 10:06:15 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>Log info 0x31140000 received for target 16.<br>Jun 14 10:06:15 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>scsi_status=0x0, ioc_status=0x8048, scsi_state=0xc<br>Jun 14 10:06:15 canomnios scsi: [ID 365881 kern.info] /pci@0,0/pci8086,340e@7/pci1000,3020@0 (mpt_sas0):<br>Jun 14 10:06:15 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>Log info 0x31140000 received for target 16.<br>Jun 14 10:06:15 canomnios <span class="Apple-tab-span" style="white-space:pre"> </span>scsi_status=0x0, ioc_status=0x8048, scsi_state=0xc<br></blockquote><div><br></div><div>The reason people suggest using a SATA/SAS interposer instead of STP for these cases</div><div>is because we have experienced cases where the reset/recovery can take out everything</div><div>on the expander. There is a lot of proprietary firmware in the mix: HBAs, expanders, and </div><div>disks. Mixing native SAS with STP just adds to the complexity and unintended consequences</div><div>can result. By using a SATA/SAS interposer, you can eliminate STP from the mix and keep</div><div>the protocol translation confined to one SAS target.</div><div> -- richard</div><div><br></div></div><div apple-content-edited="true"> <div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">--</div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br></div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><a href="mailto:Richard.Elling@RichardElling.com">Richard.Elling@RichardElling.com</a><br>+1-760-896-4422<br><br><br></div></span></div></span></div></span></div></span></div> </div> <br></body></html>