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<div>zilstat showed all zeros. </div>
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<div id="AppleMailSignature">In fact I emailed Richard Elling about it to be sure that I was using it properly.</div>
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<div id="AppleMailSignature">iostat, prstat, & arcstat stayed very busy the whole time though.</div>
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<div id="AppleMailSignature">Ill pay more attention nexttime.<br>
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<span style="font-size: 13pt;">John Barfield</span></div>
<div><br>
On Mar 29, 2017, at 1:22 AM, Knut Erik Sørvik <<a href="mailto:kes@teknograd.no">kes@teknograd.no</a>> wrote:<br>
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<div>Hi</div>
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<div>I've had similar things happen, and in our case I think this might be related:</div>
<div><br>
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<div><a href="https://github.com/openzfs/openzfs/pull/214">https://github.com/openzfs/openzfs/pull/214</a></div>
<div><br>
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<div>A simple zpool iostat on the pool, with a frequent update, showed that the write column were all zeroes for an extended time, causing the clients to believe the storage was gone.</div>
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<div>kes
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<div><br>
Den 28. mar. 2017 kl. 23.54 skrev John Barfield <<a href="mailto:john.barfield@bissinc.com">john.barfield@bissinc.com</a>>:<br>
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<p class="MsoNormal" style="text-indent:.5in"><span style="font-size:11.0pt">Greetings!<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:.5in"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:.5in"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:.5in"><span style="font-size:11.0pt">I have an issue with ZFS/NFS on OmniOS where copying or deleting large files causes the SAN to lockup and requires that we reboot it sometimes to recover. One customer was trying to
copy a 400GB file and another tried to delete a 4TB vmdk from a vmware NFS vstore. In both situations the issue is reproducible and in both situations I cannot seem to find anything crazy happening on either of the boxes. This doesn’t mean anything though
because I’m limited in my kstat/dtrace knowledge for troubleshooting this type of behavior on illumos.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If there is an illumOS bug I’m missing or something that jumps out at ya please let me know…of if you need more detailed information I can detail both customer locations hardware, software, and operating conditions
upon request. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The VMware customer is running on r151016 and the other customer is running on the latest release.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt">NFSv3 Only Clients<o:p></o:p></span></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">OS:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">ESXi 5.5<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt">All 64bit Linux Clients<o:p></o:p></span></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt">CentOS 5,6,&7<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Some Older Debian 7 Boxes<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I should also note that the VMware customer experiences this same issue on two different SAN’s that are very different in hardware configurations.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The one common thread is that they are all Sun Servers. X4170 M2, X4270 M2, x4540<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">This thread is being posted to both the illumos email list and the omnios email list as well.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’m looking, I guess, for a methodology to follow to trace this down and determine if it’s a bug or a misconfiguration either on the client or in ZFS or in the NFS server.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I can get someone access if so desired.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Have a great day!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Times New Roman"">John Barfield<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Times New Roman"">Engineering and Stuff
<o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Times New Roman";color:#767171">M: +1 (214) 425-0783 O: +1 (214) 506-8354 <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman""><a href="mailto:john.barfield@bissinc.com"><span style="color:#0563C1">john.barfield@bissinc.com</span></a><o:p></o:p></span></p>
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