<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear list,<div class=""><br class=""></div><div class="">Sorry it’s a long message and my english may not be the best :(</div><div class=""><br class=""></div><div class="">I have a cluster with two hosts and DRBD replication, I don’t want to use HA I only want to achieve more resiliency in case a host fail and avoid downtime for the VMs when there is a kernel update and I need to reboot one of the PVE so 2 hosts should not be a problem.</div><div class=""><br class=""></div><div class="">I don’t have powerful machines nor hardware raid, I have 2x2To disks witch I use with a soft raid 1 partition for the system and the second partition is dedicated to drbd ressources.</div><div class=""><br class=""></div><div class="">I’m on the very last version of Proxmox4 with community subscription and my servers are up to date, I have a link between the servers witch truly provide 1Gb of bandwidth (tested with iperf) and a latency of less than 2ms.</div><div class=""><br class=""></div><div class="">I use the version 9 of DRBD since it’s the one installed with PVE4 by default but I’m a little bit worried since Proxmox drbd9 documentation says this is a technology preview and even Linbit say DRBD 9.0.x is not production ready… so I use it the old fashion way for configuration, like the following link advises, 2 ressources to avoid complicated split brain recovery : <a href="https://pve.proxmox.com/wiki/DRBD" class="">https://pve.proxmox.com/wiki/DRBD</a></div><div class=""><br class=""></div><div class="">I hope that by doing this way I avoid the « not production » thing, since I believe that it is the drbdmanage tool that is not production ready and not DRBD itself but maybe I’m wrong…? </div><div class="">Is there people that are using drbd9 for production ? successfully ? please share your experience.</div><div class=""><br class=""></div><div class="">My problem, it is almost reproductible everytime (9 times /10) : <b class="">when I try to clone a VM from one ressource to the other or when I try to move the disk of a VM from a ressource to the other, it finish by a server crash even without running a single VM on the cluster !</b></div><div class=""><br class=""></div><div class="">I understand it’s a resource intensive operation but it should be slow at worst but my servers should not crash...</div><div class=""><br class=""></div><div class=""><u class="">What happens :</u> I launch the operation, it usually happen with « bigs » disks (100Go for exemple, with 5Go it usually complete), at the beginning it seems to work, I monitor the operation with several open ssh consoles with iotop, iftop, iostat, top… on both the servers.</div><div class=""><br class=""></div><div class="">After a wile, sometimes 10%, sometimes 20% of the operation, the progression window stop moving, the target server become red in the web interface, I can see that the server where I launched the operation (source server) stop making read io, there is almost no more bandwidth used in DRBD network link and the server that was « receiving » the datas (the target server) start to become unresponsive, there is no more io on both servers, and one of the servers, usually the target server start to have a big big load, at first its only 3,4,5… but the more I wait, the more the load grows (at the end it can be up to 30 or 35 !!!)</div><div class=""><br class=""></div><div class="">There is a process witch is eating cpu it is drdb even if it’s no more doing anything (and I don’t know how to stop it, the kill and kill -9 don’t work, "service drdb stop" either… </div><div class="">there is plenty of free memory, there is almost no more IO and the CPU is used but not so much as you can see : <a href="https://cloud.ipgenius.fr/index.php/s/UWGbnePdxkiee5A" class="">https://cloud.ipgenius.fr/index.php/s/UWGbnePdxkiee5A</a></div><div class=""><br class=""></div><div class="">At the end, I can see theses errors in my ssh consoles :</div><div class=""><br class=""></div><div class=""><div class="">Message from syslogd@virt1 at Apr 1 11:24:09 ...</div><div class=""> kernel:[79286.931625] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kvm:9177]</div><div class=""><br class=""></div><div class="">Message from syslogd@virt1 at Apr 1 11:24:37 ...</div><div class=""> kernel:[79314.904263] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kvm:9177]</div><div class=""><br class=""></div></div><div class="">and i can’t do nothing more, can’t even connect to ssh or launch any command in the consoles opened, the only way for getting my server back is to do a hard reboot :(</div><div class=""><br class=""></div><div class="">After that, the ressources quickly resync, and I end up with a LVM disk created but of course unusable… so I delete it...</div><div class=""><br class=""></div><div class="">I give you my drbd config files witch are as basic as possible :</div><div class=""><br class=""></div><div class=""><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #c33720" class="">root</span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">@</span><span style="font-variant-ligatures: no-common-ligatures; color: #34bbc7" class="">virt1 </span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">~ </span><span style="font-variant-ligatures: no-common-ligatures; color: #d53bd3" class=""># </span><span style="font-variant-ligatures: no-common-ligatures" class="">cat /etc/drbd.d/global_common.conf</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">global {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> usage-count no;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">}</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""></span><br class=""></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">common {</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span></span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>startup {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> wfc-timeout 0; </span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>handlers {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>split-brain "/usr/lib/drbd/notify-split-brain.sh root";</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>out-of-sync "/usr/lib/drbd/notify-out-of-sync.sh root";</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>}</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span> <span class="Apple-tab-span" style="white-space:pre"> </span> <span class="Apple-tab-span" style="white-space:pre"> </span></span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>options {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> cpu-mask 0;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span> <span class="Apple-tab-span" style="white-space:pre"> </span></span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>net {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>protocol C;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>allow-two-primaries;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>cram-hmac-alg sha1;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span>sndbuf-size 0; max-buffers 8000; max-epoch-size 8000; verify-alg sha1;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> disk {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>resync-rate 40M;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>on-io-error detach;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>}</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> <span class="Apple-tab-span" style="white-space:pre"> </span></span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">}</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #c33720" class="">root</span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">@</span><span style="font-variant-ligatures: no-common-ligatures; color: #34bbc7" class="">virt1 </span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">~ </span><span style="font-variant-ligatures: no-common-ligatures; color: #d53bd3" class=""># </span><span style="font-variant-ligatures: no-common-ligatures" class="">cat /etc/drbd.d/r1.res</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">resource r1 {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>device /dev/drbd1;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>disk /dev/sda3;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>meta-disk internal;</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span></span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> net {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> shared-secret "xxxxxxxxxx";</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> on virt1 { </span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> address 10.200.10.1:7788; </span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> on virt2 {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> address 10.200.10.2:7788;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">}</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #c33720" class="">root</span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">@</span><span style="font-variant-ligatures: no-common-ligatures; color: #34bbc7" class="">virt1 </span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">~ </span><span style="font-variant-ligatures: no-common-ligatures; color: #d53bd3" class=""># </span><span style="font-variant-ligatures: no-common-ligatures" class="">cat /etc/drbd.d/r2.res</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">resource r2 {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>device /dev/drbd2;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>disk /dev/sdb3;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>meta-disk internal;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""></span><br class=""></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> net {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> shared-secret "xxxxxxxxxx"; </span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> on virt1 {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> address 10.200.10.1:7789;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><p style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0); min-height: 14px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> </span><br class="webkit-block-placeholder"></p><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> on virt2 {</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> address 10.200.10.2:7789;</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(41, 249, 20); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> }</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(52, 187, 199); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #29f914" class="">}</span></div><div style="margin: 0px; line-height: normal; font-family: 'Andale Mono'; color: rgb(52, 187, 199); background-color: rgb(0, 0, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #c33720" class="">root</span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">@</span><span style="font-variant-ligatures: no-common-ligatures" class="">virt1 </span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class="">~ </span><span style="font-variant-ligatures: no-common-ligatures; color: #d53bd3" class=""># </span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures; color: #d53bd3" class=""><br class=""></span></div></div><div class="">I’m not sure about the values for the line with the buffers directives but all the rest is very standard.</div><div class=""><br class=""></div><div class="">For information, unless for this specific operation (copy from a ressource to the other) the cluster is working correctly : I have made 3 or 4 linux and 3 windows VMs on each hosts and launched very stressful tests (all ressources, cpu, ram and disk read/write) in every VMs during more than 24 hours and of course the cluster was a bit loaded, the network links sometimes showed as congested and the VMs was not very fast but it worked very well and it have been stable !</div><div class=""><br class=""></div><div class="">What I need above everything is stability, performances are far away in my priority list because I would like to go on prod with this cluster so really need it to be stable...</div><div class=""><br class=""></div><div class="">Can someone help me ? maybe do you need more config files or any kind of information, I can provide anything you ask. Is there a way for limiting the ressources allocated to drbd ?</div><div class=""><br class=""></div><div class="">Moreover, If there is<u class=""> a real specialist of drbd technology</u>, my company is not rich and can’t afford to pay a lot for it but it is something that can be discussed. </div><div class=""><br class=""></div><div class="">Anyway, thank you in advance if you have taken the time to read my message and thank you again more if you can provide an answer !<br class=""><div class=""><br class="webkit-block-placeholder"></div><div class=""><u class="">One last thing, not in direct relation with the subject :</u></div><div class="">There is no /proc/drbd anymore and I’m a little bit lost without it because I was used to it. </div><div class="">Of course, I know there is others commands (drbdadm status, drbd-overview, drbdsetup events2…) but the nagios plugin I was using to monitor drbd will not work since it is using /proc/drbd output and I didn’t found a newer nagios plugin adapted to this new version, if someone has it could you please provide it ?</div><div class=""><br class=""></div><div class=""><b class="">if nobody answer to this, I will write one myself, so if someone is interested for it, let me know.</b></div><div class=""><br class=""></div><div class="">Best regards,</div><div class=""><br class=""></div><div class="">
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<strong style="color: #403120;" class="">Jean-Laurent Ivars </strong><br class="">
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