<div dir="ltr"><p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif;background-image:initial;background-repeat:initial">Hey,.. well I know many
shortcuts ;-P SLES, RHEL aka EL,etc... so XENserver "must" be fine
too.</span><span style="font-size:12pt;font-family:'Times New Roman',serif"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">My goal is to have:</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">a Server for KVM hosting... Mail server (Open
change + Cyrus + postfix,...) Fileserver, AD DC using Samba 4, </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">and some more services...</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">If you Ask yourself why I try to do this using an
Atom 2750 8 Core ad 16 GB on Standard Sata disks I can answer it easily. I have
to serve this services for 5 User and I do not have to care about High IO loads
etc, to separate sequential from random IO to push the performance higher.</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">My second Problem is that this server have their
place in very small room without any possibility of cooling. So Atom with 20W
TDP each must do this. </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">another reason is the physical size,.. </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">If I would try to put one of my HP DL 380 I have at
home, I would not be able to close the door..</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">So better don't ask why I choose this components.
It even took me 2 hours to disassemble and assemble the rack again in fact </span><span style="font-family:Arial,sans-serif;background-image:initial;background-repeat:initial">the door frame was 3mm smaller :-P</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:Arial,sans-serif;background-image:initial;background-repeat:initial"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:12pt;font-family:Arial,sans-serif">BUT I must see the good things: SCSI Cluster no
longer exists…. My first and my worst shared storage.</span></p><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-02-09 17:42 GMT+01:00 Digimer <span dir="ltr"><<a href="mailto:lists@alteeve.ca" target="_blank">lists@alteeve.ca</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Sorry, "EL" is a short way of saying "RHEL, CentOS or other RHEL-based<br>
distroes". CentOS 6 is fine.<br>
<br>
Please don't let yourself get too frustrated. HA clustering is not hard,<br>
but it is complex. It takes time to get it all working right.<br>
<br>
What is your primary goal? To run an HA cluster for hosting VMs?<br>
<br>
digimer<br>
<span class=""><br>
On 09/02/15 11:32 AM, Patrick Prilisauer wrote:<br>
> Hey, I don't own EL but CentOS6 must do it also?.<br>
><br>
> I know sitting for at least two weeks on setting up the Server. I'm<br>
> getting really frustrated.<br>
><br>
> I've bought the combination of Supermicro and Adaptec to do not have to<br>
> handle mdraid + uefi + workaround...<br>
><br>
> I will try to do the very last setup on EL6.. supermicro was my worst<br>
> decision...<br>
><br>
> I'll be back ;-)<br>
><br>
> 2015-02-09 17:10 GMT+01:00 Digimer <<a href="mailto:lists@alteeve.ca">lists@alteeve.ca</a><br>
</span>> <mailto:<a href="mailto:lists@alteeve.ca">lists@alteeve.ca</a>>>:<br>
<div><div class="h5">><br>
> Hello,<br>
><br>
> Trying to adapt <a href="https://alteeve.ca/w/AN!Cluster_Tutorial_2" target="_blank">https://alteeve.ca/w/AN!Cluster_Tutorial_2</a> to EL7 +<br>
> pacemaker will be no easy task at all. The concepts can port, but after<br>
> that, you're pretty much on your own.<br>
><br>
> Out of curiosity, can you try pacemaker 1.1.12 on cman+corosync on<br>
> EL6? I've avoided EL7 so far because it's still very very new, and a<br>
> major departure from previous releases, so I am not convinced it's ideal<br>
> for HA yet.<br>
><br>
> If you find that the RAID stuff works better on EL6, then it might be<br>
> a sign of driver issues or something. Truth be told though, my early<br>
> experiments with RAID and Supermicro didn't end well, so this might well<br>
> be not OS related, too. Any firmware updates available?<br>
><br>
> On 09/02/15 11:02 AM, Patrick Prilisauer wrote:<br>
> > Hey there,<br>
> ><br>
> > Ih have found out one issue, the Problem was or better still is a<br>
> > defunced mainboard.<br>
> > I'm running an Adaptec 6504e on a Supermicro A1ASI-2750 the Mainboard<br>
> > occures some strange timeouts, which hasn't been reported by the aacraid<br>
> > driver because they were to short.<br>
> > But suddenly after a few days the timeouts getting larger.. and some<br>
> > other strange things happened linke the uefi bios doesn't detect the<br>
> > card etc.<br>
> ><br>
> > Anyway, I'm still fighting with the pacemakersetup, I do not understand<br>
> > the drbd documentation, the configs shown on one chapter doesn't match<br>
> > the resources in another chapter...<br>
> ><br>
> > Still if somebody knows where I could find a complete configuration made<br>
> > with the pcs programm for pacemaker. I would be so happy.<br>
> ><br>
> > BR<br>
> ><br>
> > 2015-02-04 10:07 GMT+01:00 Patrick Prilisauer <<a href="mailto:prilisauer@googlemail.com">prilisauer@googlemail.com</a> <mailto:<a href="mailto:prilisauer@googlemail.com">prilisauer@googlemail.com</a>><br>
</div></div>> > <mailto:<a href="mailto:prilisauer@googlemail.com">prilisauer@googlemail.com</a><br>
<div><div class="h5">> <mailto:<a href="mailto:prilisauer@googlemail.com">prilisauer@googlemail.com</a>>>>:<br>
> ><br>
> > Hello to all,<br>
> ><br>
> > I have now completely reinstalled my servers<br>
> > according <a href="https://alteeve.ca/w/AN!Cluster_Tutorial_2" target="_blank">https://alteeve.ca/w/AN!Cluster_Tutorial_2</a> on Centos 7<br>
> > modified by some OS differences.<br>
> > Anyway, it seems that I won't understand what I'm doing wrong?<br>
> > As you could see res_drbd_1_stop on.... 'not installed' is<br>
> returned.<br>
> > The last whole day spending on findinding my needle in the<br>
> haystack<br>
> > wont make it better.<br>
> ><br>
> > Any hints?,<br>
> > Thanks<br>
> ><br>
> ><br>
> ><br>
> > OUTPUT1:<br>
> > crm_mon<br>
> > Last updated: Wed Feb 4 09:59:01 2015<br>
> > Last change: Wed Feb 4 05:18:41 2015 via crmd on at01srv01<br>
> > Stack: corosync<br>
> > Current DC: at01srv02 (167772162) - partition with quorum<br>
> > Version: 1.1.10-32.el7_0.1-368c726<br>
> > 2 Nodes configured<br>
> > 4 Resources configured<br>
> ><br>
> ><br>
> > Node at01srv01 (167772161): standby<br>
> > Online: [ at01srv02 ]<br>
> ><br>
> > Master/Slave Set: ms_drbd_1 [res_drbd_1]<br>
> > res_drbd_1 (ocf::linbit:drbd): FAILED at01srv02<br>
> (unmanaged)<br>
> > Stopped: [ at01srv01 ]<br>
> > stonith_fence_pcmk_1 (stonith:fence_pcmk): Started at01srv02<br>
> ><br>
> > Failed actions:<br>
> > res_drbd_1_stop_0 on at01srv02 'not installed' (5): call=120,<br>
> > status=complete, last-rc-change='Wed Feb 4 09:3<br>
> > 5:43 2015', queued=15118ms, exec=0ms<br>
> ><br>
> ><br>
> ><br>
> ><br>
> > OUTPUT2:<br>
> > [root@at01srv02 linbit]# systemctl status drbd.service<br>
> > drbd.service - DRBD -- please disable. Unless you are NOT using a<br>
> > cluster manager.<br>
> > Loaded: loaded (/usr/lib/systemd/system/drbd.service; disabled)<br>
> > Active: failed (Result: exit-code) since Mit 2015-02-04<br>
> 09:57:06<br>
> > CET; 2min 51s ago<br>
> > Process: 8544 ExecStart=/sbin/drbdadm adjust-with-progress all<br>
> > (code=exited, status=1/FAILURE)<br>
> > Process: 8540 ExecStartPre=/sbin/drbdadm sh-nop (code=exited,<br>
> > status=0/SUCCESS)<br>
> > Main PID: 8544 (code=exited, status=1/FAILURE)<br>
> ><br>
> > Feb 04 09:57:06 at01srv02 drbdadm[8544]: [<br>
> > Feb 04 09:57:06 at01srv02 drbdadm[8544]: adjust net:<br>
> > r0:failed(net-options:20)<br>
> > Feb 04 09:57:06 at01srv02 drbdadm[8544]: ]<br>
> > Feb 04 09:57:06 at01srv02 systemd[1]: drbd.service: main process<br>
> > exited, code=exited, status=1/FAILURE<br>
> > Feb 04 09:57:06 at01srv02 systemd[1]: Failed to start DRBD --<br>
> please<br>
> > disable. Unless you are NOT using a c...ger..<br>
> > Feb 04 09:57:06 at01srv02 systemd[1]: Unit drbd.service entered<br>
> > failed state.<br>
> > Hint: Some lines were ellipsized, use -l to show in full.<br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> > 2015-02-02 20:46 GMT+01:00 Digimer <<a href="mailto:lists@alteeve.ca">lists@alteeve.ca</a><br>
> <mailto:<a href="mailto:lists@alteeve.ca">lists@alteeve.ca</a>><br>
</div></div>> > <mailto:<a href="mailto:lists@alteeve.ca">lists@alteeve.ca</a> <mailto:<a href="mailto:lists@alteeve.ca">lists@alteeve.ca</a>>>>:<br>
<div><div class="h5">> ><br>
> > On 02/02/15 02:44 PM, Ivan wrote:<br>
> ><br>
> ><br>
> > I'm not sure that two (or more) LUKS<br>
> partitions are<br>
> > identical given<br>
> > exactly the same cleartext content and the same<br>
> > keys. There must be some<br>
> > kind of sector randomization when writing data to<br>
> > make cryptoanalysis<br>
> > harder, so it makes me think that it's not the<br>
> case<br>
> > (that would require<br>
> > testing though).<br>
> > If I'm right, I don't see how DRBD could work in<br>
> > that setup. (or maybe I<br>
> > just need more sleep).<br>
> ><br>
> ><br>
> > LUKS is working on the LV, which will be backed by the<br>
> > PV on DRBD. DRBD<br>
> > doesn't know data, so it will simply replicate the<br>
> LUKS<br>
> > structure<br>
> > faithfully to both nodes.<br>
> ><br>
> > Remember, for all intent and purpose, there is<br>
> only one<br>
> > device/luks<br>
> > partition. DRBD is really no different from LUKS on<br>
> > /dev/mdX devices in<br>
> > this regard.<br>
> ><br>
> ><br>
> > ah that's right - indeed more sleep needed. I've<br>
> skipped the<br>
> > "clustered<br>
> > LVM" part and was thinking about two luks partitions.<br>
> ><br>
> > sorry for the noise.<br>
> ><br>
> ><br>
> > No worries at all. When you ask a question like this, you<br>
> have a<br>
> > chance to learn a system better, so it's good. :)<br>
> ><br>
> > --<br>
> > Digimer<br>
> > Papers and Projects: <a href="https://alteeve.ca/w/" target="_blank">https://alteeve.ca/w/</a><br>
> > What if the cure for cancer is trapped in the mind of a person<br>
> > without access to education?<br>
> > _________________________________________________<br>
> > drbd-user mailing list<br>
> > <a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a> <mailto:<a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a>><br>
</div></div>> <mailto:<a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a> <mailto:<a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a>>><br>
<span class="im HOEnZb">> > <a href="http://lists.linbit.com/__mailman/listinfo/drbd-user" target="_blank">http://lists.linbit.com/__mailman/listinfo/drbd-user</a><br>
> > <<a href="http://lists.linbit.com/mailman/listinfo/drbd-user" target="_blank">http://lists.linbit.com/mailman/listinfo/drbd-user</a>><br>
> ><br>
> ><br>
> ><br>
><br>
><br>
> --<br>
> Digimer<br>
> Papers and Projects: <a href="https://alteeve.ca/w/" target="_blank">https://alteeve.ca/w/</a><br>
> What if the cure for cancer is trapped in the mind of a person without<br>
> access to education?<br>
><br>
><br>
<br>
<br>
</span><div class="HOEnZb"><div class="h5">--<br>
Digimer<br>
Papers and Projects: <a href="https://alteeve.ca/w/" target="_blank">https://alteeve.ca/w/</a><br>
What if the cure for cancer is trapped in the mind of a person without<br>
access to education?<br>
</div></div></blockquote></div><br></div>