<div dir="ltr"><div>I was just thinking - maybe adding a setting to storage domains who's the "master" for that specific storage domain would get around this ? <br><br>e.g. storage_domain_1 => master = HV1, storage_domain_2 => master = HV2, etc. etc. <br>
<br></div><div>What do you think ? <br></div><div><br></div>Alex<br><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On 18 January 2013 09:34, Alex Leonhardt <span dir="ltr"><<a href="mailto:alex.tuxx@gmail.com" target="_blank">alex.tuxx@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"><div dir="ltr"><div class="gmail_extra">Hmmm, but if I put the SPM host into Maint
mode, then all the VMs would either be migrated or (in my case, all set
to manual) not available during that time, correct ? <br>
<br></div>Would changing the SPM priority in
the host config have the desired effect w/o putting the host into Maint
mode ? Or can I only do that when the host is in Maint mode ? </div></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div class="im">On 17 January 2013 20:42, Maor Lipchuk <span dir="ltr"><<a href="mailto:mlipchuk@redhat.com" target="_blank">mlipchuk@redhat.com</a>></span> wrote:<br>
</div><div><div class="h5"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Alex,<br>
See my last respond, I add a comment inline there.<br>
See my comments inline<br>
<br>
Regards,<br>
Maor.<br>
<div><br>
On 01/17/2013 10:04 PM, Alex Leonhardt wrote:<br>
> Hiya,<br>
><br>
> Yes i can choose the storage domain, but I cannot force the host that is<br>
> to be used for creating it. Even with 1Gbit network, creating a 80GB<br>
> disk / 40 GB disk is still significantly longer process than actually<br>
> required when doing a "dd" of /dev/null over the network.<br>
><br>
> Is it possible to manually change who is SPM master, create the<br>
> disks/VMs required, and change it back ?<br>
</div>You can maintain your SPM host, and active it back again, this will<br>
change the SPM to be the other host which you want.<br>
<div>> How would that change affect the running VMs / would they try to migrate to the other HV ?<br>
</div>The VM migration will still be under the same cluster.<br>
<br>
SPM is simply used to write to the storage domains, one of the reasons<br>
we use the SPM is to avoid collisions when hosts write to the same<br>
storage domain.<br>
<div><div><br>
><br>
> Alex<br>
><br>
><br>
> On 01/17/2013 07:39 PM, Maor Lipchuk wrote:<br>
>> Hi Alex,<br>
>> The storage domains are part of the Data Center, and should not be<br>
>> related to clusters.<br>
>> Clusters are used for migrating VMs, which are the qemu processes,<br>
>> between hosts.<br>
>> Disks are created on the storage domains regardless to clusters.<br>
>><br>
>> The host which write the data in the storage domain to create the disk<br>
>> is the SPM.<br>
>> You should have only one SPM in each Data Center (You can spot which<br>
>> host is your SPM by looking at the SPM column in the hosts tab)<br>
>> When you create a disk you should be able to choose the storage domain<br>
>> which you want the disk to be created on.<br>
>><br>
>> Regards,<br>
>> Maor<br>
<br>
<br>
</div></div></blockquote></div></div></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><br>-- <br><div dir="ltr"><div><br></div>| RHCE | Senior Systems Engineer | <a href="http://www.vcore.co" target="_blank">www.vcore.co</a> | <a href="http://www.vsearchcloud.com" target="_blank">www.vsearchcloud.com</a> | <br>
</div>
</font></span></div>
</blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr"><div><br></div>| RHCE | Senior Systems Engineer | <a href="http://www.vcore.co" target="_blank">www.vcore.co</a> | <a href="http://www.vsearchcloud.com" target="_blank">www.vsearchcloud.com</a> | <br>
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