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<div>Hi Amier</div>
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<div>I don't think you have to use 0 and 1 datastores.</div>
<div>You can create image and system datastores and mount it to GlusterFS.</div>
<div>For example, create a new image datastore, let's say ONE assigns ID 120:</div>
<div> - create/export volume DS120 from openfiler</div>
<div> - mount it on one controller and all hosts under /var/lib/one/datastores/120</div>
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<div>Create cluster and system datastore (ie. 121) and do the same, you can point it to faster storage – this is where running VMs store disks.</div>
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<div>--<br>
Thank you,<br>
<br>
Dmitri Chebotarov<br>
VCL Sys Eng, Engineering & Architectural Support, TSD - Ent Servers & Messaging<br>
223 Aquia Building, Ffx, MSN: 1B5<br>
Phone: (703) 993-6175 | Fax: (703) 993-3404<br style="font-family: Helvetica; font-size: medium; ">
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<span style="font-weight:bold">From: </span>Amier Anis <<a href="mailto:mymabma@gmail.com">mymabma@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Monday, October 14, 2013 4:13 <br>
<span style="font-weight:bold">To: </span>"Ruben S. Montero" <<a href="mailto:rsmontero@opennebula.org">rsmontero@opennebula.org</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:users@lists.opennebula.org">users@lists.opennebula.org</a>" <<a href="mailto:users@lists.opennebula.org">users@lists.opennebula.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [one-users] OpenNebula with additional storage<br>
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<div class="gmail_default" style="font-size:small">hi,</div>
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<div class="gmail_default" style="font-size:small">any idea on this?</div>
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<div class="gmail_default" style="font-size:small">part of that, is /var/lib/one/datastores not necessary export from frontend?</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Sep 19, 2013 at 11:23 AM, Amier Anis <span dir="ltr">
<<a href="mailto:mymabma@gmail.com" target="_blank">mymabma@gmail.com</a>></span> wrote:<br>
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<div style="font-size:small"><b>Hi Ruben,</b></div>
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<div style="font-size:small">Thanks give some explanation. Just to ensure I have same picture and understand your words.</div>
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<li>I'm planned to use GlusterFS or iSCSI (openfiler) for both my datastore 1 and 2.</li><li>Do you mean default and system (0 and 1) can be expand to external storage? </li><li>Is that mean when I use ID 100 for datastore1 (192.168.1.11) then datastore2 (192.168.8.12) must be use ID 101 or must use same ID 100?</li></ol>
<div>Is the structure look like this?</div>
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<div>/var/lib/one/datastore/0 <-- default created by OpenNebula | default internal storage or can expand to external storage</div>
<div>/var/lib/one/datastore/1 <-- default created by OpenNebula | default inernal storage or can expand to external storage</div>
<div>/var/lib/one/datastore/101 <---- mount point from datastore 1</div>
<div>/var/lib/one/datastore/102 <---- mount point from datastore 2</div>
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<div class="gmail_extra">Thanks you.<span class="HOEnZb"><font color="#888888"><br>
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<b>.: Amier Anis :.</b><br>
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<div class="gmail_quote">On Thu, Sep 19, 2013 at 3:19 AM, Ruben S. Montero <span dir="ltr">
<<a href="mailto:rsmontero@opennebula.org" target="_blank">rsmontero@opennebula.org</a>></span> wrote:<br>
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<div dir="ltr">Hi
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<div>So I assume that you have 2 different NFS shares (or equivalent):</div>
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<div>About Mount Points</div>
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<div>They **must** use the same ID as the one assigned by OpenNebula. So if you want datastore with ID 100 be backed by datastore1 (192.168.8.11), then you must mount the volume on
<div style="font-size:small;display:inline"></div>
/var/lib/one/datastore/100. Same apply to 0,1 default and system datastores created by OpenNebula by default.</div>
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<div>About Datastore Types and Usage<br>
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<div>There are two types of Datastores: Images where you usually store base images (e.g. default ID:1) and system where the VMs run from (e.g. system ID:0). And there are three types of images: persistent no copy from image to system datastores (link); no-persistent
images are copied (cloned) to the system datastore; and volatile disks, always created in the datastore.</div>
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<div>Summary, register an image (oneimage create) will take space from your image DS, deploying a vm (onevm deploy) will take space from your system DS. How much space? It depends on the image (persistent vs non-persistent) and the format raw vs qcow2.</div>
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<div>You also need to consider that checkpoints (suspend/stop a VM) will generate a checkpoint file to be stored also in the system DS</div>
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<div>Hope you can now plan better your storage.</div>
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<div>Cheers</div>
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<div>Ruben</div>
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<div>On Wed, Sep 18, 2013 at 4:18 PM, Amier Anis <span dir="ltr"><<a href="mailto:mymabma@gmail.com" target="_blank">mymabma@gmail.com</a>></span> wrote:<br>
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<div style="font-size:small">Guys,</div>
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<div style="font-size:small">any suggestion or advise. really need your help.</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Sep 17, 2013 at 7:41 PM, Amier Anis <span dir="ltr">
<<a href="mailto:mymabma@gmail.com" target="_blank">mymabma@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
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<div style="font-size:small">Hi,</div>
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<div style="font-size:small">I would like to know how I should implement the datastore if I have 2 different size of storage but with same datastore types (shared FS). As I know I need to I need to mount the target datastore to very hosts. </div>
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<div style="font-size:small">However, I little bit confuse on the datastore structure and where to mount the the first datastore1 (192.168.8.11) and 2nd datastore2 (192.168.8.12). Is that correct if i mount the datastore like this at every node?</div>
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<div style="font-size:small"><b>Method 1</b></div>
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<li>datastore1 to /var/lib/one/datastore/0<br>
</li><li>datastore2 to /var/lib/one/datastore/1<br>
</li></ol>
<div>or i need to like this</div>
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<div><b>Method 2</b></div>
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<li>datastore1 to /var/lib/one/datastore/1<br>
</li><li>datastore2 to /var/lib/one/datastore/2 </li></ol>
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<div>Is the /var/lib/one/datastore/0 is for frontend use? how much space we need if we have 1TB of datastore or VM?</div>
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<div>Is there any specfic number that I must use and cannot use to mount the datastore?</div>
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<div>How do i set the additional datastore?</div>
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<div>Hope you can advise further.<br>
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<div style="font-size:small">OpenNebula : 4.x<br>
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<div style="font-size:small">OpenNebula Sunstone : 192.168.8.10</div>
<div style="font-size:small">Storage 1 / Datastore 1 : 192.168.8.11<br>
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<div style="font-size:small">Storage 2 / Datastore 2 : 192.168.8.12<br>
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<div style="font-size:small">Your kind assistant is highly sought.</div>
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<p>Thanks you.<br>
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Regards & Best Wishes,<br>
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<b>.: Amier Anis :.</b></p>
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-- <br>
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<div>-- </div>
<div>Join us at OpenNebulaConf2013 in Berlin, 24-26 September, 2013</div>
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<div>-- </div>
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Ruben S. Montero, PhD<br>
Project co-Lead and Chief Architect<br>
OpenNebula - The Open Source Solution for Data Center Virtualization<br>
<a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:rsmontero@opennebula.org" target="_blank">
rsmontero@opennebula.org</a> | @OpenNebula</div>
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