Hi Branko,<div><br></div><div>sorry for the delay. Take for instance the iSCSI drivers (similar with LVM), what OpenNebula does there is connect to the iSCSI server and manage (create, exporte, remove) the iSCSI targets, and discovers them from the host nodes. You could take iSCSI drivers as a model and make them work with FB very easily, you just need to implement some actions [1].</div>
<div><br></div><div>However I'd like to stress what Hans-Joachim said earlier in this thread. You could set up an underlying shared storage configuration using FB and use the "shared" drivers. That would be absolutely transparent to OpenNebula. As long as a certain path, say /var/lib/one/datastores is available in all hosts and RW shared, OpenNebula will work perfectly, and no coding is needed.</div>
<div><br></div><div>Cheers,</div><div>Jaime</div><div><br></div><div>[1] <a href="https://github.com/OpenNebula/one/blob/one-3.6/src/mad/sh/scripts_common.sh#L309">https://github.com/OpenNebula/one/blob/one-3.6/src/mad/sh/scripts_common.sh#L309</a><br>
<br><div class="gmail_quote">On Thu, Sep 20, 2012 at 8:43 PM, Branko Tanovic <span dir="ltr"><<a href="mailto:branko.tanovic@metropolitan.ac.rs" target="_blank">branko.tanovic@metropolitan.ac.rs</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Thank you for your replies . <br>
<br>
I would be more than welcome to share the ,speed and testing
results on the system,<br>
currently we are testing OpenNebula on smaller system and with
software iSCSI .<br>
One thing we really like is ability to tune system by are need
which very neat and opennebula <br>
just does that , many thanks to developers of OpenNebula.<br>
<br>
One think that worries me is Fiber Channel support in OpenNebula I
was looking for some example implementations of FC and OpenNebula
but could not find none in <br>
docs for 3.6 <a href="http://opennebula.org/documentation:rel3.6:sm" target="_blank">http://opennebula.org/documentation:rel3.6:sm</a>
nothint about FC could be found. <br>
Only thing I could find is 2.0 docs <a href="http://opennebula.org/documentation:archives:rel2.0:features" target="_blank">http://opennebula.org/documentation:archives:rel2.0:features</a><br>
which say is it supports FC. <br>
Only think I saw is cLVM Jaime Malis and Nicolas Aguis talking
about cLVM in 3.6. <br>
Does driver cLVM work now with multiple hosts sharing Fiber
Channel Storage? Any experience <br>
<br>
/ recommendation with FC ?<div><div class="h5"><br>
<br>
<br>
On 09/20/2012 10:57 AM, Sándor Guba wrote:<br>
</div></div></div><div><div class="h5">
<blockquote type="cite">I highly recommend to build a prototype for your
system. You can test hypervisors, transfer drivers etc on 2-3
computers. OpenNebula drivers are written in ruby and bash script
that you can customize for your environment. Count in that
OpenNebula developers are very helpfull :). You have a lot of
options to fine tune your system. For example I changed the image
transfer drivers to run on NFS server locally not on the network
wich doubled the clone speed. If you setup that system I would be
glad to hear your experiences and speed statistics :).<br>
<br>
<div class="gmail_quote">2012/9/6 Branko Tanovic <span dir="ltr"><<a href="mailto:branko.tanovic@metropolitan.ac.rs" target="_blank">branko.tanovic@metropolitan.ac.rs</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Hi,<br>
We are small University located in Belgrade, Serbia , <br>
our current information system <br>
is created mostly of different hardware manufactures,we use<br>
Citrix Xen Server Free Version primarily for ability to run
on<br>
bare metal configuration. <br>
Recently we are in process of buying IBM Blades servers with
StoreWise V7000 and we would like to <br>
switch to OpenNebula Cloud , mainly because we use a lot of
open source technology and <br>
are budget is tight.<br>
This is our configuration <br>
<br>
<table cols="2" border="0" cellspacing="0">
<colgroup width="419"></colgroup> <colgroup width="80"></colgroup>
<tbody>
<tr>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" height="56" align="LEFT" valign="MIDDLE"><font color="#000000">IBM
BladeCenter 2 x cpu E5-2640 2x 146GB na 15k,
112GB DDR3 two 8Gbps FC</font></td>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" align="CENTER" valign="MIDDLE"><font color="#000000">7
pcs<br>
</font></td>
</tr>
</tbody>
</table>
<br>
<br>
<br>
<table cols="2" border="0" cellspacing="0">
<colgroup width="419"></colgroup> <colgroup width="80"></colgroup>
<tbody>
<tr>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" height="56" align="LEFT" valign="MIDDLE"><font color="#000000">IBM
Storwize V7000 Control Enclosure 16GB cache, 8 x
FC ports, 4 iSCSI port, 24<br>
</font></td>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" align="CENTER" valign="MIDDLE"><font color="#000000">1
pcs<br>
</font></td>
</tr>
<tr>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" height="20" align="LEFT" valign="MIDDLE"><font color="#000000">256
GB 2.5-inch SSD HDD</font></td>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" align="CENTER" valign="MIDDLE"><font color="#000000">24
pcs<br>
</font></td>
</tr>
<tr>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" height="74" align="LEFT" valign="MIDDLE"><font color="#000000">IBM
Storwize V7000 expansion enclosure <br>
</font></td>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" align="CENTER" valign="MIDDLE"><font color="#000000">2
pcs<br>
</font></td>
</tr>
<tr>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" height="20" align="LEFT" valign="MIDDLE"><font color="#000000">3TB
3.5 in. 7.2k NL SAS HDD</font></td>
<td style="border-top:1px solid #000000;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000" align="CENTER" valign="MIDDLE"><font color="#000000">24
pcs<br>
</font></td>
</tr>
</tbody>
</table>
<br>
<br>
Most of our vms/ applications use tomcat, mysql ,lamp,
alfresco dms ,SAP , windows 2008 server.<br>
<br>
<br>
<br>
The question is is this configuration good for implementing
OpenNebula solution? <br>
<br>
Can Front-End run virtualized on kvm or xen nodes ?<br>
<br>
Does nodes access directly to shared storage iSCSI ?<br>
<br>
<br>
Some remarks,recommendation and experience would be nice. <br>
<br>
<br>
Thank you Very Very much for the help. <br>
<span><font color="#888888"> <br>
Branko Tanovic<br>
<br>
<br>
<br>
<br>
</font></span></div>
<br>
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</blockquote>
</div>
<br>
</blockquote>
<br>
<br>
</div></div></div>
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<br></blockquote></div><br></div><br clear="all"><div><br></div>-- <br>Jaime Melis<br>Project Engineer<br>OpenNebula - The Open Source Toolkit for Cloud Computing<br><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:jmelis@opennebula.org" target="_blank">jmelis@opennebula.org</a><br>