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<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>Hi Tino,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>Thank you for the quick feedback, I am glad
to see you can help us setup this use case.</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>We will start the opennebula trial soon, if
any issues encountered, I will turn to you ;-)</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>Best Regards, </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>YE Lei </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>-----Original Message-----<br>
From: Tino Vazquez [mailto:tinova@opennebula.org] <br>
Sent: Friday, February 18, 2011 1:43 AM<br>
To: YE LEI<br>
Cc: Ignacio M. Llorente; users@lists.opennebula.org<br>
Subject: Re: [one-users] Does Opennebula 2.0.1 support disaster recovery?</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>Hi YE Lei,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>The first issue that I see here is the
migration, since it is</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>impossible to migrate a VM from a host that
is down.</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>What is possible is the reestablishment of
the service in placeB,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>where the VM images should be previously
placed (to avoid transferring</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>them, although this is possible as well),
so only the VM state (in the</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>form of snapshots of memory, and deltas of
what has changed in the</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>disk images since the VM was up) needs to
be transferred. This</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>snapshots should reside in a shared
filesystem (to avoid losing access</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>when the host is down), or synced in placeB
using DRDB for instance.</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>OpenNebula at place A can detect that the
hosts are down and start the</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>reestablishment of the service talking with
the OpenNebula at place B.</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>This setup can be achieved with some minor
adjustments to the</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>out-of-the-box OpenNebula.</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>For extra protection, the OpenNebula at
placeA could be running two</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>instances in different servers, to avoid
the fail in the disaster</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>recovery in case the OpenNebula front-end
goes down.</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>This is an interesting use case, we will be
happy to provide</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>assistance in the setup of this scenario.</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>Best regards,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>-Tino</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>--</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>Constantino V</span></font><font
face="Times New Roman"><span lang=EN-US style='font-family:"Times New Roman"'>á</span></font><span
lang=EN-US>zquez Blanco, MSc</span></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>OpenNebula Major Contributor / Cloud Researcher</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>www.OpenNebula.org | @tinova79</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>On Thu, Feb 17, 2011 at 10:22 AM, YE LEI
<Lei.Ye@alcatel-sbell.com.cn> wrote:</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> For example, we have a product (in VM)
running in the servers on placeA,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> and in case disaster happens on
placeA, all servers on placeA are</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> damaged, could opennebula migrate this
product to the severs on</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> placeB(thousands miles away from
placeA) which are managed by opennebula</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> in the cloud?</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Best Regards,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> YE Lei</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> -----Original Message-----</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> From: Ignacio M. Llorente
[mailto:imllorente@opennebula.org]</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Sent: Thursday, February 17, 2011 4:55
PM</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> To: YE LEI</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Cc: users@lists.opennebula.org</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Subject: Re: [one-users] Does
Opennebula 2.0.1 support disaster</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> recovery?</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Please, could you elaborate on the use
case for this? Which</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> functionality would you require?</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Thanks</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> On Thu, Feb 17, 2011 at 7:58 AM, YE
LEI <Lei.Ye@alcatel-sbell.com.cn></span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> wrote:</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> Hello,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> As mentioned in the mail title,
does Opennebula 2.0.1 support disaster</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> recovery cross-regional?</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> Best Regards,</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> YE Lei</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>>
_______________________________________________</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> Users mailing list</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> Users@lists.opennebula.org</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>>
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> --</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Ignacio M. Llorente, PhD, MBA</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Project co-Lead and Director</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> OpenNebula - The Open Source Toolkit
for Cloud Computing</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> www.OpenNebula.org |
imllorente@opennebula.org</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>
_______________________________________________</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Users mailing list</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> Users@lists.opennebula.org</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>>
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org</span></font></p>
<p class=MsoPlainText><font size=2 face=微软雅黑><span
lang=EN-US style='font-size:10.0pt'>> </span></font></p>
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