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<p class="MsoNormal">Hello!<br></p><p class="MsoNormal"><br></p><p class="MsoNormal">I am trying to find the best approach for creating a
distributed cluster based on the following specs:</p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><span style=""><span style="">-<span style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>2 datacenters (close to each other and connected
by fiber channel);</p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><span style=""><span style="">-<span style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>2 storages (one on each datacenter);</p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><span style=""><span style="">-<span style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>1 server on each data center</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">In an event of a failure of a single datacenter, the
remaining datacenter must be responsible for assuring all services.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">My approach would be to (I don’t exactly know if it is
possible):</p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><span style=""><span style="">-<span style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>Present one LUN from each storage to both
servers:</p>
<p class="MsoListParagraph" style="margin-left: 72pt;"> server A (DC
A) - LUN A (STORAGE A)</p>
<p class="MsoNormal" style="margin-left: 18.6pt; text-indent: 35.4pt;">
LUN B (STORAGE B)</p>
<p class="MsoNormal" style="margin-left: 54pt;">
server B (DC B) - LUN B (STORAGE B)</p>
<p class="MsoListParagraph" style="margin-left: 72pt;">
<span style="" lang="PT">LUN A
(STORAGE A)</span></p>
<p class="MsoListParagraph" style="margin-left: 72pt;"><span style="" lang="PT"> </span></p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><span style=""><span style="">-<span style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>Create one logical volume on each of the servers
using RAID1:</p>
<p class="MsoListParagraph"> <span style="" lang="PT">server A (DC A) - LVM A /mydata [RAID1 de LUN A e LUN B]</span></p>
<p class="MsoListParagraph"><span style="" lang="PT">
server B (DC B) - LVM B /mydata [RAID1 de LUN B e LUN A]</span></p>
<p class="MsoListParagraph"><span style="" lang="PT"> </span></p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><span style=""><span style="">-<span style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>Configure a RedHat Cluster;</p>
<p class="MsoListParagraph" style="text-indent: -18pt;"><span style=""><span style="">-<span style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">
</span></span></span>Put /mydata on the cluster;</p>
<p class="MsoListParagraph" style="margin-left: 72pt;"> </p>
<p class="MsoNormal">Is this a feasible approach? Is there a better option?</p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> A.</span></p>