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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt; font-family:"Calibri","sans-serif"; color:#1F497D">Hi,</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt; font-family:"Calibri","sans-serif"; color:#1F497D">You should to study the syslog of node 1,2,3,4. Why they disconnect with node 5, may be they emergency restarted for disconnection with storage,
or TCP channels.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt; font-family:"Calibri","sans-serif"; color:#1F497D">The storage connected with them should be stable for disk heartbeat.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt; font-family:"Calibri","sans-serif"; color:#1F497D">May be the TCP connections or storage connections(such as IP/FC SAN).</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
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