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ExpressCluster X 2.0 for Windows Reference Guide - Nec

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Chapter 7 Monitor resource details<br />

572<br />

Gateway<br />

Public LAN (Interconnect )<br />

Interconnect<br />

Server1 server2<br />

LAN<br />

Reactivation of the failover<br />

group A starts in server1.<br />

Monitor resource Monitor resource<br />

IP monitor<br />

IP monitor<br />

resource 1<br />

resource 1<br />

Failover Group A<br />

Disk resource 1<br />

Application resource 1<br />

Floating IP<br />

resource 1<br />

”Reactivation Threshold” is<br />

reactivation count on a server<br />

basis.<br />

First reactivation processing in<br />

server1<br />

server1: IP monitor resource1<br />

Reactivation count 3 times<br />

Failover count Zero<br />

server2: IP monitor resource 1<br />

Reactivation count Zero<br />

Failover count Zero<br />

No recovery action is taken<br />

because the status of failover<br />

group A is "Stopped,"<br />

When reactivation count exceeds the<br />

threshold on server1, failover of the failover<br />

group A takes place<br />

Reactivation is executed again because it has been detected that the status of the monitor target<br />

resource became normal and reactivation count has been reset be<strong>for</strong>e.<br />

<strong>ExpressCluster</strong> X <strong>2.0</strong> <strong>for</strong> <strong>Windows</strong> <strong>Reference</strong> <strong>Guide</strong>

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