<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Arabic Transparent, Arial;font-size:13px"><div class="qtdSeparateBR"><br><br></div><div style="display: block;" id="yui_3_16_0_ym19_1_1460962127468_40084" class="yahoo_quoted"><div id="yui_3_16_0_ym19_1_1460962127468_40083" style="font-family: Arabic Transparent, Arial; font-size: 13px;"><div id="yui_3_16_0_ym19_1_1460962127468_40082" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif; font-size: 16px;">Hi,<div id="yui_3_16_0_ym19_1_1460962127468_40199" class="y_msg_container"><div id="yiv2572841091"><div id="yui_3_16_0_ym19_1_1460962127468_40198"><div id="yui_3_16_0_ym19_1_1460962127468_40197" style="color:#000;background-color:#fff;font-family:Arabic Transparent, Arial;font-size:13px;"><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23822"><br></div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23798" dir="ltr">I have 4 CentOS servers (App1,App2.App3 and App4). I created a cluster for App1 and App2 with a IP float and it works well.</div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23800" dir="ltr"> In our infrastructure App1 works only with App3 and App2 only works with App4. I mean we have 2 server sets (App1 and App3) , (App2 and App4).</div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23610" dir="ltr">So I want when server app1 is down and app2 will Online node, App3 will offline too and App4 will Online and vice versa, I mean when App3 is down and App4 will Online, App1 will offline too.</div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23737" dir="ltr"><br></div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23666" dir="ltr"><br></div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23651" dir="ltr">How can I do with pacemaker ? we have our self service on servers so how can I user Pacemaker for monitoring these services?<br></div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23802" dir="ltr"><br></div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23820" dir="ltr">Thanks for reply.</div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23824" dir="ltr"><br></div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23803" dir="ltr">Regards.</div><div id="yiv2572841091yui_3_16_0_ym19_1_1460962127468_23827" dir="ltr">H.Yavari<br></div></div></div></div><br><br></div> </div> </div> </div></div></body></html>