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</o:shapelayout></xml><![endif]--></head><body lang=RU link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>You can’t have two cluster on one phy node, but:<o:p></o:p></span></p><ol style='margin-top:0cm' start=1 type=1><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level1 lfo1'><span lang=EN-US>You may have one Pacemaker cluster and run all your apps as independent resources.<o:p></o:p></span></li><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level1 lfo1'><span lang=EN-US>You may setup Proxmox VE on your two nodes, create 4 VMs and setup two clusters, one per your app.<o:p></o:p></span></li></ol><p class=MsoNormal><span lang=EN-US>Extra virtualization layer will eat some resources, not so much, but provide you with better flexibility in every aspect.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Also, one important note: consider the third node for arbiter. Two-node-cluster is always very, very bad idea. You may use a very small node for arbiter, but it is much better to have it.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>BTW, the same about 4 baremetal, it is much better then 2 bit in this case fifth arbiter node is a good idea.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Sincerely,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Alex<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='mso-fareast-language:RU'>From:</span></b><span style='mso-fareast-language:RU'> Users <users-bounces@clusterlabs.org> <b>On Behalf Of </b>Ruggiero Angelo<br><b>Sent:</b> Thursday, May 15, 2025 7:39 PM<br><b>To:</b> users@clusterlabs.org<br><b>Subject:</b> [ClusterLabs] Multiple Clusters on a single server<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=DE-CH>Hello All,<o:p></o:p></span></p><p class=MsoNormal><span lang=DE-CH><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Does anyone have experience running multiple clusters on the same Linux (RHEL) server.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I ask because for a SAP HA setup with pacemaker SAP/RHEL recommend a separate cluster for the application and server part. i.e SAP itself in one cluster and Hana and the other.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>We are trying to have only two baremetal servers in one site rather than four.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Angelo<o:p></o:p></span></p><p style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:1.0pt;margin-left:0cm'><span lang=EN-GB style='font-size:8.0pt'> </span><span lang=DE-CH><o:p></o:p></span></p><p style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:1.0pt;margin-left:0cm'><span lang=EN-GB style='font-size:8.0pt'>Based on previous e-mail correspondence with you and/or an agreement reached with you, we consider ourselves authorized to contact you via unsecured e-mail. </span><span lang=DE-CH><o:p></o:p></span></p><p style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:1.0pt;margin-left:0cm'><span lang=EN-GB style='font-size:8.0pt'>Warning: </span><span lang=DE-CH><o:p></o:p></span></p><p style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:1.0pt;margin-left:0cm'><span lang=EN-GB style='font-size:8.0pt'>(a) E-mails can involve SUBSTANTIAL RISKS, e.g. lack of confidentiality, potential manipulation of contents and/or sender's address, incorrect recipient (misdirection), viruses etc. We assume no responsibility for any loss or damage resulting from the use of e-mails. 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