https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246319#M3302 Why don't you run a FOM in the ESXs you already have? If you install on a local disk (not a iSCSI LUN) you'll have a functional VM even if there's a storage outage. Run 2 FOMs (one in each ESX) for extra security :-) . Wed, 07 Jul 2010 21:10:22 GMT Fran Garcia 2010-07-07T21:10:22Z https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246317#M3300 Hi,<BR /><BR />Can someone share their thoughts on the scenario described below?<BR /><BR />- multiple remote sites, each one of them independent<BR />- goal: deliver as much local resiliency as possible (site-to-site fail-over is out of scope / not required)<BR />- two physical servers (with internal storage only) with vSphere 4 Advanced at each site<BR />- two VSAs at each site<BR />- two Windows VMs at each site - to be protected by vSphere Fault Tolerance<BR /><BR />My understanding of P4000 fail-over process is that Failover Manager is a must for the above to work (correct me if that's not the case)<BR /><BR />And this is what I think regarding FOM hosting:<BR />1) A third physical box running FOM at each site (desktop with VMware Player? Server with ESXi?)<BR />OR<BR />2) Multiple instances of FOM installed on one ESX server at the central site. Each FOM instance will access their relevant VSA clusters &amp; maintain quorums remotely over WAN links.<BR /><BR />Comments please?<BR /><BR />Regards,<BR />Radek Mon, 05 Jul 2010 10:08:48 GMT https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246317#M3300 raadek 2010-07-05T10:08:48Z https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246318#M3301 You would need a FOM at each site to maintain quorum in case of a failure. For FOM hosting,option 1 would work. Option 2 ill create a single point of failure and latency. Wed, 07 Jul 2010 03:17:53 GMT https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246318#M3301 ajamil786 2010-07-07T03:17:53Z https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246319#M3302 Why don't you run a FOM in the ESXs you already have? If you install on a local disk (not a iSCSI LUN) you'll have a functional VM even if there's a storage outage. Run 2 FOMs (one in each ESX) for extra security :-) . Wed, 07 Jul 2010 21:10:22 GMT https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246319#M3302 Fran Garcia 2010-07-07T21:10:22Z https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246320#M3303 Hi,<BR />You may wish to know that you can only have 1 FOM or a VM per management group.<BR />Mark... Thu, 08 Jul 2010 07:21:08 GMT https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246320#M3303 Mark... 2010-07-08T07:21:08Z https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246321#M3304 Guys,<BR /><BR />Many thanks for your replies.<BR /><BR />Long story short, HP/LHN confirmed that a third physical box running FOM at each site is required to maintain resiliency.<BR /><BR />Regards,<BR />Radek Thu, 22 Jul 2010 14:53:48 GMT https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246321#M3304 raadek 2010-07-22T14:53:48Z https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246322#M3305 Thread closed Thu, 22 Jul 2010 14:55:25 GMT https://community.hpe.com/t5/storevirtual-storage/multiple-sites-with-two-node-clusters-fom/m-p/5246322#M3305 raadek 2010-07-22T14:55:25Z