Hello Johannes, You need 3 nodes because the database quorum.
Thanks, Ludovic Zammit Product Support Engineer Principal Lead Cell: +1.613.670.8432 Akamai Technologies - Inverse 145 Broadway Cambridge, MA 02142 Connect with Us: <https://community.akamai.com/> <http://blogs.akamai.com/> <https://twitter.com/akamai> <http://www.facebook.com/AkamaiTechnologies> <http://www.linkedin.com/company/akamai-technologies> <http://www.youtube.com/user/akamaitechnologies?feature=results_main> > On Mar 29, 2023, at 7:44 AM, Mudrich, J. via PacketFence-users > <packetfence-users@lists.sourceforge.net> wrote: > > Hello everyone, > > I’m trying to figure out how to set up a cluster over two different subnets. > I just need a DB replication for my two servers. So I read through the > clustering guide. But I’m a bit lost. > There are several sections where it’s mentioned you need at least 3 servers. > But there is no explanation why you need 3 of them. > Even the sections 7.1 and 7.3, which seem to fit my scenario, state I need 3 > servers on my primary site / subnet. Why? > > Thanks > Johannes > > > > > > Johannes Mudrich > Mitarbeiter > Verwaltung, IT > > Altmark-Klinikum gGmbH > Ernst-von-Bergmann-Straße 22 > 39638 Gardelegen > > Tel.: 03907 791229 > Fax.: 03907 791248 > Mail: j.mudr...@altmark-klinikum.de <mailto:j.mudr...@altmark-klinikum.de> > > > > <https://urldefense.com/v3/__https://www.salusaltmarkholding.de__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawCuAnObWA$><sah.png> > > <https://urldefense.com/v3/__https://www.salusaltmarkholding.de/__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawAavKXWcg$> > > Salus Altmark Holding gGmbH > Tel.: +49 39325700 <tel:+4939325700> > Sitz der Gesellschaft: > Seepark 5 | 39116 Magdeburg > www.salusaltmarkholding.de > <https://urldefense.com/v3/__https://www.salusaltmarkholding.de__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawCuAnObWA$> > > <https://urldefense.com/v3/__https://www.instagram.com/salusaltmarkholding/__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawBWm7IFiw$><instagram.png> > > <https://urldefense.com/v3/__https://www.instagram.com/salusaltmarkholding/__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawBWm7IFiw$> > <facebook.png> > <https://urldefense.com/v3/__https://www.facebook.com/SalusAltmarkHolding__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawCj13ZiGw$> > > <https://urldefense.com/v3/__https://www.facebook.com/SalusAltmarkHolding__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawCj13ZiGw$> > <linkedin.png> > <https://urldefense.com/v3/__https://de.linkedin.com/company/salus-ggmbh__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawCLO8QFRQ$> > > <https://urldefense.com/v3/__https://de.linkedin.com/company/salus-ggmbh__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawCLO8QFRQ$> > <xing.png> > <https://urldefense.com/v3/__https://www.xing.com/pages/salusaltmarkholdingggmbh__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawB39K-aeA$> > > <https://urldefense.com/v3/__https://www.xing.com/pages/salusaltmarkholdingggmbh__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawB39K-aeA$> > <youtube.png> > <https://urldefense.com/v3/__https://www.youtube.com/user/SALUSgGmbH__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawDmLtvukg$> > > <https://urldefense.com/v3/__https://www.youtube.com/user/SALUSgGmbH__;!!GjvTz_vk!V1DOmUhggQRn0sreksTKIYOoAQv5IFU5rAZQ_94YF0yFORDN2TKXAtQVFHvwctwENIjJVYXNt9YoZuFe6AfYp37xrb3cawDmLtvukg$> > Registergericht: AG Stendal: HRB 112594 > Geschäftsführer: Jürgen Richter > Aufsichtsratsvorsitz: Wolfgang Beck > Gemäß Art. 13 DSGVO informieren wir darüber, dass Ihre Daten elektronisch > gespeichert werden. 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