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2-node cluster + qdevice

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SLsnkrslvr@alien.topB
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Hi,

I’ve been using Proxmox on a mini pc for almost a year and now I would like to test/learn clustering and HA.

I have just receive a HP 600 G9 mini that I would like to use as main “beefy” node, with zfs on 2 nvme drives. I also have an old Intel NUC i5 525U and a Rpi 4.

what I would like to try is creating a 2-node cluster (hp mini + NUC) and Rpi as a qdevice.

what could be the best practices in terms of shared storage / HA? is shared storage a must? I would like to have my critical services in HA (home assistant, ngnix, omada controller etc)

don’t know if could help, but I also have a Synology mounted as NFS storage.

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RealPjotr@alien.topB
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You don’t need shared storage. The simple method is to use ZFS, make sure each node ZFS has the same pool name. Then you can setup replication of VM images and HA config.

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Xenkath@alien.topB
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One drawback of using replication instead of shared storage is that all data written since the last replication job will be lost during failover. Not ideal for mission critical services or anything that relies on a database. Otherwise it’s a good solution.

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