3 Nodes Shared storage options

Sep 27, 2018
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Hi All,

Small home cluster here, no HA needed, just need the possibility to move VM's between 2 nodes in order to install regular updates or do hardware maintenance.

My cluster exists of 3 nodes, 2 of them are identical hardware (cpu i5 with 32GB ram) and host all the VM's, the 3th node is an intel NUC i5 with 8GB ram.
All 3 are joined in a cluster, so quorum is ok.

Right now the VM's reside on a Synology NAS over NFS. This works fine, but prevents me from keeping the NAS updated without shutting down all my VM's.

I was thinking if it was possible to create on the 2 identical nodes a shared storage with a 2TB drive in each node. Is this possible and what should I choose regarding the shared storage system?

Kind regards,
Eric
 

Rares

Active Member
Feb 28, 2017
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Hi Eric,

Just use ZFS and make sure to set the same storage name on both servers, for example 'local-zfs'.

You will setup replication between the node and the migration will be a breeze.

Bye,
Rares
 

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