topic Re: Minimum Cluster size VM Essentials in HPE Morpheus VM Essentials Software

Minimum Cluster size VM Essentials

Rplata68 — Thu, 17 Jul 2025 10:41:07 GMT

Why is required for VM Essentials, minimun 3 nodes for HA with iSCSI or Fibre Channel (Shared Storage)? Other solutions like Hyper-V, VMware, works fine with two-nodes in HA.

Re: Minimum Cluster size VM Essentials

Arnout_Verbeken — Wed, 16 Jul 2025 23:04:20 GMT

Hello,

3 nodes is a minimum for iSCSI/FC because we rely on GFS2 Cluster Filesystem which requires 3 nodes minimum.
You can find another thread here:
https://community.hpe.com/t5/hpe-morpheus-vm-essentials/configure-gfs-in-single-node-instead-of-3-minimum-hpe-vme/td-p/7235413

We do support 2 node clusters with NFS Datastores (also on Simplivity) and with the Alletra 10K Storage Plugin for VME. (where you do not need a shared datastore but every VM has his own volume. An additional NFS Share can be used for Heartbeating)

I hope this helps.

Re: Minimum Cluster size VM Essentials

Rplata68 — Thu, 17 Jul 2025 15:42:41 GMT

Thanks, it is very helpful!!