Synology SA3400 Virtual Machine Manager s White Paper - Page 24

roles for various VMs. The minimum recommended number of three nodes provides a, measure of redundancy

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of virtual machines. An uneven total number of nodes ensures that the cluster can reach a quorum (majority) for decision-making and allows one computing node to be taken offline for maintenance without losing redundancy. A very different, lean setup was chosen to run webservices for the Synology website. Three FS series compute nodes in an all-flash configuration each fulfil both computing and storage roles for various VMs. The minimum recommended number of three nodes provides a measure of redundancy, while recovery demands are met by having each node replicate its data to one other node. Case Studies 22

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22
Case Studies
of virtual machines. An uneven total number of nodes ensures that the cluster can reach a
quorum (majority) for decision-making and allows one computing node to be taken offline
for maintenance without losing redundancy.
A very different, lean setup was chosen to run webservices for the Synology website. Three
FS series compute nodes in an all-flash configuration each fulfil both computing and storage
roles for various VMs. The minimum recommended number of three nodes provides a
measure of redundancy, while recovery demands are met by having each node replicate its
data to one other node.