Spreads a vSAN cluster's hosts equally across two availability zones, with a separate witness placed in a third location, keeping data available even when an entire site fails.
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In the Ultra Transcenders books
Each book explains vSAN stretched cluster in context, with comparison tables and the common traps.
Terms in this definition
- vSAN
VMware's software-defined storage, which combines local devices across a cluster's ESX hosts into one shared datastore. Available as OSA or ESA, VCF can use it as principal storage.
- Availability zones
Separate physical datacentre locations inside one region. Placing VMs in at least two of them earns a 99.99% SLA.
- LSDOU
The sequence in which Group Policy is processed: the local policy first, followed by site, domain and organisational unit policies. The nearest, last-processed setting takes effect unless Enforced or Block Inheritance alters that.