Lets compatible block and NAS arrays take over heavy jobs from ESX hosts, for example disk zeroing, clones, VMFS locks and the copying done by Storage vMotion.
Also called vSphere Storage APIs - Array Integration.
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In the Ultra Transcenders books
2V0-16.252V0-13.252V0-15.252V0-18.25
Each book explains VAAI in context, with comparison tables and the common traps.
Terms in this definition
- NAS
Storage appliance serving files over a local network; Azure Files can stand in for or sit alongside it.
- Take over
Only an owner can set up scheduled refresh, data source credentials and automatic aggregations for a semantic model. This action, in the model's settings in the service, transfers ownership to whoever selects it.
- ESX
VMware's bare-metal hypervisor, installed on each host in a VCF fleet. Up to version 9.0 it was known as ESXi.
- VMFS
Clustered file system for block datastores, whether the storage is iSCSI, local or FC-attached. Unlike VMFS5, VMFS6 can use 4Kn devices and reclaims freed space by itself.
- Storage vMotion
Relocates a powered-on VM's files and virtual disks between datastores with no outage; the host can stay the same or change at the same time.
Related terms
- VAAI
A storage feature of VMware vSphere. Nutanix recommends leaving deduplication off for VAAI clones, as AOS deals with that duplicate data anyway.