Acropolis Change Block Tracking (CBT) for Backup Vendors
With AOS 5.0 backup vendors can take full advantage of Nutanix based CBT (hypervisor agnostic) to take both incremental and differential backups of disks and VMs more efficiently. If your cluster only running VMware vSphere you already have CBT via the hypervisor; however with Nutanix CBT similar capabilities are available to the base platform enabling multi-hypervisor CBT support. Administrator will now be able use the same backup tools and methods across all supported hypervisors.
Nutanix CBT utilizes the new REST 3.0 API that can be used to query for the changed meta-data regions given any two snapshots of a virtual disk or virtual machine. The approach is valuable for taking incremental and differential backups; and even useful while taking full backups because the API identifies regions that are spare (zeroed), therefore saving on read operations.
Nutanix will soon announce backup partners integrating natively with the platform.
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