Veritas NetBackup™ for Nutanix Acropolis Hypervisor (AHV) Administrator's Guide
- Introduction to NetBackup for Acropolis Hypervisor (AHV)
- Prerequisites and things to consider before using Nutanix for AHV
- Configuring NetBackup communication with AHV
- Configuring secure communication between the Nutanix Acropolis Hypervisor server and NetBackup host
- Managing SSL certificates through ECA framework
- Adding a backup host to the NetBackup master server
- Configuring NetBackup policies for AHV
- Backup and recovery
- Back up the Nutanix AHV virtual machines
- Overview of the Nutanix AHV virtual machines recovery process
- Recovering a Nutanix AHV VM using the command line for Hypervisor policy
- Troubleshooting issues
- Appendix A. NetBackup commands to backup and restore Nutanix AHV virtual machines
- Appendix B. Protect Nutanix AHV virtual machines with BigData policy
Basic phases in a NetBackup backup of an AHV
The following table provides an overview of the processes that NetBackup undertakes during an AHV backup.
Phase 1: Validation of thepolicy
NetBackup validates thepolicy that you have created to backup the AHV virtual machines. This step happens when you create and save the policy.
Phase 2: Initiation of a backup job
A backup job is triggered manually or according to the schedule that you have specified during policy creation.
Phase 3: Discovery of clients and commencing to backup the data on the clients
The backup process triggers three jobs - a parent job. a snapshot job, and a child job.
The parent job runs the nbdiscover process and the nbcs process discovers the VMs for the matching criteria and then starts the snapshot jobs for each of the discovered client.
Once the snapshot job completes, a backup job initiates that mounts the snapshot at the /usr/openv/tmp/ntxmnt location. The backup job then starts the actual read-write operation to backup the data on a disk.
Phase 4: Completion of the backup job
On successful completion of a backup, the NetBackup client on the backup host unmounts and then deletes the snapshot.
NetBackup Accelerator and Incremental feature uses Nutanix AHV's changed block tracking mechanism to get the metadata about the blocks that have changed between any two snapshots of a file. Nutanix requires two snapshots to provide this changed block information.
NetBackup provides previous backup snapshot details and the current backup snapshot details to get the changed region information. Once this data is collected, NetBackup deletes the previous backup snapshot and keeps the current backup snapshot for next job to get the changed region.
Based on the schedules in the policy, the following scenarios occur: