NetBackup™ Deployment Guide for Azure Kubernetes Services (AKS) Cluster
- Introduction to NetBackup on AKS
- Deployment with environment operators
- Assessing cluster configuration before deployment
- Deploying NetBackup
- Preparing the environment for NetBackup installation on AKS
- Recommendations of NetBackup deployment on AKS
- Limitations of NetBackup deployment on AKS
- About primary server CR and media server CR
- Monitoring the status of the CRs
- Updating the CRs
- Deleting the CRs
- Configuring NetBackup IT Analytics for NetBackup deployment
- Managing NetBackup deployment using VxUpdate
- Migrating the node pool for primary or media servers
- Deploying MSDP Scaleout
- Monitoring NetBackup
- Monitoring MSDP Scaleout
- Managing the Load Balancer service
- Performing catalog backup and recovery
- Managing MSDP Scaleout
- About MSDP Scaleout maintenance
- Uninstalling MSDP Scaleout from AKS
- Troubleshooting
- View the list of operator resources
- View the list of product resources
- View operator logs
- View primary logs
- Pod restart failure due to liveness probe time-out
- Socket connection failure
- Resolving an invalid license key issue
- Resolving an issue where external IP address is not assigned to a NetBackup server's load balancer services
- Resolving the issue where the NetBackup server pod is not scheduled for long time
- Resolving an issue where the Storage class does not exist
- Resolving an issue where the primary server or media server deployment does not proceed
- Resolving an issue of failed probes
- Resolving token issues
- Resolving an issue related to insufficient storage
- Resolving an issue related to invalid nodepool
- Resolving a token expiry issue
- Resolve an issue related to inconsistency in file ownership
- Resolve an issue related to KMS database
- Resolve an issue related to pulling an image from the container registry
- Resolving an issue related to recovery of data
- Check primary server status
- Pod status field shows as pending
- Ensure that the container is running the patched image
- Getting EEB information from an image, a running container, or persistent data
- Appendix A. CR template
Prerequisites
Azure Kubernetes cluster
Your Azure Kubernetes cluster must be created with appropriate network and configuration settings.
Supported Azure Kubernetes cluster version is 1.21.x and later.
Availability zone for AKS cluster must be disabled.
At least one storage class is backed with Azure disk CSI storage driver "disk.csi.azure.com", and allows volume expansion. It must be in LRS category with Premium SSD. For example, the built-in storage class "managed-csi-premium". It is recommended that the storage class has "Retain" reclaim.
Cert-Manager must be installed.
A Kubernetes Secret that contains the MSDP credentials is required.
See Secret.
Enable AKS Uptime SLA.
AKS Uptime SLA is recommended for a better resiliency.
For information about AKS Uptime SLA and to enable it, see Azure Kubernetes Service (AKS) Uptime SLA.
Azure container registry (ACR)
Use existing ACR or create a new one. Your Kubernetes cluster must be able to access this registry to pull the images from.
Node Pool
You must have a dedicated node pool for MSDP Scaleout created. Azure availability zone must be disabled.
The Azure autoscaling allows your node pool to scale dynamically as required. If Azure autoscaling is not enabled, ensure the node number is not less than MSDP Scaleout size.
It is recommended that you set the minimum node number to 1 or more to bypass some limitations in AKS.
Client machine to access AKS cluster
A separate computer that can access and manage your AKS cluster and ACR.
It must have Linux operating system.
It must have Docker daemon, the Kubernetes command-line tool (kubectl), and Azure CLI installed.
The Docker storage size must be more than 6 GB. The version of kubectl must be v1.19.x or later. The version of Azure CLI must meet the AKS cluster requirements.
If AKS is a private cluster, see Create a private Azure Kubernetes Service cluster.
Static Internal IPs
If the internal IPs are used, reserve the internal IPs (avoid the IPs that are reserved by other systems) for MSDP Scaleout and add DNS records for all of them in your DNS configuration.
The Azure static public IPs can be used but is not recommended.
If Azure static public IPs are used, create them in the node resource group for the AKS cluster. A DNS name must be assigned to each static public IP. The IPs must be in the same location of the AKS cluster.
MSDP Scaleout connects to the existing NetBackup environment with the required network ports 1556 and 443. The NetBackup primary server should be 10.0 or later. The NetBackup environment can be anywhere, locally or remotely. It may or may not be in AKS cluster. It may or may not be in the same AKS cluster.
If the NetBackup servers are on Azure cloud, besides the NetBackup configuration requirements, the following settings are recommended. They are not MSDP-specific requirements, they just help your NetBackup environment run smoothly on Azure cloud.
Add the following in
/usr/openv/netbackup/bp.confHOST_HAS_NAT_ENDPOINTS = YES
Tune sysctl parameters as follows:
net.ipv4.tcp_keepalive_time=120 net.ipv4.ip_local_port_range = 14000 65535 net.core.somaxconn = 1024
Tune the max open files to 1048576 if you run concurrent jobs.