Veritas NetBackup™ Flex Scale Best Practices and Troubleshooting Guide

Last Published:
Product(s): Appliances (3.2)
Platform: NetBackup Flex Scale OS
  1. Introduction
    1.  
      Scope and intended audience
    2.  
      About NetBackup Flex Scale
    3.  
      About NetBackup Flex Scale nodes
  2. Configuration requirements
    1.  
      Physical environment
    2.  
      NetBackup Flex Scale configuration requirements
    3.  
      Firewall and network port requirements
    4.  
      Considerations for using IPv6 addresses
    5.  
      Considerations for configuring disaster recovery
  3. Best practices
    1.  
      Management network connectivity
    2.  
      Private network connectivity
    3.  
      Configuring AutoSupport for the appliance
    4.  
      Necessary software
  4. NetBackup Flex Scale tuning and sizing
    1.  
      Assigning media servers to a storage server
    2.  
      NetBackup Flex Scale tuning
  5. Troubleshooting NetBackup Flex Scale
    1.  
      NetBackup Flex Scale logs
    2.  
      Services management
    3.  
      Audit logs
    4. Collecting logs for cluster nodes
      1.  
        Uploading logs to Veritas Support
      2.  
        Downloading logs
    5. Forwarding logs to an external server
      1.  
        Configuring log forwarding
      2.  
        Modifying log forwarding settings using the UI
      3.  
        Removing log forwarding
    6.  
      Error messages displayed during the pre-upgrade check
    7. Troubleshooting NetBackup Flex Scale issues
      1.  
        If cluster configuration fails (for example because an IP address that was already in use is specified) and you try to reconfigure the cluster, the UI displays an error but the configuration process continues to run
      2.  
        Validation error while adding VMware credentials to NetBackup
      3.  
        NetBackup Web UI incorrectly displays some NetBackup Flex Scale processes as failed
      4.  
        Unable to create BMR Shared Resource Tree (SRT) on NetBackup Flex Scale Appliance
      5.  
        NetBackup configuration files are not persistent across operations that require restarting the system
      6.  
        Connection timeout errors during patch installs, upgrades, and rollback operations
      7.  
        Initial configuration wizard displays a license error after successfully configuring the cluster
      8.  
        Resource monitoring and remediation

NetBackup Flex Scale tuning

Recommended # of VMs per ESXi for VMware backup

This parameter is set for VMware workloads. When the number of VMs is less than or equal to two per ESXi host, the performance is linear. Set this value to 5 on the ESXi host.

Latency between sites during replication

Network latency between primary and secondary site should be minimal. The recommended value is less than 2 ms. You must have a reliable network with minimal packet drops and reordering. There should not be a Network Address Translation (NAT) based firewall between the source and the target sites.