About the document
This document provides support limitations for IPv6 in NetBackup 8.1.1. It also provides a few important notes and recommendations that you need to know before you configure IPv6 in your NetBackup environment.
For IPv6-specific known issues, refer to the NetBackup Release Notes.
Important notes regarding IPv6 support
Review the following important notes:
- The IP_ADDRESS_FAMILY option on a NetBackup host must be set to AF_UNSPEC to support IPv6 communication.
For more details on the IP_ADDRESS_FAMILY option, refer to the NetBackup Administrator's Guide Volume I.
- NetBackup prefers to communicate over IPv4 where both IPv4 and IPv6 communication channels exist. If you want to force NetBackup to use IPv6-only communication on a dual stack host, use the preferred network setting. For more details, refer to the following article:
- Use of IPv6 hexadecimal addresses in NetBackup - NetBackup does not support the use of IPv6 addresses (for example: 2001:db8:85a3:8d3:1319:8a2e:370:7348) where you are able to specify a host name. If a host name is required, NetBackup does not support the use of an IPv6 address, even though host names can resolve to IPv6 addresses through DNS, local hosts files, or other means.
- In IPv6-enabled NetBackup 8.1.1 and later environments, Granular Recovery Technology (GRT) is supported.
- IPv4 loopback address (127.0.0.1) must exist on all NetBackup hosts (including IPv6-only) hosts. You should not uninstall IPv4 stack completely on IPv6-only NetBackup hosts. For example: On Windows hosts, you should not uninstall IPv4 stack by executing the netsh interface ipv4 uninstall command.
Review the following recommendation:
- Veritas recommends that you configure the networking stack on the master server so it is compatible with the networking stacks of other NetBackup hosts. Consider the following examples:
- If all clients and media servers are configured to be IPv6-only, the master server should either be in an IPv6-only or in a dual stack configuration.
- If some clients are configured to be IPv6-only and some clients are configured to be IPv4-only, the master server should have dual stack configuration.
If a client and the master server have incompatible network configurations, the following operations fail:
- Displaying Host Properties for the client using the NetBackup Administration Console on the master server
- Automatically detecting the client operating system during policy creation using the NetBackup Administration Console on the master server
- Browsing the client file system during policy creation
- Stream discovery for file system backups; when the policy is configured for Allow Multiple Data Streams and the Backup Selection includes ALL_LOCAL_DRIVES, multiple mount points, or wild-cards
- Application discovery for Intelligent Policies
- Initiating a backup or restore from the client. This includes DB2, Informix, Oracle, SAP, SQL-Server, Sybase, and other XBSA operations.
Note: In demilitarized zone (DMZ) configurations, NetBackup clients cannot directly communicate with the master server. Such configurations continue to be supported.
IPv6 support limitations matrix
The section provides support limitations for NetBackup platforms, components, and workloads with respect to IPv6 environment.
Note: The platforms, components, and workloads that are not listed in the following tables are supported on both IPv6-only and dual stack machines.
|AIX and HP-UX master server and media server||Not supported||Not supported|
Supported if you perform the additional steps that are available in the 'Special installation guidelines for HP-UX systems' section from the NetBackup Installation Guide.
|RHEL on IBMzSeries||Not supported||Not supported|
|NetBackup component||IPv6-only||Dual stack|
|Bare Metal Restore (BMR)||Not supported||Not supported|
|Master Server Cluster on Windows Veritas Cluster Server (VCS)||Not supported||Supported|
|Replication Director||Not supported||Supported|
|NetBackup workload||IPv6-only||Dual stack|
|Exchange Server||Not supported||Supported|
|Hadoop *||Not supported||Not supported|
|Nutanix *||Not supported||Not supported|
|SAP HANA *||Not supported||Not supported|
|Storage Foundation for Oracle RAC *||Not supported||Not supported|
* In the case of workloads that do not support IPv6-only and dual stack configurations, the associated media server must be configured with either dual stack or IPv4-only configuration.
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