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Veritas NetBackup™ Installation Guide

Last Published: 2017-09-26

Product(s): NetBackup (8.1)

Upgrading clients after servers are upgraded

The update_clients installation script lets you push client software to clients. It does not let you push client software to a remote client that is also a NetBackup media or master server. You cannot push software this way because the server software and client binaries must be of the same version on a single host.

The update_clients installation script can determine the full client list that is configured on the server. When it is run without any parameters, it attempts to update all clients (as determined by /usr/openv/netbackup/bin/admincmd/bpplclients). If you do not want to upgrade all clients, you can specify a subset of clients. Use the hardware type and operating system parameters or use the -ClientList parameter.

You can run update_clients from a media server. The -ClientList parameter is required in this situation. The script lets you maintain a media server and a set of clients at an earlier release level than the master server. Doing so requires the informed use of the update_clients -ClientList command on a master server and a media server to avoid unwanted client upgrades.

For clustered environments, you can push client software only from the active node.

Note:

Additional steps are required to deploy clients in a secure environment where the clients do not have direct connectivity to the master server. More information on this topic is available. See the topic on deploying certificates on clients without connectivity to the master server in the Veritas NetBackup Security and Encryption Guide.

During a client upgrade, the new client files are written to a directory in /tmp on the client. This directory must have sufficient space to temporarily store the new client files to ensure a successful upgrade. If sufficient space is not available, a status message informs you that the upgrade script could not write to the location in the /tmp directory. To resolve this issue, allocate more space to the /tmp directory and perform the upgrade procedure again. The temporary directory is removed when the upgrade is complete.

To upgrade clients after you have upgraded servers

Use one of the following methods to start the installation script:

DVD	Insert the NetBackup UNIX Clients DVD into the drive. See About the NetBackup media kit. If necessary, mount the DVD. See Mounting NetBackup software media on UNIX or Linux systems. Enter the following command: cd_directory/install The cd_directory is the path to the directory where you can access the DVD.
ESD images (downloaded files)	Navigate to the location where the installation images reside. Enter the following command: ./install

When the following message appears, press Enter to continue:
```
Installing NetBackup Client Software.
Do you wish to continue? (y/n) [y]
```
The client binaries represent the operating system versions where the binaries were compiled. The binaries typically function perfectly on later versions of the operating system. For example, HP PA-RISC 11.11 binaries also are used on the HP PA-RISC 11.23 level of the operating system.
Select the client type that you want to load and follow the prompts to load that client type. Repeat as necessary until all desired client types have been loaded.
Make sure that you load the software for all of the UNIX client types that you intend to push to from this server. Otherwise, you cannot add these client types to the NetBackup policy configuration.
After the installation is complete, unmount the DVD.
As a root user on the NetBackup master server, enter the following command to see whether bprd is running:
/usr/openv/netbackup/bin/bpps
If bprd is running, stop it with the following command:
/usr/openv/netbackup/bin/admincmd/bprdreq -terminate
Enter the following command to make sure that backups or restores are not in progress:
/usr/openv/netbackup/bin/admincmd/bpdbjobs

Update UNIX client software by running the update_clients script. Specify the host names of the individual nodes (not virtual names) in the list of clients.

Use one of the following commands:

If you do not use a -ClientList file:	/usr/openv/netbackup/bin/update_clients
If you use a -ClientList file:	/usr/openv/netbackup/bin/update_clients -ClientList filename

The -ClientList parameter is required on a media server.

For more than 30 clients, you can divide the list into multiple files and run update_clients for each file.

To create a client list file, perform the following steps:

Change to the NetBackup admincmd directory, as follows:
```
cd /usr/openv/netbackup/bin/admincmd
```

Use the bpplclients command to create a file that contains a list of clients currently configured in the NetBackup database. The options to use on this command differ depending on whether you push from a master server or from a media server, as follows:

If you push from the master server:	./bpplclients -allunique -noheader > file
If you push from a media server:	./bpplclients -allunique -noheader -M \ m_server_name > file

The option descriptions are as follows:

m_server_name	Name of the NetBackup master server in this environment.
file	Name of the file to contain the list of unique clients. If no clients have been configured in the NetBackup database, the file is empty.

The bpplclients command writes output to file in the following format:

hardware os client

hardware	The hardware name. For example, run the ls command in directory /usr/openv/netbackup/client.
os	The operating system name. For example, run the ls command in directory */usr/openv/netbackup/client/hardware.*
client	The name of the client.

The contents of file might look like the following example:

Solaris Solaris9 curry

(Optional) Edit file.
Perform this step to change the contents of file. Edit file to contain only those clients you want to update with NetBackup client software. The host names of the clients must be the clients' individual node names. They cannot be virtual names. The hostname command and the domainname command return the correct values for the individual node names. The format can be either hostname or hostname.domainname.

The update_clients script requests master server information from you.

Starting update_clients script.
There are N clients to upgrade.
Do you want the bp.conf file on the clients updated to list this 
server as the master server? (y/n) [y]

Type either y or n.

Press Enter.

Enter the number of updates you want to occur simultaneously.

Enter the number of simultaneous updates you wish to take 
place. [1 - 30] (default: 15):

The installer attempts to retrieve the certificate authority certificate details.

Getting CA certificate details.
Depending on the network, this action may take a few minutes. To
continue without setting up secure communication, press Ctrl+C.

Be aware if you press Ctrl+C, this action requires you to rerun the installation or continue with the installation without the required security components. If these security components are absent, backups and restores fail.

If a certificate authority certificate is found, you receive the message shown:

Using CA Certificate fingerprint from master server:
01:23:45:67:89:AB:CD:EF:01:23:45:67:89:AB:CD:EF:01:23:45:67
If clients need an authorization token for installation, please specify one here.
Token (leave blank for no authorization token):

If you leave the authorization token blank, you receive the message shown:

WARNING: Authorization Token was not specified.
Manual steps may be required before backups and restores can occur.

Type either y or n in response to the question.

The upgrade will likely take Y to Z minutes.
Do you want to upgrade clients now? (y/n) [y]

After all servers and clients are updated, start the bprd daemon as the root user on the master server by entering the following command:
```
/usr/openv/netbackup/bin/initbprd
```