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NetVault 11.3 - Administration Guide

Introduction Getting started Configuring clients Configuring storage devices Backing up data Managing policies Restoring data Managing jobs Monitoring logs Managing storage devices
Monitoring device activity Managing disk-based storage devices in table view Managing disk-based storage devices in tree view Managing tape libraries in table view Managing tape libraries in tree view Managing tape drives in table view Managing tape drives in tree view Adding shared devices
Managing storage media Managing user accounts Monitoring events and configuring notifications Reporting in NetVault Backup Working with client clusters Configuring default settings for NetVault Backup
About configuring default settings Configuring encryption settings Configuring plug-in options Configuring default settings for post-scripts Configuring default settings for Verify Plug-in Configuring Deployment Manager Settings Configuring Job Manager settings Configuring Logging Daemon settings Configuring Media Manager settings Configuring Network Manager settings Configuring Process Manager settings Configuring RAS device settings Configuring Schedule Manager settings Configuring Web Service settings Configuring Auditor Daemon settings Configuring firewall settings Configuring general settings Configuring security settings Synchronizing NetVault Time Configuring default settings for global notification methods Configuring the reporting utility Configuring NetVault Backup to use a specific VSS provider Configuring default settings using NetVault Configurator Configuring default settings using Txtconfig
Diagnostic tracing Using the deviceconfig utility NetVault Backup processes Environment variables Network ports used by NetVault Backup Troubleshooting

Configuring timeout settings for Network Manager

To configure default settings for a NetVault Backup Client, click Client Settings. In the NetVault Backup Clients table, select the client, and click Next.
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Under Services, click Network Manager. In the Network Manager dialog box, under Timeouts, configure the following settings.

Time to complete a remote connection

This setting controls how long the NetVault Backup Server tries to establish a connection with a remote client.

The default setting is 300 seconds. To change the timeout interval, type or select a new value. The timeout interval is specified in number of seconds.

Time to wait before dropping inactive connection(s)

This setting controls how long the NetVault Backup Server waits before ending an inactive connection. It helps to reduce the amount of resources consumed by idle connections.

The default setting is 600 seconds. To change the timeout interval, type or select a new value. The timeout interval is specified in number of seconds.

Keep Alive rate

Keep-alive messages are used to verify that a connection between two NetVault Backup machines is still intact. The keep-alive rate controls how often the server sends keep-alive messages.

The default setting is 7 seconds. To change the interval, type or select a new value. The keep‑alive rate is specified in number of seconds.

Time between availability broadcasts

The NetVault Backup Clients broadcast availability messages at regular intervals that provide their status and location on the network. These broadcasts are used to discover new clients and update the client status on the NetVault Backup WebUI.

The default interval for availability broadcasts is 600 seconds. To change the interval, type or select a new value. The broadcast interval is specified in number of seconds.

Time between security broadcasts

Security broadcasts discover the password-protection status of clients, and notify whether its password has been enabled or disabled on a client. The Client Status icons on the NetVault Backup WebUI are updated based on these broadcasts.

The default interval for security broadcasts is 600 seconds. To change the interval, type or select a new value. The broadcast interval is specified in number of seconds.

Time between availability checks

The NetVault Backup Server performs availability checks at regular intervals to scan for changes in the network settings. If a change is detected, the server sends an interim broadcast to propagate the new settings. The broadcast system is then reset to regular pulse, reducing network traffic.

The default interval for availability checks is 10 seconds. To change the interval, type or select a new value.

You can reduce the interval between two checks to quickly detect and transmit changes. If you do not want to apply the changes immediately, use the default value or set it equal to the interval for Availability Broadcasts.

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Click Apply to apply the new settings and close the dialog box.

Enabling or disabling availability broadcasts

Availability broadcasts are used to discover NetVault Backup Clients and update the client status on the NetVault Backup WebUI. You can enable or disable availability broadcasts from the Change Settings page.

To configure default settings for a NetVault Backup Client, click Client Settings. In the NetVault Backup Clients table, select the client, and click Next.
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Under Services, click Network Manager. In the Network Manager dialog box, under Connections, configure the following setting:
Broadcast details to machines on local network: This check box is selected by default. Although you can disable this option, it is not recommended.
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Click Apply to apply the new settings and close the dialog box.

Configuring network addresses for multihomed machines

For multihomed machines, you can specify the preferred network address, fallback addresses, and barred addresses from the Change Settings page.

When a connection is initiated, the addresses are attempted in the following order:

To configure default settings for a NetVault Backup Client, click Client Settings. In the NetVault Backup Clients table, select the client, and click Next.
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Under Services, click Network Manager. In the Network Manager dialog box, under Connections, configure the following settings.

Preferred network address

Specify the primary IP address for network connection. You can only specify a single IP address.

Comma separated list of barred address(es)

Specify the barred or blocked addresses that you do not want to use for NetVault Backup connections. To specify multiple addresses, use a comma as delimiter.

Comma separated list of fallback address(es)

Specify the fallback addresses to use when the preferred network address is not available. To specify multiple addresses, use a comma as delimiter.

When configuring the network addresses, make sure that the preferred, barred, and fallback addresses do not conflict with each other

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Click Apply to apply the new settings and close the dialog box.

If the preferred address is unavailable and the NetVault Backup Server starts using a fallback address, it does not automatically revert to the preferred address when the IP becomes available.

To force the NetVault Backup Server to use the preferred address, do one of the following:

When you remove the client, the message “Machine <NetVault Backup Machine Name> Has Gone Down” (Warning Level: Background) is displayed on the View Logs page. Wait until the timeout for remote connection expires. The timeout interval is determined by the Time to complete remote connection setting (set to 60 seconds by default).
When the client is up and detected on the network, the message “Machine <NetVault Backup Machine Name> Has Come Up” (Warning Level: Background) is displayed on the View Logs page. To add the client, use the Find Machine command, and specify its preferred network address in the box.
Alternatively, disable or disconnect the network interface currently in use until the timeout for remote connection expires. The value configured for the Time to complete remote connection setting determines the duration for which the network interface needs to be disabled or disconnected. Restart the NetVault Backup Service when the client is reported as unavailable. The NetVault Backup Server uses the preferred address when the next connection attempt is made after you restart the service on the client.

Reducing startup delay

When the NetVault Backup Service starts, it attempts to resolve all client IP addresses listed in the machines.dat file, which resides in the etc directory under the NetVault Backup installation directory. Resolving all client addresses can cause a significant delay in the service startup and the machine can appear unresponsive during this time. You can reduce or avoid the startup delay by specifying the addresses that are not to be resolved during startup.

To configure default settings for a NetVault Backup Client, click Client Settings. In the NetVault Backup Clients table, select the client, and click Next.
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Under Services, click Network Manager. In the Network Manager dialog box, under Connections, configure the following setting:
Comma separated list of networks and addresses not to resolve: To reduce or avoid the startup delay, specify the addresses that are not to be resolved during startup.
To get the list of networks from the machines.dat file, issue the following command on Windows:
Based on this output, you can configure the following values in the Comma separated list of networks and addresses not to resolve box:
The clients that are offline and listed on the Manage Clients page can also cause the startup delay. To speed up the process, you can remove the clients that are offline or no longer in use.
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Click Apply to apply the new settings and close the dialog box.
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