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NetVault 12.4 - Administration Guide

Introduction Getting started Configuring clients Managing catalog search Configuring storage devices
About storage devices SAN considerations Quest DR Series systems Quest QoreStor NetVault SmartDisk EMC Data Domain Systems Snapshot Array Manager Virtual Tape Libraries Virtual standalone drives Shared Virtual Tape Libraries Physical tape devices Storage tiers
Backing up data Managing policies Restoring data Managing NetVault Backup dashboard Managing jobs Monitoring logs Managing storage devices
Role-based access to manage storage devices Monitoring device activity Managing disk-based storage devices in list view Managing disk-based storage devices in tree view Managing the Snapshot Array Manager Managing tape libraries in list view Managing tape libraries in tree view Managing tape drives in list view Managing tape drives in tree view Adding shared devices
Managing storage media Managing user and group 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 the reporting utility Configuring NetVault Backup WebUI default settings Configuring NetVault Backup to use a specific VSS provider Configuring default settings using Txtconfig
Diagnostic tracing Managing diagnostic data Using the deviceconfig utility NetVault Backup processes Environment variables Network ports used by NetVault Backup Troubleshooting
Common errors Safe Mode in NetVault Backup

About Process Manager

The Process Manager (nvpmgr) runs on all NetVault Backup machines.

This process manages all other NetVault Backup processes. It creates and destroys the transient processes. The Process Manager also manages the allocation of the shared memory area for the process table and trace buffers.

You can modify the Process Manager settings from the Change Settings page.

 
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NOTE: You must restart the NetVault Backup Service to apply any changes to the Process Manager settings.

Configuring shared memory settings

To configure shared memory settings for Process Manager:
1
In the Navigation pane, click Change Settings.
2
On the NetVault Server Settings page, complete one of the following actions:
•
To configure default settings for the NetVault Backup Server, continue to Step 3.
•
To configure default settings for a NetVault Backup Client, click Client Settings. In the NetVault Backup Clients table, select the client, and click Next.
•
Under Services, click Process Manager.
3
In the Process Manager dialog box, configure the following settings.
 
Table 144. Shared memory settings for Process Manager
Setting
Description

Shared Memory Allocated to the Trace Buffer of Each Process

This setting controls the amount of shared memory allocated to the individual trace buffers of each NetVault Backup process.

•
The default value is 31KB on all platforms.
•
The minimum value is 1KB on all platforms.
•
The maximum value is 32KB on all platforms.

To increase the shared memory for individual trace buffers, type or select a new value. The shared memory is allocated in KB.

NOTE: Increasing the value of this setting could affect the performance and scalability of NetVault Backup. For example, it could reduce the maximum number of concurrent data transfers.

Shared Memory Used for Process Table

This setting controls the amount of shared memory allocated to the Process Table that maintains the details of all current NetVault Backup processes.

•
The default value for server and client is 16384KB and 3864KB respectively on all platforms.
•
The minimum value is 2000KB on Windows and 500KB on Linux and UNIX.
•
The maximum value is 128000KB on all platforms.

On NetVault Backup machines running a number for concurrent processes, you can increase the amount of shared memory for the Process Table to get optimum performance. To increase the shared memory, type or select a new value. The shared memory is allocated in KB.

On Windows, the shared memory is allocated dynamically.

On Linux and UNIX, the shared memory for process table is allocated from the shared memory pool. To increase the shared memory for process table on these platforms, you must first increase the overall shared memory pool. You can increase the shared memory by configuring the shmmax variable in the system configuration file. For more information about increasing the shared memory pool, consult the relevant O/S documentation.

4
Click Apply to apply the new settings and close the dialog box.

Configuring RAS device settings

This section includes the following topic:

•
Configuring connection settings for NetVault SmartDisk

Configuring connection settings for NetVault SmartDisk

The connection settings specify the period for which NetVault Backup makes retry attempts to establish a TCP connection to a NetVault SmartDisk and the time between retry attempts.

By default, the connection retry mechanism is disabled. Under most circumstances, you do not need to configure the connection settings for NetVault SmartDisk. If your backups report “failure to bind port” errors, then you can configure these settings to enable the connection retry mechanism.

To configure connection settings for NetVault SmartDisk devices:
1
In the Navigation pane, click Change Settings.
2
On the NetVault Backup Server Settings page, under Services, click RAS Devices. In the RAS Devices dialog box, configure the following settings:
•
Time limit for retrying a SmartDisk connection: This setting specifies how long the NetVault Backup Server tries to establish a connection to a NetVault SmartDisk device after the initial attempt fails.
The default value for this setting is zero (0). When set to zero (0), NetVault Backup does not make any retry attempts. If NetVault Backup fails to establish a connection due to insufficient ports, you can configure this setting to retry the connections for a specified period that allows the operating system to recycle the sockets for use. You can set the retry time to any value between 0 and 300 seconds.
•
Time (in seconds) between retries for a SmartDisk connection: This setting specifies the time between retry attempts. You can set the retry interval to any value between 0 and 60 seconds.
3
Click Apply to apply the new settings and close the dialog box.
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