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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

Configuring Media Manager settings for backup indexes

To configure Media Manager settings for backup indexes:
1
In the Navigation pane, click Change Settings.
2
On the NetVault Server Settings page, under Services, click Media Manager. In the Media Manager dialog box, under General Settings, configure the following settings.
 
Table 139. Index-related settings
Setting
Description

Days of inactivity before an index is compressed

The online indexes are automatically compressed after 30 days of inactivity. To change the default inactivity period for index compression, type or select the new value.

To disable automatic compression of online indexes, set this option to zero (0).

Hours between scans for indexes to be compressed

This setting determines the interval at which the Media Manager scans the Media Database to identify backup indexes that can be compressed. The default value is 12 hours. To change the default interval, type or select a new value.

To disable Media Manager scans for index compression, set this option to zero (0).

Maximum number of indexes to be compressed/ uncompressed/offlined at a time

This setting determines the maximum number of backup indexes that can be simultaneously compressed, decompressed, or taken offline. The default value is 200 indexes. To change the default setting, type or select a new value.

Minimum Space For Index Decompression

The compressed backup indexes are automatically decompressed when you try to browse or restore the corresponding saveset. The minimum amount of space for index decompression is set to 500MB by default. This space is reserved on the drive or partition on which the NetVault Database resides. To change the minimum space for index decompression, type or select the new value. The space requirement is specified in MB.

A decompression request fails in the following circumstances:

•
The available space on the target drive or partition is less than the minimum required space.
•
The specified amount of free disk space is not available on the target drive or partition after index decompression.
When NetVault Database receives a decompression request, it reads the index header to determine its decompressed file size. The request is not completed if after decompression the free disk space on the target drive or partition would be less than the specified amount.

If the decompression request fails, an error message is displayed. If the request was issued manually, the message is displayed on the Create Restore Job page. When index decompression is performed automatically, the message is displayed on the View Logs page.

Days of inactivity before an index is offlined

To automatically delete online indexes after a specified period of inactivity, type or select the value. The inactivity period is specified in number of days. The default value is zero (0), which disables automatic deletion of online indexes.

Hours between scans for indexes to be offlined

This setting determines the interval at which the Media Manager scans the Media Database to identify backup indexes that can be taken offline. The default interval is 24 hours. To change the default interval, type or select a new value.

To disable Media Manager scans for online index deletion, set this option to zero (0)

Life Of Index When Loaded From Offline

The nvrestore CLI utility automatically imports an offline index if it is needed for a restore job.

This setting determines how long the indexes imported by the nvrestore utility are retained in the NetVault Database. The default value is one (1) day. To change the default setting, type or select the number of days you want to retain the index. This value must be specified in number of days.

3
Click Apply to apply the new settings and close the dialog box.

Configuring Media Manager settings for RAS devices

To configure Media Manager settings for RAS device:
1
In the Navigation pane, click Change Settings.
2
On the NetVault Server Settings page, under Services, click Media Manager. In the Media Manager dialog box, under General Settings, configure the following settings.
 
Table 140. Media Manager settings for RAS devices
Setting
Description

Offline RAS device after timeout time

The timeout value for determining that a RAS device is not responding. The default value is 7200 seconds. To change the default setting, type or select a new value. After the timeout expires, NetVault Backup sets the device status to offline.

Number of attempts (retries) for onlining a RAS device

The number of times NetVault Backup tries to contact an offline RAS device in an attempt to bring it back online. The default value is 3. If you set this value to zero (0), no attempts are made to bring the device back online.

Cancel online RAS device batch after timeout time

The amount of time NetVault Backup waits for a response from the RAS device before canceling the Media Manager batch that is trying to bring the device back online. The default value is 300 seconds.

RAS device start transfer batch timeout time

The amount of time NetVault Backup waits for a RAS device to begin data transfers. The default value is 30 seconds. You can change it to any value between 10 and 300 seconds.

RAS segment deletion batch timeout time

This setting determines the timeout interval for a batch request for deleting backup segments and indexes from disk-based storage devices. The default value is 300 seconds. If the task completion response is not received within this interval, the Media Manager cancels the current request, and sends a new request.

When deleting large savesets, you can increase the timeout interval to allow the request to be completed before the timeout period elapses. The timeout interval can be between 300 and 3600 seconds.

Max number of RAS segments can be deleted in one batch

By default, the Media Manager removes a maximum of 500 RAS segments per iteration. The value for this setting can be between 100 and 100000.

Max number of RAS Indexes can be deleted in one batch

By default, the Media Manager removes a maximum of 500 RAS segments per iteration. The value for this setting can be between 100 and 100000.

3
Click Apply to apply the new settings and close the dialog box.

Configuring transfer update settings for foreign RAS devices

NetVault Backup writes the data transfer statistics for Data Domain Systems to the stats.stnz file. The nvstatsmngr process uses this file and requires that it is regularly updated. However, frequent updates can have a significant performance impact on the system.

By default, NetVault Backup updates the stats.stnz file after every 5 seconds or 10 blocks of data transfer. You can change this default setting from the Change Settings page.

To configure transfer update settings for Data Domain Systems:
1
In the Navigation pane, click Change Settings.
2
On the NetVault Server Settings page, under Services, click Media Manager. In the Media Manager dialog box, under Foreign RAS Device Configuration, configure the following settings:
•
Transfer Update Frequency (Blocks): By default, NetVault Backup updates the stats.stnz file after every 10 blocks of data transfer. To change the default setting, type or select a new value.
•
Transfer Update Frequency (Seconds): By default, NetVault Backup updates the stats.stnz file after every 5 seconds. To change the default interval, type or select a new value. The time interval is specified in number of seconds.
3
Click Apply to apply the new settings and close the dialog box.

Configuring data transfer stall timeout period for NetVault SmartDisk

To configure data transfer stall timeout period for NetVault SmartDisk:
1
In the Navigation pane, click Change Settings.
2
On the NetVault Server Settings page, under Services, click Media Manager. In the Media Manager dialog box, under DAV RAS Device Configuration, configure the following settings:
•
Data transfer stall timeout: This setting determines the amount of time NetVault Backup waits for a “stream end” response from a NetVault Backup SmartDisk before reporting a stall. The default value is 1800 seconds. To change the default setting, type or select the new value. The stall timeout interval is specified in number of seconds.
3
Click Apply to apply the new settings and close the dialog box.
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