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NetVault 12.2 - Administration Guide

Introduction Getting started Configuring clients Managing catalog search Configuring storage devices Backing up data Managing policies Restoring data Managing NetVault Backup dashboard Managing jobs Monitoring logs Managing 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 default settings for global notification methods 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

Optimal transfer buffer size

The following table provides examples of the optimal values that can be used for some drive types.

 
Table 88. Optimal transfer buffer size of different drive types
Drive type
Optimal transfer buffer size (in KiB)

Fast Modern Tape Drives

For example, LTO series, SDLT, and SAIT

65537 (64MiB + 1KiB)

Medium Speed Tape Drives

For example, DLT8000, DLT7000, and AIT-3

32769 (32MiB + 1KiB)

Older Professional Tape Drives

For example, DLT2000, DLT4000, and AIT-2

16385 (16MiB + 1KiB)

Older Low Capacity Low-end Drives

For example, EXB-8505, AIT-1, and DAT

8193 (8MiB + 1KiB)

Checking the status of a tape drive

To check the status of an offline tape drive:
1
In the Navigation pane, click Manage Devices.
2
In the list of devices, click the icon to open the library that contains the drive, and then click the drive or the corresponding Manage Drive icon .
3
On the Tape Drive Management page, click Check, and then in the confirmation dialog box, click Check again.
If the device is operational, its status is changed to “Available.”

Changing the status of a tape drive

To change the drive status to online or offline:
1
In the Navigation pane, click Manage Devices.
2
In the list of devices, click the icon to open the library that contains the drive, and then click the drive or the corresponding Manage Drive icon .
3
On the Tape Drive Management page, click Online or Offline:
•
If the device is offline, click Online to bring it back online.
•
If the device is online, click Offline to mark it offline.
This operation does not physically take the device offline; it just makes the device unavailable for use in NetVault Backup.

Configuring cleaning slots

Before loading cleaning tapes, you must configure the slots that can hold the cleaning media. You can configure cleaning slots from the Slot Browser page.

 
* 
NOTE: If cleaning slots are not defined, cleaning tapes without barcodes are loaded every time the library is initialized.
To configure cleaning slots for a library:
1
In the Navigation pane, click Manage Devices.
2
In the list of devices, click the icon to open the library, and then click the Slots link or the corresponding Manage Slots icon to open the Slot Browser.
3
In the Slots table, select the slot that you want to use, and click Set Slot.
The slot must be empty.
4
In the Slot Settings dialog box, select the Set as cleaning slot check box to reserve the slot for cleaning tapes. In the Cleaning Slot list, type or select the slot number.
5
Click OK to save the settings and close the dialog box.
6
After the dialog box is closed, a message stating “Library device needs to be restarted” is displayed.
Access the Manage Devices page, and restart the library.
When you open the Slot Browser again, the slot status is set to CLN Slot.
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