HP Legato Networker manual Task 3 Configure the Devices and Test the Operating System

Chapter 3: UNIX Disaster Recovery

Task 3: Configure the Devices and Test the Operating System

To configure the devices and test the operating system:

1.Configure any devices the NetWorker software requires, for example SCSI pass-through devices for autochangers. For information about configuring devices, refer to the Legato NetWorker Administrator’s Guide, UNIX Version.

2.Test that the:

•Name to Address resolution and TCP/IP are functioning properly. To test these, run ping on the server to reach a client, and then run ping on a client to reach the server.

•Operating system is functioning properly.

•Tape drive is functioning properly. To test this, run the mt commands.

• Operating system recognizes devices. If the operating system is not	3
recognizing devices, you might need to:

–Load the SCSI driver.

–Install the device driver software.

–Modify the device configuration files to enable the computer to communicate with the device during recovery. For details on modifying the device configuration files, refer to the Legato NetWorker Administrator’s Guide.

3.Ensure that the block size mode for tape devices used with NetWorker is set to variable. Otherwise, data recovery may fail. The procedure for setting the device block size varies depending on your operating system. For example, to set the tape device block size on an AIX system:

a.Open the IBM System Management Interface Tool (SMIT) and select the Devices box in the System Management section near the bottom of the SMIT window.

b.Select Tape Drive.

c.Select Change/Show Characteristics of a Tape Drive. This brings up a list of tape drives.

d.Select a tape drive from the list. The attributes of the selected tape drive will display.

e.Ensure that the BLOCK size (0=variable length) (Num.) is set to 0.

f.Repeat step d and step e for each tape drive the NetWorker software uses.

For information about setting the tape device block size on the operating system, refer to the operating system documentation.

Legato NetWorker, Release 7.0	31
Disaster Recovery Guide