System Guide 2- 7Backup and Restorethe date that the backup was made (for example,backup040402.log).To rename the log, perform the following steps:1. Open a terminal window and logon as root user2. Enter pwd to verify that /export/home/xrxusr is the currentdirectory.If it is not, enter cd /export/home/xrxusr to change to it.3. Enter ls to display the contents of the directory. One of the fileslisted should be backup.log.4. Change the log name to your desired name by entering thefollowing command:mv backup.log lognamewhere logname is the name you have selected for your backuplog.The file restore.log is used to record recovery activities. It is in theroot directory of the DSPERU diskette. Please note that thisdiskette, and therefore the log is only readable on a UNIX system.The first line of the log, contains the time and date the recoverywas initiated. To prevent the log from being overwritten the nexttime a recovery is performed, rename the log. You should give it aname that is somehow related the date that the recovery wasmade (for example, restore040402.log).Testing the backup tapeThe following procedure enables you to check if the Systembackup tape contains valid data.1. Ensure that the tape drive is connected and powered on.Insert the backup tape in the tape drive. If the backup requiredmore than one cassette, make sure that the first tape (Vol 1) isinserted.2. Open a Terminal window and logon as root user.3. Enter mt -f /dev/rmt/0 status to check the tape drive status.The system returns a message indicating the type of tapedrive.If the system generates the error message /dev/rmt/0: nosuch file or directory, enter mt -f /dev/rmt/1 status. If theerror message is displayed again, repeat steps 1 through 3 ofthe "Checking the tape drive" procedure, described later in thischapter. If the problem persists, call for service.4. When the tape drive location has been verified, enter thefollowing command:ufsrestore tvf /dev/rmt/xbnwhere x is either 0 or 1, depending on the value that you usedin step 3. After a few seconds, the system starts displaying thecontents of the tape cassette.