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Difference encountered in file data. - Verifying Tape

UKG
Level 2
I am getting this error when the backup job runs, I have removed the verify from the job and it runs fine. So far I have tried: cleaning the drive, updating tape drivers, checking SCSI connection, different tapes, different model of tape (new) restarting servers and a replacement drive.
 
Any thought's?
5 REPLIES 5

Ken_Putnam
Level 6
If you run a verify against one of the tapes create by a "succressful" job with no verify, what happens?
 
Remember that in BackupExec speak, "Verify" does not compare disk data to tape data.  What it does is read the backed up data, compute checksums and compare the checksums to those written in the backup data itself
 
If the checksums match, the verify succeeds, if not - it fails.
 
Have you tried a couple of passes of the manufacturer's diagnostics against the drive?

UKG
Level 2
Hi Ken,
 
I'm trying to understand what you mean exactly, how can I run a verify against a backup job that has ran?
 
Thanks

Ken_Putnam
Level 6
See the Admin Guide page 297
 
 

UKG
Level 2
I don't have one to hand, got a link?
 
Thanks

Ken_Putnam
Level 6
You can get on from the Documentation page at
 
 
Here's a cut and paste
 

To create a verify job:

1.

On the navigation bar, click Job Setup.

2.

Under Backup Tasks in the task pane, select New job to verify backup data.

3.

Select the media you want to verify.

Note

The default view is the Resource view, which lists data by the device from which it

was backed up. The Media view lists the data that is contained on a piece of media.

To switch views, under View by, select the view you want to use. In addition, you

can set Backup Exec to display the selections in a graphic format or a text format. To

switch the format, select either Graphical or Text from the View format section.

4.

On the Properties pane, under Destination, click Device.

5.

Select the device that contains the media you want to verify.

6.

On the Properties pane, under Settings, click General.

7.

Select the appropriate options as follows:

General Verify dialog box

Item Description

Job Name

Type a name that describes the data you are verifying.

Verifying a Backup

298 Administrator’s Guide

8.

If you want Backup Exec to notify someone when the backup job completes, on the

Properties

pane, under Settings, click Notification (see “Selecting Recipients for

Notification” on page 539).

9.

If you want to run the job now, click Run Now. Otherwise, on the Properties pane,

under Frequency, click Schedule to set the scheduling options you want to use (see

Scheduling Jobs” on page 382).

After verification has completed, you can check the results in the job log

Message Edited by Ken Putnam on 07-18-200709:27 AM

Message Edited by Ken Putnam on 07-18-200709:27 AM