Jump to content

Welcome to Geeks to Go - Register now for FREE

Geeks To Go is a helpful hub, where thousands of volunteer geeks quickly serve friendly answers and support. Check out the forums and get free advice from the experts. Register now to gain access to all of our features, it's FREE and only takes one minute. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation to your fellow members, get your own private messenger, post status updates, manage your profile and so much more.

Create Account How it Works

Problem with NTBackup - Corrupted data on LTO-4 with big files

  • Please log in to reply



    New Member

  • Member
  • Pip
  • 1 posts

We encountered a very strange problem for weeks with NTBackup when we're doing backups on LTO media. Here are the description of this problem:

We got a backup server with two LTO 4 ultrium tape reader from HP. Their firmware is up to date. The backup server is running on Windows Server 2003 R2 and all the updates are applied.

We have a script which must backup some files from different locations: some of these files are in local on the backup machine and other files must come through the network.

Once the backup is finished, there are lots of erros which are present in the log file with the following statement:

"WARNING: Portions of "XXX" cannot be read. The backed up data is corrupt or incomplete."

Errors occured on local files on the backup server but also on remote files which come through the network.

The only thing that I noticed is that it occurs on big files. The extensions of these files is vary: .bkf, .raw, .avi, .iso, etc.

Our files are not corrupted so I don't understand what happens. Everything worked perfectly in the past.

I changed the LTO tape readers, the motheboard and the hard drive of our backup server. I did a fresh install of the new hardware with all the updates as described before but it doesn't still work. I also did the test with our second backup server and the problem is the same.

Here is the command line used for the backup:
start /w %WINDIR%\system32\NTBACKUP.EXE backup "@%1" /n "%2-%DateComplete%" /d "%2-%DateComplete%" /v:no /r:no /rs:no /hc:on /m normal /j "%2-%DateComplete%" /l:f /p "LTO Ultrium"

Here is the version of NTBackup which were tested:
The version which is present with Windows Server 2003 R2 (don't remember the version number sorry).

Any idea about this problem ? Is there a fix for this ?

Thanks a lots,

  • 0


Similar Topics

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

As Featured On:

Microsoft Yahoo BBC MSN PC Magazine Washington Post HP