please help meeee!!! Cannot restore data from tape

[sasageissa]

My windows 2000 DC has gone forever because of a trojan (still don't
know how come). Fortunately I've found a 2 months old tape that
contains the system state and C. I've opened it with ntbackup and
verified that the content was OK.
I've formatted the C partition and installed a fresh copy of windows,
sp4 and the latest hotfixes.

SURPRISE!

I've found out that ntbackup doesn't recognize the tape and Removable
Storage Manager puts the media support in the unrecognized pool.

RESULT: 200 students of a school cannot login into their accounts and
I have to recreate all the user and machine accounts.

PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEE!

 

[Pegasus \(MVP\)]

My windows 2000 DC has gone forever because of a trojan (still don't
know how come). Fortunately I've found a 2 months old tape that
contains the system state and C. I've opened it with ntbackup and
verified that the content was OK.
I've formatted the C partition and installed a fresh copy of windows,
sp4 and the latest hotfixes.

SURPRISE!

I've found out that ntbackup doesn't recognize the tape and Removable
Storage Manager puts the media support in the unrecognized pool.

RESULT: 200 students of a school cannot login into their accounts and
I have to recreate all the user and machine accounts.

PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEE!

I suspect that Windows fails to recognise the tape because
there is no data on the tape. The standard backup process
involves the following steps:
1. Create and schedule a backup job.
2. Run a test backup.
3. Restore the test backup to a spare disk, then test the disk.
4. Check the backup logs on a weekly basis.
5. Repeat Steps 2 and 3 every six months.

Many administrators stop after Step 1. This can have unpleasant
consequences.

 

[Anna Clark]

Fortunately I've found a 2 months old tape that

contains the system state and C. I've opened it with ntbackup and
verified that the content was OK.

I've found out that ntbackup doesn't recognize the tape and Removable
Storage Manager puts the media support in the unrecognized pool.

The above two statements appear contradictory. Can you explain? Same tape?
Same tape drive? If the tape opens and is ok in instance one, is it still?