Tape Libraries and Drives
cancel
Showing results for 
Search instead for 
Did you mean: 

Tapebackup Problem-Tape Reduction, Clean light going off!!

Jeff Goldberg
Occasional Visitor

Tapebackup Problem-Tape Reduction, Clean light going off!!

I'm having problems with my tape backups. I'm running Seagate Backup Exec (Now Veritas) 7.0 with a SureStore Dat24. The problem is the tape is getting a warning that it has been reduced in size and then the Dat24 clean light is going off. It's happened in the last three tape runs.

Help me, please-does anyone have a idea or answer why this is happening?
Oh! Not Again!!!
3 REPLIES
paul courry
Honored Contributor

Re: Tapebackup Problem-Tape Reduction, Clean light going off!!

The usual reason is either

a) A dirty drive. Running a cleaning tape 3 times through it usually solves the problem.

b) The drive is getting old and is ready for replacement.
Michael Tully
Honored Contributor

Re: Tapebackup Problem-Tape Reduction, Clean light going off!!

Hi,

Tape drives *WILL* eventually wear out and
become unusuable. DO NOT clean a tape drive
unless it is requested by the light coming
on. Cleaning tape drives more regularly than
this will result in the heads being damaged
by the constant abrasiveness of the cleaning
tape and the result is a drive that has worn
out before it's time. Given that the light
has come on after the last three runs says
that it is time to replace the drive. This
is done as part of your maintenance agreement
if you have one.

HTH
-Michael
Anyone for a Mutiny ?
liew chee wah_2
Occasional Visitor

Re: Tapebackup Problem-Tape Reduction, Clean light going off!!

I am not an expert but I can share my experience with you. I used DAT24 drive and 12/24GB tapes. Last time, I face problem with my informix backup. Before the backup is completed, the cleaning light goes on. And the backup failed. Finally, I and able to fixed this problem by telling informix my backup tape is only 12GB rather then 24GB. I guess this problem was due to the tape drive hardware compression algorithm can't achieve its intended efficiency when backing up Informix database. In this case, Informix 'think' it can write 24GB but actually it can't, when it reach the end of tape, problem arises. Try to configure your backup software to backup 12GB for each tape rather than 24GB. I assume you uses 12/24GB DDS3 tapes. Good luck.