I agree with previous answers, and I second to "envirinmental" note:

Is your environment fine?
Stable temperature & humidity within allowed limits, no vibrations, dustless, 
pure sinus stable voltage mains?
Evere tried another tape manufacturer?

regards
J.S.


> -----Ursprüngliche Nachricht-----
> Von: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] Im 
> Auftrag von Dennis Melburn W IT743
> Gesendet: Dienstag, 13. Dezember 2005 17:31
> An: ADSM-L AT VM.MARIST DOT EDU
> Betreff: Normal # of failures on tape libraries
> 
> Our sites use ADIC Scalar 1Ks as well as one ADIC 10K.  The 
> Scalar 1Ks have  4 LTO1 drives in each and the 10K has 34 
> LTO2 drives.  We experience occasional failures on these 
> drives and have to replace them.
> My question is, is it normal for a site that has alot of 
> drives to experience drive failures about every 1-1.5 months? 
>  My manager is rather annoyed at the fact that it seems that 
> we are constantly replacing drives even though it doesn't 
> cause any downtime for our TSM servers while they are being 
> replaced.  If this is a normal part of having tape libraries 
> then that is fine, but I don't have enough experience in this 
> field to say either way, so that is why I am asking all of you.
>  
>  
> Mel Dennis
> 
>