Check drive status and media access property.
If drive status is unavailable, update drive following method.
ex)update drive libraryname drivenumber online=yes

If media access property is readonly, change it to readwrite..

I had the same problem yesterday,now I solved problem ..

Good luck..
From South Korea
Cddata co.ltd.

----- Original Message ----- 
From: "Bo Nielsen" <Bo_Nielsen AT FDB DOT DK>
To: <ADSM-L AT VM.MARIST DOT EDU>
Sent: Monday, March 05, 2001 6:17 PM
Subject: ANS1312E Server media mount not possible


> Hi
> 
> Can somebody help me.
> 
> A W2K Server TSM Client vers. 4.1.1
> TSM server OS/390 4.1.1.0
> StorageTek VSM tape library.
> 
> When I run a backup, I receive the follow error message:
> 
> ANS1312E Server media mount not possible
> 
> Can any tell me what the problem is.
> 
> Regards,
> Bo Nielsen
> 
> FDB data                                    Phone: +45 4386 4671
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> DK-2620 Albertslund                    E-mail: bo_nielsen AT fdb DOT dk
> Denmark